I am planning to build a 3 bedroom one and a half storey house in the north of Scotland. I plan to use a 200mm SIPs structure with additional insulation on the inside of the panels. The SIPs company claim that the insulation values of the completed house will exceed passive house standards.
My main heating sources will be: solar gain, solar thermal panels for domestic hot water, and a 4/5 kilowatt wood burner with back boiler. The SIPs company are convinced that the house will not require any further heating. I’m not sure that I’m ready to take that `leap of faith. On the other hand, I don’t want to waste money on an expensive renewable heating system if I don’t need it. I would be grateful to hear from anyone who is also considering this approach or has actual experience of building and living in a passive-type house.