Suburban furnace min. air return grill size?
While looking at our furnace and heating setup today in our TT, it looks like I can easily do some modification to the furnace return air grill location to improve the heating and I could also turn th...
Forum Discussion
Installing a blower in the return duct can allow you to use a smaller opening. Someone who specifies forced air cooling and heating systems can help you figure it out. The key is the cubic feet of air per minute going into the heater.
