There are calculations for this on internet. Comes down to a fairly equal and balanced upper ridge vent N.F.A. as compared to the soffit intakes N.F.A. net free area. This can be complicated with fire blocking and closed soffits and jurisdiction's interpretation.
I received Welding fume fever from a 5 minute weld job(galvanized coating).I didn’t put a fan on to direct fumes away, Or I must be getting more sensitive with age. Got home at 5 and went to bed till 9 am felt normal about 24 hours later.
I do this also, simple door bell button. The main wired switch does communicate with some mux
capability to the power head it seems. I did not lose any features with extra hardwired buttons.
I have some Gold tools from the 70s. From late grandfather he worked at the parts counter for Chrysler dealer for years ,its a socket set not as good looking as your stuff. Is it really gold?
New door seals as suggested above. I have had luck with the green hinge system also.
It puts spring pressure on the seals from the wheels ,it does wear the seals out faster though
Greenhingesystem
The Milwaukee and Dewalt design are much better. My Lincoln cracked the handle plastic crawling in and out of undercarriages and the batteries are troublesome.