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SDMCF · 12-13-14, 03:19 AM

Have you seen this article?

I don't really understand the PassivHaus standard. They have a Specific Primary Energy Demand of ≤ 120 kWh/m2. Yr which seems to me very generous. Even my house - built in the 1890s- easily meets that. They also have a Specific Heating Demand of ≤ 15 kWh/m2. yr which seems comparatively strict, at least in our climate. My house is nowhere near that. I can't relate the 2 measures. In many climates the energy required for heating is far and away the biggest requirement, but it is a fairly small portion of the allowed total. I must be misunderstanding something I guess.

12-13-14, 03:19 AM	#2
SDMCF Apprentice EcoRenovator Join Date: Jul 2014 Location: Finland Posts: 125 Thanks: 5 Thanked 35 Times in 34 Posts	Have you seen this article? I don't really understand the PassivHaus standard. They have a Specific Primary Energy Demand of ≤ 120 kWh/m2. Yr which seems to me very generous. Even my house - built in the 1890s- easily meets that. They also have a Specific Heating Demand of ≤ 15 kWh/m2. yr which seems comparatively strict, at least in our climate. My house is nowhere near that. I can't relate the 2 measures. In many climates the energy required for heating is far and away the biggest requirement, but it is a fairly small portion of the allowed total. I must be misunderstanding something I guess.