90 Percent Furnace In Attic

Even if your condensate problem is solved as described above the attic should still be conditioned space and.

90 percent furnace in attic. You can capture that heat with a high efficiency condensing furnace. If you don t have a crawl space or a basement then it can be a challenge to place a furnace on the ground floor of the structure. Someone installed a 90 furnace in a attic. On paper your furnace has more efficient specs.

This is what happens when the lowest bidder wins. You can heat trace your condensate trap or run the drain below the attic into a plenum space above a ceiling if available. It uses a venting system to extract that heat before venting. Josh january 23 2018 at 9 35 pm.

What is vented is a residual corrosive condensate of water and carbon dioxide. A furnace in the attic is a design that works for all homes. However if it s a single stage 95 furnace you probably would have saved on upfront costs and reduced your energy consumption even more if you had purchased a two stage 80 furnace instead. Say you ve got an 80 furnace in a vented attic and you replace it with a 95 furnace.

I understand that the proplem relates to freezing due to condensation but have received 2 conflicting opinions from the pros who have bid my job 2 in each camp. Dbarry14 mechanical 3 feb 11 16 19. Red flag this post. Since 90 furnaces expel water as a by product due to their combustion process it isn t an unreasonable fear of having a drain line freeze in an unconditioned attic and cause water damage.

You might not receive the same air movement benefits if the unit is in a garage either. I have a lot of them out there. What i have done to help people with 90 furnaces in the attic is get the drain down into the house as quickly as you can build a tent over the furnace with plastic sheeting and install a electric heater to thaw the furnace out cut a small hole in the supply duct to allow a some heat in the tent. A high efficiency condensing furnace can achieve efficiency ratings of 90 or above.

I m installing a 2 furnace system and am hoping someone can clear up whether it is appropriate to install a 90 furnace in an attic or if you should stick with a 80 unit for this application. 90 gas furnace installation in unconditioned attic. But pa is too cold imo. Even with a condensate pump you run the risk of the outlet still freezing causing it to overflow into your attic ceilings.

Also in montgomery county with gas furnace in attic. While i am in ga we get marginally cold enough here that a 90 furnace in the attic has to be carefully insulated or it will freeze up and quit heating. Locate the trap in this plenum space.