I have to replace my outdated Hydronic system with a new heat pump. The house is 1431 sq ft rancher. There are 8 supplys 4" X 10"
There is one return locatedin the hallway and directly above the air handler in the crawl space which has a 14" X 14" grill but the actual sheet metal measuring 8" deep X 16" wide. I also have a 14" X 14" Return in the living room ceiling. Can someone let me know if the return in the hallway is sized correctly.Thanks.