Laws or not I have a concrete beam layout with concrete slabs foundation with tiles throughout the ground floor area and they are cold to the feet all day.
I like lots of light and windows and open windows for fresh air.
An 18 BTU cooler unit is not expensive to run when it's sleep time until then airflow and fans and light is what we like.
Shading from overhanging roof areas and insulated ceilings are all that was needed in our case.
My Isuzu runs on anything, ethanol can be a booster to an engine.
I didn't really notice any difference in performance when B20 was available, the only difference was in price of filling a 65 litre truck tank full.
I do pass some cameras on my way to CM and they face both ways.
By the time It notice them it's to late.
Nothing yet though but i guess on that part of road 90 is a bit slow anyhow.