7/4/2023 0 Comments Gas heater cover wall![]() ![]() Nothing wrong with mixing vented and ventless heaters in the home. Consider using vented heaters where you can, on an exterior wall with nothing outside that might interfere. I'll repeat the point on humidity since it seems other answers consider this might be a problem. These are still sold and are in a way a kind of ventless heater too. Of course a dehumidifier is an option.įor an extra off the grid and/or retro look consider gas lights. The humidity can be controlled by varying output from vented units and ventless units. Then to mitigate the humidity put in vented units that exhaust outdoors. ![]() I don't know how much humidity they produce so I'd suggest investigating that. If by chance one such heater fails then the rest should be able to still keep up with perhaps one room a bit chilled. I like them as they can add humidity to the space, and no worries on trying to run a vent out or electricity in. You'll need multiples of them to cover the corners of the house and get enough heating power to stay warm. In my opinion they'd work great as primary heat. Because they need electricity they won't run in a power outage. These save on fuel costs but have more complex install by needing electricity. There are forced vent styles that are more efficient, operating like a 90%+ efficiency furnace. These operate like a draft style water heater and so have efficiency like them, something like 85%. If you have access to an exterior wall for vented heaters a pipe can go through the wall for combustion air and exhaust. The burning of the fuel will produce humidity, which may be bad or good depending on how well humidity is controlled by other means. They are considered quite safe with use of a catalytic converter to minimize unburned fuel (also known as soot, volatile organic chemicals, and carbon monoxide). Natural gas ventless heat is very efficient in that none of the heat is lost to the outdoor exhaust.
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