Running Fan On High Efficiency Furnace

In fact running your furnace fan constantly may even save you money since having more even temperatures in your home may result in the heat or air conditioner running less.

Running fan on high efficiency furnace.

This high efficiency venting system must be installed when you install the new furnace. While the condensing furnace is different in its design and repair needs it does have some similarities to a conventional furnace like a conventional furnace it takes in cold air from the house and runs it through an air filter. It moves the air with a circulating fan. This combination of carbon dioxide and water would damage the type of vents used in conventional systems which run vertically out of a home.

High efficiency furnaces. We re exceeding the cfm s we need by 1 235 875 360 cfm and we re running at 494 cfm ton. Let s look at our furnace manual. The pvc pipes are used for air intake exhaust gas and to remove the corrosive condensation resulting from the combustion process.

There are several other important aspects of high efficiency furnace venting. A typical ac fan motor uses about 500 watts when it s running. While keeping your fan on 24 7 may be more energy efficient there are a few downsides to leaving your fan on all of the time. Leaving the fan on 24 7 ensures cleaner air as the air is pulled through the filtration or uv light system.

How a high efficiency condensing furnace differs. Saving money comes down to the efficiency of the furnace. This blower motor should be delivering 1 235 cfm. And efficiency is determined by heat exchanger design.

Blocking the fresh air intake in a small or restricted space containing a furnace can lead to negative pressure and can cause a back draft of toxic fumes and carbon monoxide to flow back down the flue vent. The ductwork is not vented in the attic and we do have a high efficiency electronic air filter on the furnace. Other aspects of high efficiency furnace venting. Therefore the fan uses about 360 kwh per month in the on mode.

Cons to keeping fan continuously running. Therefore if you run the fan continuously for a 30 day month 720 hours you would use 360 000 watt hours 720 x 500 or 360 kilowatt hours kwh. And it has a gas burner with electronic ignition although condensing. Department of energy s doe s.

This can be better for people with allergies. If you have an efficient filter and a uv light you are constantly filtering and cleaning the air. It is also worth noting that starting july 3 2019 high efficiency motors are required by hvac manufacturers to comply with the u s. By running the furnace fan all the time you are also running air through your furnace filter constantly.

In the fan curves for a 60kbtu furnace in high black running at 0 9 iwc. In other words a 95 efficient furnace is 95 efficient whether its running in low or high fire.