❗️This is a game changer ‼️ A terracotta pot greenhouse heater uses candles or a heat source to warm unglazed terracotta pots, which absorb and slowly radiate heat, acting as a thermal mass to maintain a more stable, warmer microclimate for plants, though its actual heating power is modest and it's best used with other methods like insulation for significant frost protection. 🌡️ How It Works This DIY heater uses basic principles of thermal mass and radiant heat transfer: 1. Heat Source Inside: