We are in the process of converting our attic into 2 additional rooms. The area is about 750sq ft.
We are trying to look at some options for heating and cooling the attic. Our existing furnace/ac cannot accomidate the additional space. We have received prices for ductless systems, but we live in Massachusetts, and the winters can get very cold, so we would need to supplement the ductless system with electric baseboard and the few quotes we got were surprisingly high.
What are some of our options in adding an additional furnace and ductwork in the attic? I was told that the ductwork, running a gas line and adding a furnace in the attic is very expensive. Are there any other options?
There is no easy or cheap way to add heating and A/C. If your electricity rates are bearable I would use electric baseboard heaters. They are 99.9% foolproof, comfortable, quiet, require very little maintenance or repairs unlike a furnace. You save $$ on repairs, in the long run this offsets the extra cost of the energy they use. A/C can be done with window units (shakers) or ductless minisplits. Minisplits are quite expensive to install initially as they are Japanese imports . There are also some very nice modern portable A/C units which vent thru a window and are very quiet and popular.