Renewable heat / Green Building & Sustainable Home Renovation Information & Advice

Diagram showing the flow of heat and cooling in a modern district energy system.
Heating and cooling

What is District Energy and How Does it Work?

...Heating (4GDH): Characterized by low-temperature water (122-140°F (50-60°C)) which significantly reduces pipe heat loss and allows for the integration of low-grade renewable heat sources like geothermal, large-scale heat pumps, and solar thermal water heating 5th Generation District Heating and Cooling (5GDHC): Also kn...

Wood stove and biomass heat

The Definitive Guide to Wood Stoves for Airtight, High-Performance, and Passive Homes

...heating load. Consider a modern and efficient indoor wood-fired boiler, which sends most of the heat to a thermal storage tank, limiting direct room heat and preventing overheating. Wood stoves and mechanical ventilation with heat recovery (MVHR) In virtually all modern airtight homes, mechanical ventilation with Hea...