We started our furnace project for the addition about 3 weeks ago. We received a bid from a professional furnace installation company that came to $12,000. We decided to go it alone, using the furnace in the existing house as a template where the instructions that came with our furnace (bought on EBay) were a bit opaque. The first major step was cutting a hole in the side of our new $1200 furnace

Michael, the intrepid!  Date: October 24th. — Michael, the intrepid! Date: October 24th.

We couldn't find a hot or cold air plenum (this project has expanded my vocabulary), so Michael ordered custom made ones, again through EBay.

Cold air out the side. Hot air out the top. Duct work to get cold air returned to furnace started.

We had to plan where to put hot and cold air vents in the floor, and then figure out how to get ducts to those areas without interfering with future plumbing and keeping register covers from high traffic areas.

I managed to get the holes in the floor to be square with the world...and just the right size so the covers don't rattle around too much.

I chose pretty covers for Irene's area. She likes them!

We could do about 2 of these in a day...and we were working hard! We did take a couple of days to get the PVC pipes installed (to vent to the outside) , and another day to get a gas line into the furnace.

Almost done!  Still needs a thermostat and condensate pump attached, but those are relatively minor projects. — Almost done! Still needs a thermostat and condensate pump attached, but those are relatively minor projects.

We were also slowed down a bit because we kept miscounting needed parts and so had to go to the store every three days or so. We also had to take a day out, move the young ducks up from the pond to their winter quarters, and harvest the last two "extra" drakes. We put the last duct (not duck) into the living room today. Yay! I can get back to being a lawyer for a couple of hours!