Hi I hope this message finds you allwell. I have a Navien NCB 240e. I have attached a photo. I recently had a plumber come do a service because I am not familiar with this boiler. They told me I should not have any black pipe on the boiler cause it will hurt the heating side of the boiler and I should have a Navi clean. I would like your opinion about having black pipe on the boiler. They want 2k to change out to copper. Should I do it is it worth it. Thanks.
Navien and Black pipe
- Thread starter Akarusso
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