Compost Heating
Harness the thermal energy of composting your organic waste.
Generates Constant, 24/7 Heat: Microbial activity inside a well-constructed pile creates steady, reliable energy. Unlike solar power, a compost heater produces heat consistently all day and all night, completely unaffected by clouds, rain, or darkness.
Provides Free Domestic Hot Water: By running flexible water pipes directly through the core of a large woodchip pile, the system acts as a highly efficient heat exchanger, warming cold intake water up to temperatures of 50–60°C (120–140°F) for showers, laundry, or underfloor heating.
Dual-Purpose System (Energy then Soil): It provides excellent utility throughout its entire lifecycle. Once the pile finally cools down after 12 to 18 months of continuous heating, you are left with tons of premium, fully mature, nutrient-dense compost ready for agricultural or garden use.
Perfect for Extending the Greenhouse Season: They are exceptionally useful for heating greenhouses during freezing winters. Placing a compost heating loop beneath seedling benches keeps the soil perfectly warm, allowing you to grow food out of season with zero electricity costs.
Utilizes Abundant, Low-Value Waste Materials: The systems run beautifully on materials that are often discarded or cleared as fire hazards, such as shredded brushwood, woodchips, arborist waste, and autumn leaves, turning local biowaste into a valuable energy asset.


![20200511_Compost Heater Diagram [SAWA Version]12 x18](https://sawa-architecture.org/app/uploads/20200511_Compost-Heater-Diagram-SAWA-Version12-x18-1600x900.jpg)

