I had a new tankless water heater installed with a condensing furnaceThe service men installed it wrong and had to come back twice to fix itAfter that we had no hot water and had a service callThey charged me $and left me with no hot waterThey said I needed parts installed and an additional fee would incurI took the part off myself and cleaned it and the pipeIt has been working better than ever since
I had a new tankless water heater installed with a condensing furnaceThe service men installed it wrong and had to come back twice to fix itAfter that we had no hot water and had a service callThey charged me $and left me with no hot waterThey said I needed parts installed and an additional fee would incurI took the part off myself and cleaned it and the pipeIt has been working better than ever since