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Hot Water Loop - Boiler Warranty
My first floor has steam radiators, and second floor has no legitimate heat system.
Considering a hot water loop off our steam boiler and running baseboard to the 2nd floor.
Our plumber said the issue with this is that when we need to replace the boiler, the warranty will be void because of the hot water loop.
Is this true, even if it's a closed loop?
Thank you for your help.