High Efficiency Furnace In Attic

There is a common misconception that this is not possible for high efficiency furnaces.

High efficiency furnace in attic.

If a high efficiency unit can hit 90 with a typical installation then you can achieve a rating of at least 65 with a standard installation. I didn t get much help from the gc or the hvac contractor he hired so i installed a clamp lamp with a 60 watt bulb to shine on the trap. If you re looking for efficiency you probably want to choose a gas furnace. In those days corrosion resistant material technology for gas furnaces was in its the furnace in the attic crawlspace garage or base ment for combustion.

It is a carrier heat pump system with a propane furnace backup. Bryant introduced the first high efficiency condensing gas furnace in the early 1980s. When you can use natural gas over electricity there is an opportunity to boost the efficiency rate of your furnace as well. Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space.

A furnace in the attic is a design that works for all homes. As expected since it s an oil furnace this is not the most energy efficient option out there. High efficiency furnaces aren t usually recommended for an attic. A mid efficiency furnace 80 and 90 afue vents exhaust gases out of the home typically through the roof.

In contrast modern high efficiency condensing furnaces exhaust much cooler gasses and need only plastic pipe materials such as pvc cpvc or abs for their exhaust vents some high efficiency furnaces also include a plastic pipe for intake area and all types. Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys. A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic. These days 95 afue is a common rating among new gas powered furnaces.

After the installation was done i found out that these high efficiency furnaces are not recommended in the attic because the condensate trap can freeze. A standard efficiency furnace provides 80 annual fuel utilization efficiency afue. High efficiency furnaces offer 90 or more afue. So a 95 furnace is more efficient than an 80.

It turns out that for many homes a very convenient place to place a furnace is in the attic. Hello everyone i recently had a new hvac system installed in my attic. Its sleek design allows the system to fit in most closets. Condensing furnace a high efficiency furnace 90 afue or higher utilizes a second heat exchanger to heat the air from condensed exhaust gases in order to reach higher efficiencies.

The furnace is a 58mvb120 120 high efficiency unit. In this type of furnace 20 of the energy produced by natural gas is expelled as exhaust. As long as you have a fully insulated attic there are rarely instances when we would advise against an attic installation.