Venting High Efficiency Furnace Through Wall

Condensing gas furnaces achieve their high levels of efficiency by adding another step to the fuel burning and venting process.

Venting high efficiency furnace through wall.

They include a second heat exchanger that reclaims additional heat from the system s exhaust gases before they are vented away. You need to make sure your furnace is venting properly. Don t confuse direct vent heating equipment with the through wall venting and air intake of high efficiency boilers and furnaces. That depends on whether you have a standard efficiency or a high efficiency furnace.

To avoid this problem high efficiency furnace venting requires the use of pvc pipes instead of metal pipes to remove the acidic condensate from your home. Both types of heating systems can vent horizontally through a building wall but the exhaust products of high efficiency or condensing boilers and furnaces are generally cool and have different venting and combustible clearance specifications. It could either go out the unused walled in chimney that the oil furnace was vented through or they could cut a hole in the concrete block wall and vent it out the side of the house. So which type of venting system should your furnace have.

Should my furnace flue pipe go through the roof or the side of the house. When this happens the exhaust gases cool and condense creating a slightly acidic by product. This high efficiency venting system must be installed when you install the new furnace. If it went out the chimney it would leave more headroom.

To combat this issue a high efficiency condensing furnace uses pvc pipes to extract the acidic water from your home. The basement ceiling is about 6 1 2 or 7 feet high. The venting system is installed at the same time as your high efficiency furnace. These pvc pipes are connected to the furnace and expelled outside.

If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof. The potential danger from the exhaust of a condensing furnace is two fold.