Thanks for sharing! These are indeed hard to get right and it's nice that you put your "failure" online. Thankfully the consolation prize for croissants that aren't laminated properly is delicious bread rolls, which I can say from experience.
The recovery time, aka first hour rating, should be in the specs for the models to find one that suits your needs. There's more detailed research on them available as well if you're so inclined.
You can, but not as a heat pump so you wouldn't get all the efficiency gains and it will very often end up being more expensive to run than gas tankless in the near term.
I agree lawns are dumb but from an environmental perspective they can be net carbon sinks, which I found surprising. Though they are still bad for other environmental reasons.
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.
It's time for this unfortunate headline to go away. I see a variation of this posted in nearly every thread about climate and emissions, a complex topic that the average person understandably doesn't know much about beyond some headline that stuck with them. Snopes has a good article debunking The Guardian's grossly misleading headline.
To see the actual sources of GHG emissions, at least in the US, the EPA has good resources. In short, agriculture is 10% (methane from cows fits here), transportation is 28%, electric power generation is 25% (fossil fuel power plants generating electricity), residential and commercial buildings are 13% (in practice, the building sector overall is about a third of emissions after attributing the emissions from the electric power slice. Residential and commercial buildings use 75% of the power generated in the US), and finally industry is 23% (again, a bit more factoring in their share of the electric power emissions. Industry uses about a quarter of all power in the US).
As you can see, emissions, or at least GHG emissions, are spread across the economy. Some industries are heavy polluters (e.g. cement manufacturing), but that's ultimately to make products for the market, even if they do have plenty of room to improve efficiency and reduce emissions, as do all other areas of the economy, especially buildings.
Thanks for sharing! These are indeed hard to get right and it's nice that you put your "failure" online. Thankfully the consolation prize for croissants that aren't laminated properly is delicious bread rolls, which I can say from experience.