Jazsta

Geo heat pump install is indeed very high. But air source heat pumps (both heat pump water heaters and heat pumps for heating/cooling) don’t have that issue and have similar performance, except in extreme climates where geo outperforms.

Yeah, those are all good points and certainly factor in. There are objective studies about human comfort preferences used for building design. I expect OPs question is a roundabout way to ultimately ask about comfort preferences.

I do 80F during the day and 78F at night in the pacific northwest US. It usually gets cold enough at night that opening windows will cool my house to the low 70s overnight. In the winter I have it set to 68F. I use ceiling fans and appropriate clothing to stay comfortable within those parameters.

I can see how it’s strange on the surface, but ultimately the carbon emissions wouldn’t be there if the polluting activity was not funded. So to whom would the carbon emissions be attributed otherwise? Just the CEO?

The study’s primary metric appears to include both supplier and producer emissions proportional to income and investments. What alternative do you suggest?

They literally need to meet airtightness requirements to meet the Passive House standard. It’s tested with a blower door test to check the air exchange rate at a prescribed negative pressure. You may be referring to a loose definition of passive house, instead of the standard, though. Airtightness is not “awful” as you suggested - mechanical ventilation provides fresh air

I can see why you would think that happens, but it either doesn’t happen, or it does and the shit water gets washed away by the continuous spray of clean water just like taking a shower.

I actually don’t mind it, especially in the summer. You can get heated ones that cost more. Maybe my anus isn’t that temperature sensitive?

How does getting in the shower save time over the 10 seconds it takes to spray your bhole?

A bidet. You can install it yourself in 20 minutes and enjoy a lifetime of cleaner buttholes and save on tp.