Hayward Heater H-series Millivolt Ignition Natural Gas 150,000 BTU P/N: H1501 Description Tures on all millivolt heaters include rust-resistant water path with polymer header assembly and a rapid-heat combustion chamber. Ignition: Millivolt Thermostat: Single Gas Type : Natural BTU Input: 150,000 Features on all millivolt heaters include rust-resistant water path with polymer header assembly and rapid-heat combustion chamber.


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