Tim Pederson, lead hydronic expert for Cardinal Heating & Air Conditioning installs a Hydrofill NA570924 water-treatment unit at a commercial job site near Madison, Wisconsin. The unit removes minerals from water to make it better for the hydronic boiler systems.
Concerned about a growing number of premature heat-exchanger failures in customers' high-efficiency boilers, management at Cardinal Heating & Air Conditioning huddled with hydronic-system manufacturers and distributors to determine the cause.
The verdict: Excess minerals...
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