I just wanted to say thanks to Dave. I had my furnace break down yesterday. (being a contractor I purchased and installed it myself) I know Dave is very professional in his line of work and was hesitant to call due to not purchasing it from him. But with no heat and it was 21 degrees out I had no choice. Dave was fast at responding my call to which I was only looking for guidance on the repair. Within an hour he was at the house and he found the bad part. It is now replaced and the furnace runs perfectly. Thank you Dave. I would recommend anyone looking for a furnace to give you a call.