We paid to have a Quietside boiler install in our home. In less than a year we are on our 2nd boiler. They have literally rotted off the wall. The contractor has washed it's hands of us and Quietside has not responded. We have not had on demand hot water for 2 months. We have to run our heat to have hot water. It's just a matter of time before we no longer have heat. Any suggestions?