H6 Manual - Hardy Heater
2019-10-29 · customers in the production of a top quality heater. With the purchase of this Hardy Heater, ... pressurized boiler with an atmospheric vent. This hot water is then circulated through ... On H3, H5, and H6 models domestic hot water is only available through the use of externally mounted heat exchanger kits. Heater Rating H3 –120, 000 BTU ...
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