Introduction
Here’s the thing about keeping a greenhouse warm: you don’t want to heat the whole sky. You want heat where it matters—on the plants. That’s exactly why we built these electric heaters. They’re compact, but they punch way above their weight. Instead of pushing around air, they send out focused infrared warmth that hits your plants and soil straight on. No wasted energy. Just steady, plant-level heat that keeps your little world stable.
Technical Deep-Dive
We set these heaters up on 400V because it plays nice with industrial power. That means you can run longer cables without worrying about voltage drop or overloaded lines. Inside a 300mm tube, we pack 2500W of output. It’s a tight fit, but that’s the point—lots of power in a small footprint. The shortwave infrared profile comes on fast, so when your thermostat calls for heat, you get it immediately. And because it’s direct heat, your energy goes right where you need it: the plants. Not the empty air around them.
Material & Design
The quartz envelope is filled with halogen to keep the filament temperature steady and stretch the life of the unit. We also shaped the coating to steer the energy toward the wavelengths plants and water absorb best. Installation is straightforward, too. The R7s bi-pin connector locks in cleanly, without tools, and carries the full current safely. You wire it up, set the mounting distance, and let the geometry do the rest. Simple. Solid. Done.
Application & Benefits
In the greenhouse, this setup shines when you need fast, localized warmth—especially for seedlings and cuttings that can’t handle the cold. Because the output is concentrated, you can space things precisely and heat only the zones you need, without oversizing the whole system. Now, a heads-up: that 2500W density is powerful, so you’ll want proper clearance and airflow around the heater. Plan your mounting height and ventilation, and this thing becomes a reliable, controllable heat source you can count on, day after day.