Infrared vs Convection Heaters: What to Stock in 2025

We get this question at least twice a week from buyers who are trying to figure out which heater line to commit to. It usually comes from someone who has already been burned by a slow-moving SKU, and they don't want to repeat that mistake. So let's cut through the marketing noise and talk about infrared vs convection heaters from a factory perspective, because the differences matter more for your inventory than most sales reps will tell you.

The Core Difference Is Not What You Think

Both types make a room feel warmer. The difference is how they get there. Convection heaters pull cold air in, heat it with a coil or element, and push it back out. They warm the air itself. Infrared heaters emit radiation that heats objects and people directly, not the air in between. That's why infrared feels like standing in the sun on a cold day, while convection feels like the whole room slowly getting less chilly.

For a distributor, that distinction drives everything: who buys it, where they use it, and what they complain about in reviews.

Where Infrared Wins (and Loses)

Infrared heaters are the best electric heater for garage or workshop use, hands down. Garages are drafty, poorly insulated, and have concrete floors that soak up heat. A convection heater will run for an hour and still leave you shivering. Infrared heats the workbench, the tools, your hands, and the floor. It feels effective within minutes. That's the same reason infrared is popular in warehouses and on loading docks.

But infrared has a real weakness: it doesn't warm the air evenly. If you stand behind a shelf or a partition, you're cold. The heat stops at the first solid object. So for a bedroom or a living room where people move around, infrared can feel patchy. And if someone wants a silent electric heater for a nursery or office, infrared units often have a small fan to circulate air, which adds noise. Not all, but many.

Convection Is the Workhorse for Whole-Room Comfort

Oil filled radiator vs convection heater is a common comparison we hear, but from a sourcing standpoint, they're cousins. Both are convection-based. The oil-filled radiator just uses oil as a thermal reservoir to smooth out the heat output. A pure convection panel with a bare element responds faster, but it also cycles on and off more.

For a bedroom, a bathroom, or a living space where people sit still for hours, a wall mounted electric heater with a good thermostat is the practical choice. It keeps the air at a set temperature, doesn't glow red, and doesn't dry out the room as aggressively as infrared. The downside is that it takes longer to bring a cold room up to temp. If your customer is the type who wants instant heat, they'll be disappointed.

That's why we make both. And why you should carry both. But not in equal proportions.

What Your Customers Actually Search For

Look at the search data. A big chunk of buyers type in energy efficient electric heater or cheap to run electric heater. Those people are almost always comparing running costs, not just upfront price. Here's a number that might surprise you: a 1500W infrared heater and a 1500W convection heater use exactly the same electricity per hour. The difference is that infrared heats a person faster, so they turn it off sooner. But if they need to heat a whole room evenly, the convection unit will run longer and cost more in practice.

Another popular search is electric heater for bathroom IP24. That's a safety spec, not a heating technology. Both infrared and convection can be built to IP24, but convection panels are easier to make fully splash-proof because they have no exposed glowing element. We've made thousands of IP24 convection panels for bathroom use. They're a steady seller, especially in the UK and Europe where bathroom regulations are strict.

The Factory Reality Check

From our line, here's what we see. Infrared heaters are simpler, with fewer parts. That means lower cost and fewer warranty claims. But they also have a higher rate of "it doesn't heat the whole room" complaints from users who misunderstand the technology. Convection units have more electronics, especially if you add wifi smart electric heater features, which means more potential failure points. But they get better reviews for overall comfort.

If you're a private label brand, your review score is your lifeblood. So think about the use case you're targeting. If you want a product for garages, workshops, or outdoor patios, go infrared. If you're aiming at bedrooms, living rooms, or offices, go convection. If you try to sell one type for everything, you'll get returns.

One more thing: don't ignore the low wattage electric heater category. We see a growing demand for 400W-700W convection panels for small rooms, RVs, and campervans. A 12v electric heater is a niche but real request, though most campervan buyers end up with a 220-240V unit for when they're plugged in. That's a separate product line with different certifications.

A Concrete Comparison to Guide Your Stocking

Let's say you're stocking for a market where winters are cold but not extreme, like the UK. A standard 1500W convection panel can heat about 15-20 square meters, assuming average insulation. An infrared heater with the same wattage will make a person feel warm in a larger drafty space, but it won't keep the whole room at 20°C. For a 10 square meter bedroom, a 1000W convection unit is enough. For a 30 square meter workshop, you need either a 2000W infrared or a 2000W fan heater.

Our standard MOQ is 200 pcs per model. Lead time is 25-35 days for convection panels, 15-25 days for simpler infrared units. If you want custom colors, logos, or a specific thermostat curve, add 10 days for tooling and samples. We can do CE, RoHS, UKCA, and ERP depending on your target market. Don't skip the ERP if you're selling in Europe, it's required for energy labeling.

The Honest Takeaway

Don't put all your money on one technology. Stock a convection panel line for indoor comfort and an infrared line for spot heating. If you have to pick one to start, pick convection. It's easier to sell, easier to explain, and gets fewer returns from confused customers. Infrared is a great second SKU for a specific buyer, not your main volume. And always check what your competitors' reviews complain about. That's your best market research.

If you want to talk specs or MOQs, we're open to that. But you already know how to find us.