Originally Posted by terpfan_
Would a tube in tube have been a better idea than plate xchanger? I will never go back to a regular water heater. My tankless rinnia was one my best investments.
Doesn't matter. He doesn't have enough boiler for more then 6 GPM at a 70°F temp rise no matter what heat exchanger he uses.
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How many times must one fix something before it is fixed?