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Was this plumber honest and fair with me?
I recently had my 10 year old tankless water heater replaced with a similar model by a professional plumber.
The plumbers didn’t replace every part though. Actually, they used many of the old parts and I was wondering if it was acceptable. They did install 2 new vent adapters at the top of the unit (but that came with the unit) yet they purchased and added new stainless steel vents until it reached the nearby ceiling. However, that is all that was purchased.
They didn't replace any new vent parts past initial ceiling wall. Parts of the vent that went through a small section of open space before going through the roof and the outside terminal were the original parts. I asked if this was ok and they said that since the original vents were made from stainless steel, the exhaust vents and terminal didn’t need to be replaced. In my mind, I was also wondering if they should have checked the outside flashing and other possible problems but they didn't do it.
They also ended up using the same old pressure relief valves, the same copper tubing and black pipe. They didn't test the incoming gas pressure and the exhaust CO2 content in order to adjust speed of the internal fan. Etc.
I was wondering if this was normal or else I was taken advantage of.
Thanks everyone for your help. I just pray i didn't get scammed. I want to believe that people are inherently good but these days, it's making it hard. Can you guys tell me bluntly what the real deal is?
Thanks you guys.