In this video, I show you how to make a DIY terracotta pot heater that works great as a cheap greenhouse heater in cold weather. Instead of just putting a candle under a clay pot, this improved design uses vegetable shortening and candle wicks to create a safer, longer-lasting source of heat.

This simple terracotta heater is an inexpensive way to add extra warmth to a small greenhouse, shed, or workspace during the winter months. If you're searching for greenhouse heating ideas that don't rely on expensive electric or gas systems, this project is an easy place to start. Want more?

I also made a video with 15 different DIY methods to heat your greenhouse in winter - check it out for even more backyard resilience ideas.