Search results

the return opening inside the house is 30"x16" = 480 sq". the reccommended return opening for a 3 ton central ac is 20"x20" = 400 sq". i'm pretty confident that cooling an extra room will affect the rest of the house very much. it's the coldest ac i've ever seen and i'm sure the tile and wood...

hi kok, thanks for the welcome and for answering my question! since the ductboard box top hadn't been used i wasn't sure if i could. those duct fans are cheap but the bend to the register will be so slight that i doubt i'll need one. but doable if need be. take care and thanks again, kib49

hi, my question is; can i use the top of the ductboard box for a drop? my disabled brother is coming to live with my family in a couple weeks. we've built a nice garage room for him and i need your help to finish up. all my HVAC ducting comes out the sides of the ductboard box (plenum?) in...

hi, i built an insulated room in my garage in florida. my brother has fallen on hard times and he will be living in there very soon. the ductboard box in the attic has no more room on the sides, to cut a new hole for a new drop. my question is;:confused: can i cut a hole in the top of the...