I have an 1800 s.f. ranch and the Revolution, when running correctly, heats my entire house. I recently had 2" of rigid insulation put on the exterior, all new windows and doors and new vinyl siding and it cut my pellet use from around 7 tons to around 3 tons. It is installed in the basement and tied into the duct work for the entire house. I am running 2 thermostats, Pellet on 72, and Propane on 64. The propane never runs. I am currently on Program 2, Heat Setting 3 and it is maintaining 74 in the house, even with the thermostat setting. I need to turn it down a bit but we are still getting 40's during the day and 20's at night.
I have the supply and return for the pellet furnace run into the cold air side of the propane furnace with a damper in between. The damper is closed about 60% when running the pellet furnace due to the CFM Differences between the 2 fans. The pellet stove is approx 1000 cfm and the propane is approx 1400 cfm. So 1000 CFM runs through the 12" diameter pipe and the additional 400 cfm is allowed to pass by and just cycles. The second picture is the relay's I have set up so when the pellet fan comes on it turns the fan on in propane furnace...
Future improvements:
Motorized damper so when the pellet furnace goes off and the propane furnace comes on it opens the damper in the return and bypasses the pellet furnace completely.
Another set of relays so I can turn on the humidifier with the pellet furnace controls.
![DSC00127.JPG DSC00127.JPG](https://www.hearth.com/talk/data/attachments/79/79901-578d4fd76d2f6c19d3c64e9f2b881ce4.jpg)
![DSC00126.JPG DSC00126.JPG](https://www.hearth.com/talk/data/attachments/79/79902-1b5ac427f0dfa1da6b7fd3ba5cc1dbb0.jpg)
I have the supply and return for the pellet furnace run into the cold air side of the propane furnace with a damper in between. The damper is closed about 60% when running the pellet furnace due to the CFM Differences between the 2 fans. The pellet stove is approx 1000 cfm and the propane is approx 1400 cfm. So 1000 CFM runs through the 12" diameter pipe and the additional 400 cfm is allowed to pass by and just cycles. The second picture is the relay's I have set up so when the pellet fan comes on it turns the fan on in propane furnace...
Future improvements:
Motorized damper so when the pellet furnace goes off and the propane furnace comes on it opens the damper in the return and bypasses the pellet furnace completely.
Another set of relays so I can turn on the humidifier with the pellet furnace controls.
![DSC00127.JPG DSC00127.JPG](https://www.hearth.com/talk/data/attachments/79/79901-578d4fd76d2f6c19d3c64e9f2b881ce4.jpg)
![DSC00126.JPG DSC00126.JPG](https://www.hearth.com/talk/data/attachments/79/79902-1b5ac427f0dfa1da6b7fd3ba5cc1dbb0.jpg)