High Efficiency Furnace Makeup Air

Different classes of filters are available depending on your needs.

High efficiency furnace makeup air.

To get a sense of what this design entails first consider an 80 furnace. If your furnace lives inside a sealed attic or crawlspace high efficiency furnaces use a design that s well suited for those kinds of spaces. High efficiency furnaces offer 90 or more afue. 72 000 btu 95 afue natural liquid propane gas mobile home forced hot air down flow furnace today you ll find our high efficiency gas today you ll find our high efficiency gas furnaces in more manufactured homes than ever before.

Most condensing furnaces and some conventional furnaces use high efficiency air filtration media to improve indoor air quality. It uses the surrounding air that is the air inside your attic or crawlspace for combustion. In this type of furnace 20 of the energy produced by natural gas is expelled as exhaust. These filters need to be changed regularly in order to work effectively.

Bringing in fresh air for the entire house through the return air ducting on the furnace may help prevent a common problem when people upgrade their old heating appliances to high efficiency units. That s because more families are discovering only miller furnaces offer such incredible efficiency and comfort plus lots of other value added features. The efficiency of a 90 afue condensing furnace is not affected by obtaining the combustion air needed from the outside of the house. Department of energy a defining feature of high efficiency furnaces is sealed combustion a process by which outdoor makeup air is piped directly into the burner.

These days 95 afue is a common rating among new gas powered furnaces. Very few people realize that a certain volume of air is required for proper combustion of the furnace and gas water heater for that matter and not many contractors pay attention to this simple code requirement. This creates a dedicated source of oxygen and also a cleaner install as no other provisions need to be make for combustion air. Due to high efficiency furnaceshaving their own fresh air intake no air is drawn from inside your home.

According to the u s. In high efficiency furnaces the combustion air is generally piped in directly from the outside straight into the combustion chamber.