Quote Originally Posted by DrAndy
You are prob right about those plastics BG, but they usually look nasty
For me, it has to look OK, but functionality is of the top order.
And we did have one window that was thermal pane double glazed and was the back door and about 2 feet square and aluminum framed and led out of the mud room to the back yard and was the door we used all the time, it would frost on the frame when it was real cold, and the room was not fully heated and only got heat thru a vent in the attic of the room to keep the water reservoir from freezing and keep the batterys warm as they were in the mud room.
But if the heat was uncomfortable, we would leave the back door into that room open and that aluminum would sweat and water would drip, so there PVC or wood was a must.
We kept a kettle on the wood fired air tite heater for room humidity to stop a dry air cough as below zero there is no humidity in the air.