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Williams Direct-Vent Gravity Wall Heater 30,000 BTUH, 66% AFUE, Natural Gas 3003822 - The Home Depot
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Amazon.com: Martin Direct Vent Propane Wall Furnace Heater for Indoor Homes or Offices with Built-in Thermostat and Glass Panel, 20,000 BTU : Tools & Home Improvement
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Empire DV40ELP High-Efficient Direct-Vent Wall Furnace Size: 40,000 Btu, Fuel: Liquid Propane - EmpireHeat.com
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