I would suggest trying to contact the manufacturer of these boxes. One name that is common is Carlon. They are now a part of Thomas and Betts. Another idea is to use shallow metal boxes that can be ganged. They have removable sides and "ganged" to form as many gangs as needed. they are T &...

I recently had a service tech out to look at my low heat problem. Temp at closest register was 75. The tech checked the gas pressure and found it to be OK. He found the burner oriface partially plugged and cleaned it. He found a spider nest in the burner. After starting the furnace he commented that...