I spent some where around 10K with them with a new furnace /central air system and overhead furnace in my garage. We had a lot of trouble with the furnace but we did manage to get it to work in the end. The exhaust venting seemed to be the biggest issue but they work through it and it has been trouble free since. But they put a overhead furnace in my garage and it was nothing but trouble but once again we worked through it and they got it working by changing out a board. The problem is they installed it to close to the ceiling and the condensation in the exhaust pipe runs back to the furnace and leaks out the pipe into my garage were we have stuff stored! They promised to fix it but 6 months later still wont come out and wont answer calls! so i called them on my wife phone and they answered and said they have been busy and sorry for the delay but when i asked why he didn't return calls or messages he proceeded to tell me how to fix it myself! Than said they had to much trouble with this job and didn't make any money on this job so Gary (the owner) Than said i don't feel like i owe you anything do what ever you have to do!! In the cold stretch we had the bucket would be 1/4 full in several days!