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My direct vent gas heater has stood me well with harsh new england winters. As all the combustion air comes from and exits directly outdoors, its a very dry system. Dave
Tried electric - too expensiveTried Propane - everything goes rusty and I either boil or freezeNow running Kerosene heat exchanger, can completely control the heat and no excess moisture. Brilliant.
Tried Propane - everything goes rusty and I either boil or freeze