Conduction vs Convection: I've Tested Both for 8 Years. Here's the Truth.

I Was Unbearable About This

In 2019, I was the worst kind of vaporizer enthusiast. I'd switched at 34 the year before — new convert energy, full zealot — and I turned a straightforward harm-reduction switch into a worldview.

"Oh, you're using a PAX? That's conduction."

— me, in 2019, with regret

Said with the tone of someone explaining that you'd accidentally ordered the house wine when there was a perfectly good Barolo on the menu.

I'd spent months on forums reading about how convection was the only way to properly vaporise cannabis. How conduction "roasted" your herb unevenly. How "true enthusiasts" only used devices with hot air delivery systems. How anything else was basically a step above combustion.

I'm sorry to anyone who had to listen to me during that period.

Then I spent the next seven years testing dozens of devices across every heating category. Conduction. Convection. Hybrid. Cheap ones, expensive ones, artisan ones, mass-produced ones. I tracked extraction quality, flavour progression, efficiency, ease of use. Sarah still has the spreadsheet. She did not ask for the spreadsheet.

And I discovered something annoying: the truth is much more boring than the forums suggest.

The heating method matters. A bit. Sometimes. But it's maybe the fourth or fifth most important factor in whether you'll enjoy a vaporizer. Implementation, build quality, airflow design, and your own technique all matter more.

A well-designed conduction vape beats a mediocre convection vape every single time. And the "pure" categories barely exist anymore anyway — almost everything good is a hybrid.

Let me explain what these terms actually mean, why the debate gets so tribal, and what you should actually care about instead.

The Basics (If You Need Them)

This article assumes you've read What Actually Happens Inside Your Vaporizer. Quick recap: vaporisation heats cannabis below combustion temperature (~233°C), releasing cannabinoids and terpenes as vapour without burning the plant material.

The question here is how that heat gets delivered to your herb. There are three approaches.

Conduction: The Hot Plate Method

How it works: Your ground cannabis sits directly on or against a heated surface — usually a metal or ceramic chamber. Heat transfers through direct contact, like cooking food in a frying pan.

The visual: Imagine putting your herb on a tiny hot plate. The material touching the plate heats first and fastest. The stuff further away heats more slowly.

Pros:

• Fast heat-up. Direct contact means quick energy transfer. Many conduction vapes reach temperature in 15–30 seconds.
• Simple, cheap to manufacture. Fewer components, less complexity. Budget-friendly options are often conduction-dominant.
• Forgiving on technique. Pack it, heat it, draw. No complex airflow management required.
• Dense vapour. The direct heat produces thick, visible clouds. If you're coming from smoking and miss seeing something when you exhale, conduction delivers.

Cons:

• Uneven extraction. The herb touching the hot walls cooks faster than the centre. Without stirring, you'll have dark brown edges and light centres.
• Flavour drops off faster. The outer layer starts to roast early in the session. First few draws taste great; later draws get harsh.
• Continuous cooking. The chamber stays hot whether you're drawing or not. Some passive extraction happens between hits.

Clear conduction examples: PAX Plus, PAX Mini, older XMAX budget devices, most simple oven-style pocket vapes where the herb sits directly on a heated chamber floor.

The DynaVap question: Technically conduction-dominant — the metal tip heats and transfers heat through the chamber walls to the herb. But the manual heating and technique requirements make it behave differently from electronic conduction vapes in practice.

Convection: The Hot Air Method

How it works: Air is heated separately from the herb chamber, then drawn or pushed through the cannabis. Heat transfers via moving hot air, like a convection oven cooking food more evenly than a traditional one.

The visual: Imagine a stream of hot air flowing through a pile of herb. Every surface gets touched by the same temperature air. More even heating throughout the load.

Pros:

• Even extraction. Hot air reaches all surfaces more equally. AVB tends to come out uniformly coloured.
• Better flavour preservation. The herb isn't sitting on a superheated surface. Volatile terpenes survive longer into the session.
• On-demand potential. Heat only flows when you draw (or activate). Less passive cooking between hits.
• Cleaner taste throughout. The flavour curve is flatter — less dramatic drop-off from first draw to last.

Cons:

• Slower heat-up (usually). Heating air and then using it to heat herb adds time. Some convection devices take 60–90+ seconds.
• Technique-sensitive. Draw speed affects extraction. Too fast = cool air, weak hits. Too slow = uneven heating. There's a learning curve.
• More complex, often pricier. Air path engineering is harder than a simple heated chamber.
• Wispy vapour. You'll exhale what looks like nothing and wonder if it worked. It did. But if you need visual confirmation, this takes getting used to.

Clear convection examples: Arizer Solo 2 (glass stem sits above heater, hot air rises through), Arizer Air MAX (same philosophy), Firefly 2+ (pure on-demand convection), Volcano (forced-air convection into bags).

Hybrid: The Modern Reality

Here's where it gets messy.

How it works: The herb chamber is heated (conduction component) AND hot air flows through the material (convection component). Most good modern portables do both.

Why this exists: Pure conduction has the uneven heating problem. Pure convection has the slow heat-up and technique sensitivity problems. Combining them addresses both: the heated chamber gets things started quickly, the hot air provides even extraction throughout.

The Mighty+ example: Storz & Bickel officially describes it as a "patented combination of convection and conduction." The chamber walls are heated (conduction), but the design also routes hot air through the material (convection).

What's the exact ratio? Nobody knows. No credible source publishes a breakdown. Independent reviewers describe it as "conduction to jump-start, convection to carry the session," but that's interpretation, not measurement.

Clear hybrid examples: Mighty+, Crafty+ V2 (same S&B heating system), Arizer Solo 3 v2 (hybrid heater with glass airpath), XMAX V3 Pro, most modern mid-to-high-end portables.

The Actual Truth: Implementation Wins

Right, here's what nearly a decade of obsessive testing taught me. Heating type explains tendencies:

• Conduction tends toward: faster heat-up, simpler design, cheaper price, less even extraction, faster flavour drop-off
• Convection tends toward: slower heat-up, better flavour, more even extraction, technique sensitivity
• Hybrid tends toward: best of both, but more complex and expensive

But tendencies aren't destiny.

A well-engineered conduction vape with good chamber geometry, thoughtful airflow, and quality materials will absolutely outperform a poorly designed convection vape in every metric that matters: flavour, efficiency, consistency, user satisfaction.

The PAX Plus is primarily conduction. It's also a good vaporizer that millions of people enjoy daily. The flavour is decent, the extraction is adequate, and it's incredibly easy to use.

Meanwhile, some "convection" devices I've tested were harsh, inefficient, and frustrating — because the air path was poorly designed, the temperature control was inconsistent, or the build quality was lacking.

I spent years obsessing over whether a vape was conduction or convection when I should have been asking: "Is this device well-designed and well-built?"

Jake's £299.99 Cautionary Tale

Quick detour, because it's the single most useful anecdote I've got on this topic.

My mate Jake had been trying to quit combusting for months. Two false starts. Third attempt, he decides the problem must be that his V3 Pro (~£79.99, pure hybrid) isn't "proper" enough, and orders a TinyMight 2 at £299.99 because the forums told him convection on-demand was the Real Experience.

It is, genuinely, a lovely device. Convection-dominant. Rapid heat-up. Elite extraction in the right hands.

It did not fix his problem.

Because his problem was never heating type. His problem was a fifteen-year habit of using spliffs to self-soothe after work, and no amount of hot-air engineering is a pharmacological intervention for anxiety. He used it twice. Put it in a drawer. Went back to the V3 Pro six weeks later when he tried again, properly, with technique and mindset — and he's been fine ever since.

The Sarah Blind Test

I wanted to prove — to myself as much as anyone — that my convection snobbery was justified. So I set up a test.

Three devices: PAX Plus (conduction), Solo 3 v2 (hybrid with glass airpath), Mighty+ (hybrid). Same cannabis, same grind, similar temperatures. Sarah would try each without knowing which was which. She'd rate flavour, smoothness, and overall quality.

Sarah, for the record, has tried cannabis exactly twice in her twenties and decided it wasn't for her. So she wasn't using the devices — she was sniffing vapour at the mouthpiece and rating flavour and smoothness on a 1–10 scale like a particularly reluctant wine taster. She agreed to it primarily to stop me asking. That is Sarah's default motivation for most of what she does in this house.

The result? She ranked them: Mighty+ first, Solo 3 v2 second, PAX Plus third. But the margins were tiny. Her actual feedback:

When I revealed which was which and explained that one was conduction and one was convection and one was hybrid, she looked at me with the specific expression she reserves for when I'm being tedious about something she doesn't care about.

She had a point. She has, in fairness, had a point for approximately eight years running.

The differences exist. I can taste them. Experienced users can taste them. But they're not the chasm the forums suggest. They're subtle variations, not different universes.

Debunking the Forum Myths

Myth 1: "Convection is always more efficient"

Reality: There's no widely cited, controlled lab study showing a dramatic efficiency gap between conduction and convection when both are run at appropriate temperatures with good technique.

Efficiency differences come from specific device design — oven geometry, airflow, temperature accuracy — not the abstract heating category. A well-designed conduction vape with proper chamber sizing can extract as thoroughly as a convection vape.

Myth 2: "Conduction combusts your herb"

Not really. Conduction at 190°C doesn't combust. Conduction at 260°C does — but so does convection at 260°C. Combustion is about temperature, not heating method.

What conduction can do is create hot spots where material touching the chamber wall reaches slightly higher temps than intended. But modern conduction vapes with decent temperature control keep this well below combustion range.

Myth 3: "Convection vapour is always cleaner"

Sort of, but not how you think. Convection tends to preserve volatile terpenes better early in the session because the herb isn't sitting on a superheated surface. This is real — I can taste the difference in first-draw flavour.

But "cleaner" in terms of what compounds you're inhaling? Both methods, at proper temperatures, are vaporising the same cannabinoids and terpenes from the same plant material. The vapour composition is similar. The flavour profile differs slightly; the fundamental chemistry doesn't.

Myth 4: "Real enthusiasts only use convection"

Come on. Real enthusiasts use whatever works for them.

Some of the most respected reviewers I know daily-drive hybrid devices like the Mighty+ and Solo 3 v2. The TinyMight 2 is convection-dominant and beloved — but it requires technique and attention that many users don't want to provide. (See: Jake.)

The "convection master race" thing is forum tribalism. It's people justifying their purchase by suggesting alternatives are inferior. It's tedious, and I was part of it, and I'm embarrassed.

What Should You Ask Instead?

Instead of "is this conduction or convection?" ask:

• "How does the vapour taste?" First draw through last draw. Does flavour hold, or crash after two hits?
• "How even is the extraction?" Does your AVB come out uniformly coloured, or dark at the edges with light centres?
• "How consistent is the experience?" Same pack, same temp, same results every time? Or variable depending on factors you can't identify?
• "How much technique does it require?" Are you willing to learn optimal draw speeds and pack densities? Or do you want to pack, press, and go?
• "What's the build quality like?" Materials in the air path? Chamber construction? Does it feel like it'll last?

These questions will tell you more about whether you'll enjoy a device than knowing its heating category ever will.

The Heating Type Cheat Sheet

If you still want guidance on what heating type means for your experience:

If You Want…	Consider…	Because…
Fastest heat-up, simplest use	Conduction or hybrid	Direct heat = quick energy transfer
Best early-session flavour	Convection-dominant	Less surface superheating preserves volatiles
Most even extraction	Convection or well-designed hybrid	Hot air reaches all surfaces more equally
Forgiving technique	Conduction or hybrid	Less draw-speed sensitivity
Dense, visible clouds	Conduction-forward	Direct heat produces thicker vapour
On-demand capability	Convection	Heat only when drawing
Budget-friendly options	Conduction	Simpler, cheaper to manufacture

These are starting points, not gospel.

What I Actually Use

After eight years of testing:

Daily driver: Solo 3 v2 (hybrid). This surprised me. I ran a 7-day rotation test and kept naturally reaching for it over everything else. The hybrid heater gives you conduction's quick start with convection's even extraction, the glass airpath keeps flavour pristine, and it handles both session and on-demand modes. Two vapes in one body.

The old faithful: Mighty+ (hybrid). Still brilliant. The Mighty+ was my daily driver for years and remains the device I hand to anyone who asks "what should I buy?" Completely foolproof, excellent vapour, built like a tank. It just got edged out by the Solo 3 v2's versatility.

Quick hits: TinyMight 2 (convection). Three-second heat-up, on-demand extraction. When I want one hit and done. Requires attention, rewards technique. I bought mine after Jake's went in a drawer. Unlike Jake's, mine gets used. Because, again — the device was never the variable.

Notice something? I use devices across all three categories. Because heating type is one factor among many, and different situations call for different tools.