Efficient / Discussions

...efficient Passive House wall, if your intention is to reduce your carbon footprint, starts with choosing materials with low-embodied energy.  Different insulation materials will have different R values per inch - which affects the energy required to operate a Passive House - but that doesn’t address the embodied carbon...

...efficient house where a few 100W incandescent light bulbs makes a difference, or you could have had a ton of incandescent bulbs in an older, less efficient house. But normally a home heating system is designed to match the worst weather (and more) of a specific climate. So something may be buggy if you’re finding yours...