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Ryland · 02-07-12, 07:01 PM

I'm not sure if tempering the incoming air is a good idea, I have often thought that the cooler the incoming air the more heat you can pull off the heat exchanger resulting in less heat that is vented out with the exhaust.
If your furnace is anything like mine, the fan draws 100's of watts, mine is around 600 watts, furnace fans tend to be one of the single largest electrical draws in the house, turning the thermostat down and using a 600 watt heat lamp would keep you more comfortable.
Adding mass to your duct work, like a cement block really could help, putting that mass in the room on or near the heat register would increase the thermal mass of the room and help even out the fluctuation.

02-07-12, 07:01 PM	#7
Ryland Master EcoRenovator Join Date: Mar 2009 Location: Western Wisconsin. Posts: 913 Thanks: 127 Thanked 82 Times in 71 Posts	I'm not sure if tempering the incoming air is a good idea, I have often thought that the cooler the incoming air the more heat you can pull off the heat exchanger resulting in less heat that is vented out with the exhaust. If your furnace is anything like mine, the fan draws 100's of watts, mine is around 600 watts, furnace fans tend to be one of the single largest electrical draws in the house, turning the thermostat down and using a 600 watt heat lamp would keep you more comfortable. Adding mass to your duct work, like a cement block really could help, putting that mass in the room on or near the heat register would increase the thermal mass of the room and help even out the fluctuation.