First the warning: If you seal too well, the exhaust from the furnace or hot water heater will not naturally go up the chimney, but instead stay around. The by product of burning Natural Gas and Other fuels is Carbon…
First the warning: If you seal too well, the exhaust from the furnace or hot water heater will not naturally go up the chimney, but instead stay around. The by product of burning Natural Gas and Other fuels is Carbon…