What is the best heating and ventilation system for a passive solar home?
I am designing Eco-friendly passive solar homes in southern New Hampshire. These homes will use active solar as well. I do not want to use fossil fuels on this project. I am leaning towards Thermomax tubes for solar electricity and solar hot water due to the fact that they work on cloudy days. Sizing the system would be for a family of four which would use an 80 gallon hot water tank. I am looking at a Tempra tankless hot water heater as well. Has anyone used these products and what do you think of them. What other systems would work best in this scenario?
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