|reply to misiek |
Re: External air supply for an 80% AFUE furnace?
said by misiek:Before you invest in a larger furnace may want to check out improved insulation if you have not already done so. That should pay big dividends.
This furnace had trouble keeping up with really cold temperatures.
If what mix said is true you can buy some time by replacing the motor yourself and seeing what effect better insulation has on energy demand.