Direct Vent Oil Furnace Exhaust
In direct vent applications this clearance distance must be in compliance with local building codes the requirements of the fuel gas supplier for the heating appliance in use and the appliance manufacturer s instructions.
Direct vent oil furnace exhaust. Masonry chimney flue vents. The exhaust temperature is about 90 95 degrees where it exits the house and only about 105 where it exits the furnace. Direct venting or side wall vent chimney and flue systems are a method of venting the exhaust gases from a heating appliance directly out through the side wall of a building while eliminating the need for a vertical chimney of any sort. Proper maintenance of vents prevents long term damage to the system.
This system normally requires an air flow proving switch to confirm that the required draft is present before combustion begins. We often have problems with the air flow when it is either very windy out seems to blow out the furnace and no wind seems there s not enough air flow. For non direct vent applications that is side wall venting only the required clearance is 7 feet. Gas or oil fired side wall power vents are provided by several manufacturers listed at the end of this article.
This article discusses the diagnosis of wind related problems at direct vent systems. Question is how far does the exhaust pipe have to be from a window or door. The thermo products line features warm air furnaces heat pumps central air conditioning systems and a full line of related accessories. The function of vents is releasing gases while the oil furnace converts the oil to heat for the home.
Am building a new room to get the unreliable oil furnace out of the crawlspace. To avoid putting up a new chimney it s downhill from where the new room is going am liking the direct vent furnaces. It provides a direct intake vent that brings outside air to the sealed combustion chamber with one pipe while a second vent pipe provides sealed venting of exhaust gases back to the outside of your house. Direct venting systems eliminate the need for a chimney.
Air flow problems with benjamin direct vent oil fired furnace oct 28 2014 barry said. The problem with a direct vent power vent of a non condensing furnace under 90 efficient or so is that the exhaust is still very acidic can damage things nearby and if the mixture is off at all it can start staining things nearby. These products are sold directly to installing contractors and fuel dealers. For a gas fireplace exhaust termination cap 3 feet 91cm above if within 10 feet 3m horizontally.
Thermo pride is the premium brand in the furnace and central air conditioning market. Direct venting or side wall vent chimney and flue systems are a method of venting the exhaust gases from a heating appliance directly out through the side wall of a building while eliminating the need for a vertical chimney of any sort. The two pipe system is most common in home heating applications. Direct vent oil furnace exhaust.