Greenhouse heater

Wed, 13 May 2026 13:21:00 +0800

Introduction

So, here’s the greenhouse heater we put together. We started with a 400V, 2500W shortwave halogen lamp because we wanted something that could really deliver focused heat right where you need it—in those tight, enclosed growing spaces. This isn’t about slowly warming up the air around your plants. It’s about direct, radiant heat. You feel that warmth immediately, and you can dial in those predictable temperature zones exactly where your crops are asking for it.

Getting into the Details

Here’s the thing about the 400V supply—it keeps the current on the line lower. That means less voltage drop, even across those long greenhouse wiring runs. And that lets you get away with using smaller wires. The 2500W rating is all about packing a serious punch into a small tube. The 300mm length keeps that heat concentrated in the spot you’re aiming at. And the shortwave emission? That’s the magic. The energy goes straight to the plants and the soil, instead of just heating the air that rises up and disappears.

Greenhouse on Warm IR Patio Comfort

Greenhouse heater

Introduction

Getting into the Details