I am an owner/builder of an off-grid solar home and this company had the best bid on my radiant heating system. I worked with a number of contractors on construction of my home and this is one of the few that gave me A+ quality. They took care of an issue that we had with an inspector by adding vents that were not in the initial plan without any extra charge, and provided free service on a minor problem on the furnace that was my fault. They were very responsive. Their install was efficient and on-time, they had no problems installing off-grid, and there were no problems with leaks (the vacuum test held over a period of a couple of months, this was not the case with my plumbing, done through another contractor). Our first year with the design has worked well and we have been more than satisfied with this company (5 star rating).