[quote="the snowman"]michaelanthony, I don't have pics, however, the Chubby Sr would be next to the current oil fired unit. The plan would be to tap into the cold air return as well and plumb that to the intake of the Chubby fan.
Sunny boy, The ducts are large enough so no real concern about moving air, however, they are uninsulated and there is my concern. I'm believing the heat loss of the uninsulated heat ducts would be greater than the Chubby would be able to overcome. The heat ducts do however only supply heat to the first story. The house has old fashioned registers in the floors to allow heat to rise into the second story. So, maybe just maybe since the trunk line is short and only pumping air to the first floor, the Chubby might be able to get the job done.....The snowman.[/quote]
Nothing ventured, nothing gained! I say go for it and let us know about your progress or distress, it's all a learning experience! You mention heat loss, how much could there be with two chubby's heating the basement