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Never Cleaned Munchkin 80M
In 2005 I had a Munchkin 80M installed. For years it has run relatively flawlessly. So either nobody told me or I was not paying attention that you MUST clean a condensing boiler every year.
Today a tech came to replace the pressure release valve on the system and he asked me when the last time that it was cleaned or serviced that led down a road of problems.
I also recently had the intake replaced on the system because the boiler, although installed correctly, was pulling in its own exhaust. The tech said that this will also corrode the electrical system inside the boiler that will go any time now.
The pressure release valve was also filled with black goo because it has never been serviced.
So all in all he said that my system was on its last legs. He said that he would reluctant to even take it apart because that might cause more problems.
Is all of this dire information true? Is my boiler really beyond repair? Would a new system be any more efficient? To be honest the Current Muchkin did not reduce my gas bill at all when it was installed in my old and drafty house. I think a non-condensing boiler might be in order next time around...