Each one of my bedrooms has two cold air returns. One is located near the floor and has a grill that can be opened & closed. The one located near the ceiling is just a grill. I know hot air rises, cold air is heavier, etc. When should the bottom one be opened or closed-summer/winter seasons? ...

Should I install Cold air returns in my finished basement I have a force air 90 percent furnace Thanks Jim

Hi, while changing my old thermostat to a new one I Didn't realize I had the wrong circuit breaker tripped In my home. Turns out that the new thermostat is not Compatible to the wiring in my house(I think) and After hook up there was no power to the thermostat. I Put the old one back on with...

My old lennox hvac transformer blew, it was a Basler be11349rcd29, 120volt to 24 volt 50/60 cycle, it has a white and a black wire comeing from it, I want to add a fuse to the correct line, I don't know much about electric stuff, how or where do I find a correct and affordable replacement part,...

I would like to turn off my AC when the Patio door and or windows are left open for 3 min. I am currently using Homeseer along with the Gemini Napco Plugin. I can detect the opening and closing of the door and window zones and then create an event to trigger an X10 command after 3 minutes to a...