furnace was purchased through home depot installed by mikes electric in 2010, We moved into home in 2015 noticed furnace wasn't running properly. They came out ran some tests and notified there top tech. in Vancouver who said it was installed wrong that the plenum was to small, in the mean time we have had a new blower and thumb drive plus 4 ignitors installed all in one year, mikes response was if you put in a new air conditioner that might fix the problem. All they had to do was fix the plenum but the owner said I was causing the problems myself. If you ever had a furnace installed by mikes and having problems look no further than the installation. Now I just found out the the primary heat exchanger is cracked have to get new furnace, this could have all been prevented by proper install. I contacted better business bureau but Mikes refused to even answer them, I definitely would never recommend this company read more