Why do I need dust caps for my car?
Depends on where you live. If you live in a place where the frost line does not extend to the level that the pipes will be at you are fine. If your frost level is lower than the level of your pipes then you will need to insulate.
Loose the box fan, which I am pleasantly surprised has not burned the house down. Get him a decent attic fan made for the job. Yeah, the detector is doing OK.
it should be insulated , so that the heat does not escape to heat the ground.
