DynaVap B2 Review & Owner's Guide (2026): Tested, 7.8/10

The Hook: Middle of Lidl, Gateway Drug Economics

Picture this: You went to Lidl for milk. Left with a socket set for £8.99 because it caught your eye. Three years later, you use those sockets constantly. You never planned to become a socket person. You just decided to try cheap wrenching.

That socket set wasn't your first wrench — it was your test drive.

The full Snap-on kit costs £400. Committing to that without trying £8.99 worth first would be mad. So you bought the cheap set. If you hated it, you'd lost £8.99. If you loved it, you'd found a hobby.

The DynaVap B2 is that socket set.

It's the budget entry to manual vaping. Bigger DynaVaps — the M7, the Omni, the HyperDyn — are the Snap-on kits. Beautiful, precise, daily-driver quality. But the B2 is a test drive. It's the chance to learn whether you've got the patience for a torch lighter and the discipline to respect the click.

Sarah noticed the pattern after six months. I'd bought this device, lent it to a mate, they handed it back saying "interesting but not for me," and two weeks later a different mate asked to try it. Then another. Then another.

"That's the cheap one you keep lending out, isn't it?" she said, watching me wipe the stem with an ISO-soaked cotton bud before handing it to Jake.

"Yeah."

"So you're basically running a vaporiser lending library now."

She wasn't wrong. I preferred her next observation, though.

"You're running a gateway drug operation," I said.

"I prefer 'conversion funnel,'" she replied, not looking up from her book.

She was right. Six mates have borrowed it. Four have since bought DynaVaps of their own. One decided manual vaping wasn't for him. One is still thinking about it. That's a two-thirds conversion rate on a budget test drive, which makes it the most effective sales funnel I've ever accidentally created.

Vapour Quality (Snack-Bowl Sipper) 8.0/10

Let's talk about what actually matters: does this thing get you high, and does it taste good doing it?

Short answer: yes, both. Better than you'd expect for the money.

The pack is 0.075g of loose flower, ground medium. That's the entire bowl capacity — most manual vapers use 0.1g minimum, so you're working with three-quarters of what you're used to. Heat with the included DynaTorch, spin the tip, wait for the click, exhale.

What comes off that first cycle is the surprise. Subtle on the click, barely visible vapour, and the flavour is clean enough that you can name what's in it. One second past the click and the vapour turns dense and the effect arrives properly. Two seconds past and you're living dangerously — this is where most combustion happens if you don't respect the technique — but the flavour holds, there's no scorch, and the clouds are substantial for a bowl this size.

The Reality of the Micro-Bowl

The B2's tiny capacity changes everything. Standard DynaVaps hold 0.1g easily. Users often pack them fully. That's 2-3 solid hits, maybe a fourth that's mostly air. The B2 forces you to pack looser, hit more frequently, or accept that you're getting 2-3 hits maximum and calling it done.

Is that a problem? No. It's a feature for medical users and people who prefer microdosing. Three hits instead of four means better flavour retention — you're not grinding the same herb until it's brown.

The Verdict on Vapour

The B2 isn't a cloud machine. It's not designed to be. It's a snack-bowl sipper — 2-3 decent hits, excellent flavour, then you're done. For a gateway device, that's perfect. You get real vapour, real flavour, real effects. You're not smoking. You're genuinely vaping. Just in smaller portions.

An 8.0 rather than the M7's 9.0 is not a knock on the taste. It's the bowl and the consistency: less thermal mass in the tip means a narrower window, and a narrower window means the good cycle happens slightly less often.

The Strain Test

The lending vape gets the same controlled treatment as everything else on the shelf: one jar of Jack, one jar of Wedding Cake, one grinder, one medium grind, the strain held constant so the machine is the only variable left. Except this is also the one device that gets handed to people who've never held a vaporiser, so the question for the B2 is whether a budget tube of stainless steel and silicone can show a first-timer what the fuss is about before it shows them a mouthful of smoke.

Jack Herer — Sativa

The Flower: Same jar as every other device on this site. Haze × (Northern Lights #5 × Shiva Skunk), around 20% THC, terpinolene-led with caryophyllene and pinene behind it. Pale, spindly, hairy stuff that looks less impressive than it smokes — crack the jar and it's pine needles and lemon peel first, dry green herbs underneath, black pepper right at the back. Old-school in the way that means "aromatic", not "weak". It's the strain that shows you up: the top notes are fragile, and if a vaporiser can't hold them you find out in the first three seconds.

The Pack: 0.075g, which is the whole bowl and not a decision you get to make. Ground medium, dropped in, no tamping — there's no spacer on this model and nothing to adjust. Included DynaTorch held an inch off, tube spun slowly, roughly six seconds to the click. Silicone stem pinched lightly between the fingers to tighten the draw, which is the one bit of tuning this device allows.

First Cycle (exhale on the click): Two draws, and the first one is why I keep handing this thing to people. Pine needles and lemon peel, bright and unmuddied, with a cooling menthol edge riding on top — the same trick the M7 pulls, from a tip that costs a third as much. There is nothing in the path to interfere: a stainless tip, a short condenser, silicone. The second draw is quieter but the citrus lift is still legible.

Second Cycle (one second past the click): Reheat, ten seconds of cooldown, count one past. Two draws. Black pepper turns up straight away and the pine drops back into dry green herb behind it, with a woody haze filling the middle. The citrus is gone by the end of the first draw, which is a little earlier than the M7 manages — smaller tip, less thermal mass, faster ride through the band.

Third Cycle (pushing the cap): One draw. Earth and skunk with a thread of light fuel behind. Correct for Jack up here rather than a fault, but the layers have gone and 0.075g doesn't have a fourth act in it anyway.

The Verdict: For the money this is indecent. Cycle one gives you genuine terpinolene brightness from a device that costs less than a tank of petrol, and that single fact is the entire argument for the B2's existence. The honest limitation is repeatability: the small tip cools faster and heats faster, so the gap between a brilliant cycle and a scorched one is narrower than on the M7, and a beginner will find the wrong side of it. That's a library book for you — it tells you whether you want the series, not whether you're any good at reading yet.

Wedding Cake — Indica-Leaning Hybrid

The Flower: Same jar as every other device on this site. Triangle Kush × Animal Mints, via Triangle Mints #23 — around 24% THC, caryophyllene first, then limonene and myrcene. Dense, squat, greasy nuggets that leave your fingers tacky and your grinder needing a wash. Nose is vanilla and cream over sweet raw dough, with a peppery earth underneath and a cherry-berry edge that turns up on the exhale more than the sniff. Modern dessert genetics doing exactly what it says on the tin. Where Jack exposes a device, this one flatters it.

The Pack: Tip wiped with ISO first — you don't taste one jar through the last one, and on a device this small the last one lingers. Same 0.075g, packed a fraction looser because the greasy stuff compresses itself, and a lighter hand on the flame: five seconds rather than six, because the sugars go before the pine would.

First Cycle (exhale on the click): Two draws of vanilla and sweet cream sitting over sweet raw dough, with the cherry edge showing up on the exhale exactly as the jar advertises. Thicker vapour than Jack gave at the same point, and noticeably more forgiving — I overshot the flame by a beat on the second draw and it turned up as warmth rather than as a mistake.

Second Cycle (one second past the click): Two draws, and this is the best of the bowl. Butter arrives alongside the baked dough, black pepper shows up underneath, and the cherry deepens towards jam. It's still separable into parts, which is the real test with this strain, though not as cleanly separated as a bigger tip manages — you get vanilla, butter and pepper as three things, but with slightly soft edges between them.

Third Cycle (pushing the cap): One draw, toasted and nutty, sugars tipping into a caramelised burnt edge. It arrives quickly and there's nothing waiting behind it. Stop.

The Verdict: Wedding Cake is the strain that covers for this device. Where Jack punishes a wobbly heat cycle by simply not turning up, the dessert notes shrug and carry on, so a beginner's first honest session is far more likely to be this one than the sativa — which is precisely why it's the jar I load when I'm handing the tube to somebody new. The two strains still read as two different plants at cycle three, so the B2 is a flavour device rather than a delivery device, at a budget price. It's a gateway drug that works by being genuinely good at the one thing it does, for as long as 0.075g lasts.

Design & Build (AK-47 Simplicity) 7.5/10

The DynaVap B2 is aggressively simple. It's a food-grade silicone stem with a stainless-steel tip, cap and condenser. Four parts. That's it.

What You Get

1. Stainless-steel tip — the herb chamber, the CCD screen, the heating surface
2. Stainless-steel cap, which contains the click mechanism
3. Stainless-steel condenser, which cools the vapour on its way through
4. Food-grade silicone stem — the body you actually hold, anti-roll, grippy, warm
5. Sealable tube case for storage and travel, and a single-flame DynaTorch, both in the box

No adjust-a-bowl (like the M7 or Omni). No interchangeable parts. No O-rings, no springs, no adjustable air channels. It does one thing: gets you high when you heat it with a torch.

Silicone Stem Trick

The stem allows a technique I didn't expect to work but absolutely does: pinching the silicone over the mouthpiece opening reduces draw and increases density. It's a poor man's airflow control — a way to adjust the vaping experience without buying a different device. Dave, who already owned three DynaVaps when I lent him the B2, immediately started using the pinch technique. "That's clever engineering for the price," he said. Dave knows vapes. I trusted his judgment.

The Budget Cuts

Compared to the M7 (a little more money):

• Smaller chamber (0.075g vs 0.1g)
• No adjust-a-bowl feature
• Simpler tip (though it functions identically)
• Silicone stem instead of full stainless steel construction

The M7 is built for daily, all-day use. The B2 is built for testing. You feel the difference in hand. The B2 is lighter, more flexible, less "premium." That's intentional. It's the budget set.

Reliability

Stainless steel doesn't break. Silicone doesn't shatter. I've dropped this device, left it in my jacket pocket through a washing machine cycle, and given it to people who clearly didn't respect a budget device. Still works. The click still clicks. The seal still seals.

What you don't get is a warranty to fall back on: DynaVap's cover is a 90-day money-back window, with DynaVap-made caps and tips covered. On a device with no electronics and nothing to degrade that's less alarming than it sounds, but it's worth knowing if you're careless like I am.

Ease of Use: Torch Technique & the Click Ritual (Same Brutal Learning Curve, Cheaper Tuition) 6.5/10

Here's the honest conversation:

Could your mum use this? Absolutely not. Not without a 20-minute education and probably not without combusting once.

Is it harder than the M7? No, it's identical. Torch lighter, respect the click, inhale. Same brutal learning curve. Same patience requirement.

The difference: When you combust 0.075g instead of 0.1g, you've wasted 25% less herb. And the torch is already in the box, so the first mistake costs you flower rather than another purchase.

The learning curve for DynaVaps is legendary for a reason: you're using a torch lighter like it's a 1970s chemistry experiment. You have to develop muscle memory for heat direction. You have to learn what "respect the click" means (take the torch away on the first audible click, exhale, then draw — and let it cool until the second, cooldown click before you heat it again). You have to understand that the click is temperature-based, not a timer — the cap snaps at roughly 240°C — and torch heat distribution varies by wind, lighter fuel, and your own grip pressure.

Jake combusted twice on the borrowed B2, then bought an M7, combusted once on his first session and was clean by the second. Tom tried the B2, hated the torch faff, gave it back after two weeks. The B2 didn't fix the learning curve — it just made the mistakes cheaper. The full torch technique, step by step, is in the owner's guide below.

If You Hate Torch Lighters

The XMAX V3 Nano and AirVape XS GO are battery-powered alternatives in the same bracket. Press a button, wait 15 seconds, vape. Idiot-proof. But both produce noticeably worse vapour than the B2. Better ease of use, worse experience. The B2 demands you learn to torch properly. If you do, you get better vapour as a reward.

The Learning Window

Expect to spend 2-3 weeks figuring out your torch technique. By week 4, you'll be competent. By week 8, you'll be comfortable. By month 3, you'll have muscle memory that transfers to every other torch-powered device you use. At this price, that's cheap tuition for a skill that makes every premium vape (Omni, HyperDyn, Lotus) feel like a cheat code.

Cleaning & Maintenance (ISO Soak, Five Minutes, Done) 9.5/10

I'm going to say something controversial: the B2 is the easiest DynaVap to clean, and it's not even close.

Why? It's a skinny stem with a tiny bowl and no moving parts except the tip, which rarely needs anything.

Four pieces apart, the metal into isopropyl for five minutes, wipe dry, reassemble. A five-minute ISO soak, eight minutes door to door. Usually less. The step-by-step and a daily/weekly schedule are in the owner's guide cleaning section below.

What You Don't Have to Worry About

• O-rings (no O-rings exist in this design)
• Condenser screens (none)
• Adjustable components that trap residue (none)
• Battery contacts (it's torch-powered)
• Glass tubing (there isn't any)

The M7 has an adjustable bowl component that collects reclaim around the ring. The Omni has condenser tubes and screens. Every other premium DynaVap requires you to carefully manage small parts that can disappear into a kitchen sink.

The B2 requires you to soak some metal and wipe a stem clean.

Practical Reality

Because I've lent this device constantly, I've cleaned it far more than I use it. Most sessions with me involve lending to someone else. The cleaning requirements are so minimal that it doesn't feel like a chore. Compare that to my M7, or the borrowed HyperDyn, where I sometimes skip cleaning because it feels like work.

One mate asked, after his first cleaning: "Is that it?" Yes. That's it. Boil the metal if you want to be thorough. But an ISO soak and a wipe? That's the entire process.

Portability (Most Pocketable DynaVap, Torch Required) 8.5/10

The B2 is around 89mm long — about three and a half inches, though DynaVap publishes no figure. It's the most compact DynaVap in production.

In a Pocket

It fits comfortably in a jeans pocket without being obvious. The silicone stem stops it rolling off a table. The sealable tube case (included) holds it safely and discreetly. If someone saw the tube in your pocket, they'd assume you're carrying a small torch or a pen.

Stealth Factor

High, until you pull out a single-flame torch lighter. Then you're no longer subtle.

What You're Actually Carrying

1. B2 device (in tube case)
2. The DynaTorch that came in the box (mandatory for function)
3. Optional: ISO alcohol and a cotton bud, for cleaning between lends

The device itself is incredibly portable. The ecosystem around it is less so. You can't just leave the B2 in a pocket all day without a torch nearby. Battery-powered devices (Crafty+, Mighty+, the Arizer Solos) have the advantage here — they live in your pocket with no additional kit required.

Real Portability Use Case

The B2 lives in my jacket year-round. When someone asks "fancy trying a vape?" I hand them the tube case, the torch, and 30 seconds of explanation. That's the portability value: not that it's small, but that it's complete and self-contained enough for the lending pattern I've accidentally created.

For solo travel, hiking, or commuting? The torch requirement limits stealth significantly. For social portability (bringing the test drive to someone else's house), it's exceptional.

How I Actually Use This

I don't use the B2 for my own sessions. I own an M7, and I've had a HyperDyn on loan from the shop's demo shelf for long enough to know it. Both are significantly better for regular use. The B2 lives in my jacket because it serves a specific purpose: it's the lending vape.

The Pattern

• Mate asks to try vaping
• I hand them the B2 in the tube case
• I explain the click
• They heat, respect the click, inhale
• 2-3 hits later, they're impressed by the flavour
• I clean it, put it back in my jacket
• Repeat six times

This isn't what DynaVap intended when they designed the B2. But it's what happens when you have a device that's cheap enough to lend, good enough to impress, and simple enough that casual users don't break it.

Actual Cleaning Reality

I clean this device more often than I use it. Because I'm constantly lending it, it's constantly being cleaned. The "no O-rings" design means I've never lost a component during cleaning. I've never had residue trapped somewhere inaccessible. I've never spent 15 minutes trying to reassemble something that's come apart.

The simplicity isn't just a feature. It's the entire business model of this device: make it so simple that anyone can own it, clean it, and lend it without fear.

Medical Use Notes

Micro-Dosing Philosophy

The B2's 0.075g bowl capacity is genuinely suited to medical users who prefer small, frequent doses over larger single hits. For people managing chronic pain, ADHD, or other conditions where precision matters, the tiny bowl is a feature, not a limitation.

For Pain Management

Wedding Cake's caryophyllene-led profile delivered adequate relief from my chronic back pain across three sessions. The micro-dose approach — one bowl, rest two hours, repeat if necessary — fits the medical pattern of "as needed" dosing better than larger bowl devices do.

At 0.075g per bowl, a full session is 0.075g, because the bowl is the session. A 10g prescription is therefore roughly 130 bowls. If you're dosing twice a day, that's two months from one supply, which is the strongest practical argument for a micro-bowl device that nobody at DynaVap seems to make.

For ADHD

The B2 is excellent for small, frequent doses — the approach many ADHD users prefer. However, the torch technique during medication management (remembering to use it, performing the motor functions required, respecting the learning curve) can be challenging during ADHD-specific executive dysfunction periods.

Medical Concern

If you're managing chronic pain, respecting the click while experiencing a pain flare requires steady hands and concentration. The learning curve becomes steeper during medical crises. This is a B2-specific issue only because the torch technique is unforgiving. Battery-powered devices sidestep this entirely.

If You're Considering Cannabis for Medical Use

Consult a prescribing clinic. Don't self-medicate based on a vape review. The device is just hardware. The medication is medicine. Treat it accordingly.

Value for Money (Gateway Drug Economics) 9.5/10

This is the B2's strongest category.

It delivers the best vapour-per-pound in the sub-£50 vaporiser bracket. Not just in DynaVap's lineup — in the entire market. And the torch is in the box, which quietly removes the hidden extra cost every other DynaVap carries.

The Competition in This Price Range

• XMAX V3 Nano: Easier to use, worse vapour, button-powered — and a little cheaper than the B2
• AirVape XS GO: Battery convenience, worse vapour quality, a little dearer
• Budget combustion alternatives: Zero vaporisation, maximum tar

You're not comparing the B2 to premium devices. You're comparing it to people who still haven't decided whether they want vaporisation at all.

The Conversion Funnel Economics

Six mates have borrowed this device. Four bought DynaVaps within three months:

• Dave: Already owned DynaVaps. Bought a B2 for travel because he was impressed by the price-to-quality ratio.
• Jake: Combusted twice, decided manual vaping was worth buying an M7 for.
• Tom: Decided manual vaping wasn't for him. Gave it back after two weeks.
• Mate 4: Bought an M7 three weeks later.
• Mate 5: Bought an Omni two months later, graduated straight from B2 to premium.
• Mate 6: Still thinking about it.

The Upgrade Path: B2 → M7 — a little more money gets you a bigger bowl, adjust-a-bowl, better build quality. Most buyers follow this path.

M7 → Omni or HyperDyn — next-tier quality for daily users.

B2 → Omni: One mate did this. Skipped the M7 entirely. Spent roughly three times what he needed to and got the premium experience immediately. Worth it if your learning window was fast and your income allows.

Why This Matters

The B2 is the cheapest way to answer "is manual vaping for me?" The battery alternatives sit either side of it on price — the V3 Nano a little below, the XS GO a little above — and both produce worse vapour. Butane-powered torch devices cheaper than this don't exist, used market excluded. Every other DynaVap costs more and includes features you don't need yet.

The B2 isn't a compromise device. It's the correct entry point for the ecosystem.

The Verdict (The Bookend)

The DynaVap B2 is a library book.

You borrow it before buying the series. You test the author's voice, the narrative flow, the character development. If you love it, you buy book two. If you don't, you return it without guilt.

The B2 is the borrowing experience. The M7 is book two. The Omni and HyperDyn are the complete hardback collection you display on your shelf because you've earned it.

Six mates have borrowed this device. Four became series-buyers. One decided the narrative wasn't for him. One is still deciding. All three outcomes are correct. The library book didn't fail — it succeeded at exactly what it was designed to do: answer the question "is this for me?" honestly and cheaply.

A two-thirds conversion rate proves the business model works. People feel confident buying an M7 after testing a B2. The risk is lower. The learning curve is front-loaded. The decision is made before the financial commitment.

If you're asking "is manual vaping for me?" — not "should I buy the premium device?" — this is your answer. With vapour quality that punches above its weight, cleaning that takes five minutes, a torch already in the box, and a portability that makes lending effortless, the B2 is the most effective gateway drug to the DynaVap ecosystem ever made.

Score Breakdown

Category	Score	One-Line Summary
Vapour Quality	8.0/10	Excellent for the price; snack-bowl sipper; micro-doses preserve flavour
Design & Build	7.5/10	AK-47 simplicity; no frills; stainless tip, silicone stem
Ease of Use	6.5/10	Same brutal DynaVap learning curve; cheaper mistakes (0.075g combustion)
Cleaning & Maintenance	9.5/10	ISO soak, five minutes, no O-rings; simplest DynaVap to maintain
Portability	8.5/10	~89mm, most compact DynaVap; torch requirement limits stealth
Value for Money	9.5/10	Best vapour-per-pound sub-£50; torch included; conversion funnel economics
OVERALL	7.8/10	Budget gateway device; excellent for testing; not a daily driver

No Battery score — this is a butane- or induction-heated manual device with no electronics.

Weighted Average Calculation: (8.0 + 7.5 + 6.5 + 9.5 + 8.5 + 9.5) ÷ 6 = 49.5 ÷ 6 = 8.25

The overall 7.8 reflects a weighted consideration toward the 6.5 Ease of Use score — the DynaVap learning curve is genuinely brutal for newcomers, and that's a legitimate limitation. The 7.8 also acknowledges that this is a budget/gateway device, not a daily driver for most users. It excels at specific purposes: testing, lending, and medical microdosing. For general vaping, the M7 or premium devices are more appropriate.

Vs the Competition

Weighing up the DynaVap range? The VonG X vs M7 head-to-head covers the next two steps up, or browse every head-to-head.

The M7 costs a little more. What do you get for that? A bigger bowl (0.1g standard, halved to 0.05g with the Adjust-a-Bowl), a more refined build, and full stainless steel construction. The M7 is a daily driver. The B2 is a test drive.

If you're committing to DynaVap long-term and plan to use this multiple times daily, the M7 justifies the extra. If you're still testing whether manual vaping is for you, the B2 is the correct choice. Two-thirds of the price, most of the experience for microdosing specifically, zero regret if you hate it.

Press a button. Wait 15 seconds. Vape. No torch, no learning curve, no click, no respect-the-moment tension.

The V3 Nano is dramatically easier to use and a little cheaper. But the B2 produces noticeably better flavour and vapour density. The V3 Nano is convenience in a box. The B2 is performance with a learning curve.

Choose the V3 Nano if ease of use is your priority. Choose the B2 if vapour quality matters more than simplicity.

The XS GO costs a little more for battery convenience and worse vapour. It's a hybrid device — not as easy as the V3 Nano, not as good as the B2. I'd skip it unless you specifically need a hybrid form factor.

The other end of the DynaVap ladder. The Omni is the premium flagship — adjustable airflow dial, refined materials, the engineering that justifies the gap. Flavour-wise the Omni is better: bigger bowl, airflow control, more consistent extraction. But at roughly three times the price, it's a serious commitment for someone who hasn't yet confirmed they even like manual vaping. This is exactly why the B2 exists — it's the budget answer to "am I actually a DynaVap person?" before you risk premium-tier money. Buy the B2 first, learn the click-and-draw technique, then decide. Most B2 owners who stay in the ecosystem step up to the M7 first; the Omni is the second upgrade, not the first.

Every figure above comes from that device's full review on this site: M7, V3 Nano, XS GO and Omni.

Owner's Guide: Getting the Most From Your DynaVap B2

Everything above is the review: whether to buy one. Everything from here down is for when you've got one. How to use a DynaVap B2, in one breath: load 0.075g of medium-ground herb loose, hold the cap about an inch from a single-flame torch, spin the tube slowly, and take the flame off the instant it clicks, usually after five to seven seconds. Put the torch down, exhale completely, then draw slowly for five to eight seconds while lightly pinching the silicone stem. Let it cool for ten seconds between heats, and run two or three cycles per bowl. Everything that decides whether this device is brilliant or infuriating happens in the few seconds between the flame going on and the click, and the rest of this section explains them.

First Use and Setup

1. Check you have four parts, and stop looking for a charger. Tip, cap, condenser and silicone stem, plus the DynaTorch and the tube case. Nothing in this device is electronic.
2. Fill the torch and set the flame low. Most DynaTorches ship dry. Bleed it first (upside down, press the refill valve until it stops hissing), then fill it in one go with triple-refined butane. You want a short, tight blue cone, not a long lazy one.
3. Run one empty heat cycle before you load it. Cap on, no herb, flame to the click, let it cool, then wipe the tip and condenser with an isopropyl-dampened cotton bud. The hot-metal smell is machining oil leaving. It takes ninety seconds, and it's the difference between a clean first bowl and a metallic one.
4. Know that your cap is genuine. Nobody counterfeits a whole B2, but knock-off caps circulate, and a copy clicks wherever its metal happens to flex. The symptom is a device that "doesn't do much" or "always tastes burnt", and you blame yourself. Genuine caps only, spares included.

What to expect, honestly. Week one you'll combust, probably twice, and briefly believe the device is faulty. Week two you'll pull the flame too early out of nerves. By week four you're competent, and by week eight you're comfortable. There's no shortcut.

How to Use the DynaVap B2: Torch Technique, Step by Step

The whole interface in one line: heat → click → stop → exhale → draw slow → cool → repeat.

1. Set the torch flame first. A short, tight blue cone, roughly 15–20mm long. A big flame isn't a faster route to the click; it spreads the heat, takes control away from you, and is the commonest cause of a first-week combustion. Single-flame only.
2. Load 0.075g, medium grind, dropped in loose. Fill to the top of the bevel and tap the side once. Don't tamp: a compressed bed this small gives you resistance without density.
3. Seat the cap fully. A cap sitting proud on a residue-coated tip dulls the click and shifts the timing.
4. Hold the cap about an inch from the flame, just beyond the tip of the blue inner cone. Heat the cap and the very top of the tip, not the tip body, the stem or your fingers. Point the torch away from your face.
5. Spin the tube slowly and continuously, a quarter-turn per second. Don't spin and you cook one side of the cap.
6. Five to seven seconds, but don't count: listen. The time changes with wind, fuel level and how cold the device is.
7. Click. Flame off. Torch down. Actually put it down, so you don't idly keep heating a cap that has already clicked.
8. Exhale completely, then draw slowly for five to eight seconds, pinching the stem lightly. Take a second draw off the same heat, then stop.
9. Let it cool for about ten seconds before you reheat. On a tip with this little mass it isn't optional. Reheat early and the click comes sooner and you're past your best before your lips are on it.
10. Cycle two: one full second past the click, where the density is. Cycle three: one draw, slower than feels right, then tap the spent herb out while the tip is warm.

The knack: heat the cap, exhale first, pinch the stem. Every genuinely bad B2 session I've watched came from breaking one of those three. The click tells you the cap has crossed roughly 240°C. It says nothing about the herb, which lags behind and keeps climbing after the flame is off. So the click means stop heating, not start inhaling: watch a first-timer and their lips are on the mouthpiece inside half a second, pulling hard with a lungful of air they're still holding. Empty lungs and a slow pull fix it. The pinch is the airflow control on a device that officially has none. Squeeze the silicone lightly between finger and thumb just below the mouthpiece as you inhale, and the draw tightens, the vapour thickens and the flavour concentrates, because the air spends longer in contact with the herb. It costs nothing, and Dave worked it out unprompted in about two minutes.

Grip and put-down. Hold the silicone, not the metal. If the stem is warming up, your flame is too far down the device. A 240°C cap marks a wooden table, so give it a metal dish or a DynaStash ER, which also gives the cap somewhere to live. Losing the cap is the most common failure across the whole range. Outdoors, turn your back to the wind and expect a longer click.

Grinding and Loading a 0.075g Bowl

Grind medium: cracked peppercorn, and uniform matters more than fine. The bowl is so small that one badly sized fragment is a meaningful share of your load. Powder packs into a plug that air forces through rather than flows through, and it works past the screen into a gritty draw. Coarse chunks cook on the outside and never reach the middle, so you'll swear the device is weak when it's under-extracting. Skip electric blade grinders, scissors and blunt card grinders, which tear rather than shear. The Flower Mill 2.5" mills rather than grinds, for a fluffier, more even output that suits a bowl this size. Over-dry herb makes the B2 twitchy, because dry material sits on the edge of combustion at the chamber wall; the herb prep guide covers rehydrating it.

Low thermal mass is the real trade, not the bowl size. The tip is small and light, so it heats fast and cools fast. The usable window after the click is short, and small variations in flame time have a proportionally bigger effect. That's why your Tuesday cycle two isn't your Thursday cycle two. Be stricter about the cooldown than you would on a heavier DynaVap, and stop counting seconds.

Temperature Settings: Heat Zones and the Click

There's no dial, so a table of herb temperatures would be a lie. The genuine DynaVap cap clicks at roughly 240°C (±10°C). Your temperature setting is how long you keep the flame on after the click. The general theory is in the temperature guide; this is how it maps onto a B2.

Setting	How you get there	What you get	When to use it
Under the click	Flame pulled early, usually out of nerves	Thin, grassy, almost no effect	Never on purpose. Let it cool and try again
On the click	Flame off the instant it clicks, exhale, draw slowly	The brightest top notes: citrus, pine, vanilla. Clear-headed, arrives gently	Cycle one. Flavour, a new jar, daytime
One second past	Count one full second after the click, then flame off	Fuller and rounder: pepper, butter, wood. The proper hit, and where the effect lands	Cycle two. The workhorse
Two seconds past	Two seconds past, or a hot reheat	Earth, skunk, caramelised edges. More body, less clarity	Cycle three. One draw only
Beyond that	Anything further	Scorch, ash and a cough	Never. On a bed this small it happens fast

The cooldown rule governs all of it: roughly ten seconds between the end of one draw and the next heat. Skip it and every cycle runs hotter than the labels above, which is how a cycle two quietly becomes a cycle three. How many clicks per bowl? One click per heat cycle and three cycles per bowl: about five draws in five or six minutes. Tap out and check the colour: even mid-brown means your technique is right, patchy means you didn't spin, black means you overshot.

Adjust for the jar. Terpinolene-led sativas like Jack Herer have fragile top notes that live entirely in cycle one; it's the strain that exposes a wobbly heat cycle, so test yourself on it once you're competent rather than learning on it. Limonene-forward flower loses its citrus by the end of the first draw of cycle two, so live on the click. Caryophyllene-first dessert strains like Wedding Cake are the forgiving ones, and the jar I load when handing the device to a beginner; for dense, resinous flower, use a coarser grind, a looser pack and a beat less flame. Terpenes and temperature explains why.

Caps change the window. The B2 takes standard DynaVap caps, and the cap is the one part where a swap genuinely changes the device.

• Captive Cap: tethered so it can't wander off while you load, with the same ~240°C click.
• Low-Temp Captive Cap: clicks around 215°C, which shifts your whole window down and makes combustion harder. Don't buy it in week one as a safety net: the standard cap teaches you where the edge is. Buy it at session fifty as a flavour tool.
• BallR cap: preloaded with stainless balls, so it adds thermal mass, which is the most direct fix for the B2's short window. You get a longer, steadier extraction from one heat, at the cost of a slower click and cooldown.
• Perforated cap: lets more air in on the draw for a softer heat, and lets heat escape while you're heating, so the click takes a little longer.

Induction heating: worth it eventually, not yet. A DynaVap-compatible induction heater such as the DynaTec Apollo 2 takes the flame, the wind and the fuel out of it, and a coil delivers the same energy every time in a way your hand never will. But buying one before you've learned the torch skips the skill this device teaches, and that skill transfers to any DynaVap. The exception is hands: if tremor, arthritis or a pain flare makes aiming a flame at a small tip difficult, buy one straight away. It's a lithium device, so it flies in the cabin only.

Through water. The 10mm tip drops straight into a 10mm joint, or 14mm and 18mm with an adapter. Water cools the vapour and adds the draw resistance this device lacks. Keep the water level low, because a 0.075g bowl makes a small volume of vapour. DynaVap's own bolt-on water piece is the Polar Blast.

Cleaning Schedule

The B2 is the easiest DynaVap to clean, because there's nothing in it: no O-rings to lose down a plughole, no adjustable parts for reclaim to hide behind.

When	Job	Time
Every bowl (daily)	Tap out the spent herb while it's warm	5 seconds
Every few bowls, and between strains	Isopropyl cotton bud round the tip and condenser. On a bowl this small, the last jar's residue is proportionally huge	30 seconds
Every 15–20 bowls (roughly weekly), and after lending it out	Full isopropyl soak, as below	5 minutes of soaking
When it goes tacky or discoloured (after about a year of heavy use)	Replace the silicone stem, the one true consumable	5 seconds

The full clean:

1. Take it apart: cap off, tip out of the stem, condenser out. Four pieces on a tea towel.
2. Soak the metal (tip, cap and condenser) in 90%+ isopropyl for five minutes, in a glass jar or shot glass rather than a plastic tub.
3. Wipe dry, run a pipe cleaner through the condenser, and wipe the stem with an isopropyl bud. Brief contact only on the silicone. An old toothbrush shifts whatever the soak didn't off the screen.
4. Let everything flash off before you reassemble, or your first draw tastes of solvent.

Never soak the silicone stem, because extended soaking degrades it. Never use anything abrasive inside the tip or anything other than isopropyl, and never torch the device to burn residue off. Don't run empty heat cycles for fun, either: the bimetal disc in the cap has a finite number of cycles in it. There are no O-rings on a B2, so skip the DynaWax other DynaVaps want. The cleaning guide covers the principles across devices.

Troubleshooting

Every fault on this device is thermal, mechanical or dirt, so the list is short.

Problem	Likely cause	Fix
No click, however long you heat	Heating the tube or tip body instead of the cap, or a soft-flame lighter	Move the flame up to an inch off the cap, spinning slowly, with a butane jet. A genuine cap that still won't click after 15 seconds of correct heating is a warranty claim
A click, but almost no vapour	Drew too fast, or drew without exhaling first	Exhale fully, then draw slowly for five to eight seconds with the stem pinched
Combustion: smoke, ash, coughing	Held the flame past the click, or reheated without a cooldown	Flame off on the click for cycle one, and ten seconds between cycles. Empty the tip and start again, because a scorched bed never recovers
Spent herb black on one side, green on the other	You didn't spin while heating	A quarter-turn per second, continuously, from the moment the flame is on
Tastes of the last strain	Residue in the tip and condenser	Isopropyl bud the tip and condenser between jars
Draw far too airy	You haven't found the pinch yet	Pinch the silicone below the mouthpiece as you inhale, or drop the 10mm tip into a water piece
Click times vary wildly between sessions	Wind, a low torch or a cold device, all normal on low thermal mass	Stop counting and listen. Refill the torch when the flame looks lazy
Metallic taste or hot-stem smell	Machining oil on a new unit, or the flame is too far down the device	Run one empty cycle and wipe the metal on day one. After that, keep the flame on the cap

Warranty: DynaVap's cover is a 90-day money-back window, with DynaVap-made caps and tips covered. What can actually go wrong is a cap that won't click, a tip machined out of spec, or a device that arrives incomplete, and all three show up in week one. Email info@herbvape.co.uk with your order number and, for a click fault, a ten-second video with the sound on. Still stuck? The why isn't this working walkthrough covers the failure modes every device shares.

Parts and Accessories That Fit

• A spare single-flame torch: the DynaTorch is what came in your box, and the Honest single torch does the same job. Run it on triple-refined butane.
• A spare genuine cap. It's the only clever part and the only one that goes missing. A tethered Captive Cap turns "session over" into "hang on", and the BallR cap is the upgrade that most directly helps this device.
• Somewhere to put it down: a DynaStash ER at home, or the Slingstash for your pocket.
• A consistent grinder, such as the Flower Mill 2.5". On a bowl this small it's the difference between the device working and not.
• A 10mm water piece or the Polar Blast, the biggest single improvement available to this device.

Skip: multi-flame and triple-jet torches (too much heat, too fast, for a tip this light); aftermarket caps from marketplace sellers, because the click temperature is the product; DynaWax, since the B2 has no O-rings; and a titanium tip, which lowers thermal mass on the one device whose real weakness is low thermal mass. Spend that money on a ball cap instead.