Which way does furnace air flow. Sometimes there is a humidifier mounted on the furnace or the return air ductwork.
L q c p ρ t h t r 1 where.
Furnace air flow. The cold returning air enters back through the air filter into the furnace to complete another heating loop. The air flow arrow almost certainly will point at the furnace not away from it. If your home has a basement chances are your installer will recommend an upflow furnace or if the ceiling is very low a horizontal flow model.
If you notice something wrong such as the furnace not blowing hot air properly please take it seriously and call for furnace service from our. We include examples of manufacturer s air flow rate or cfm data for hvac equipment like air conditioners and furnaces. Required air flow rate in an air heating system can be calculated as.
A gradual loss of air flow from the furnace could be due to a dirty and clogged air filter. What s the right furnace filter direction. Forced air furnaces recirculate air through a home.
A furnace with the right air flow configuration for your home s design will keep you more comfortable and help control your heating costs. The heated air then cools down throughout your home and returns to the furnace through return air grills and ductwork. Pushing air cool or heated in and pulling spent air back in for another cycle.
L air flow rate m 3 s q heat loss covered by the air heating system kw c p specific heat air 1 005 kj kg o c ρ density of air 1 2 kg m 3. If you are looking at a furnace filter find the arrow that. Louis furnace installation and repair contractor.
If the filter sat after the furnace there would be potential hazards associated with it like possibility of fire hot air hitting a cardboard frame and release of nasty substances due to overheating. If you have any questions about how air flows through a furnace or if you d like a heating system serviced or installed in your home contact jerry kelly your st. As the air filter fills up with dirt and dust it can begin to restrict the flow of air.
Air flow rate data. Not only does that make it difficult for your furnace to acquire oxygen for combustion but it can also cause the furnace to overheat. Heating cycle finishes it stays there until it cools back down when the whole cycle begins again.
From dirty air ducts blocked damper valves damaged duct runs to an insufficient numbers of return air vents there are a variety of signs that may indicate a furnace air flow issue in your home. This article defines air flow rate or cubic feet per minute cfm as the term is used to describe building air conditioners heating systems or building air movement rates. So air flows from your ducts through the filter and into the furnace.
Required air volume in an air heating system.