Furnace In Crawl Space Or Attic

The university of maine recommends proper venting of a crawl space to prevent radon gas buildup.

Furnace in crawl space or attic.

If the crawl space does not have proper ventilation radon concentrates in the trapped air inside the crawl space. Just installing the furnace in the attic crawl way of a single story home gives protection from most flooding. So why put an hvac system up in the attic at all. A horizontal furnace in a crawl space must also be elevated approximately 4 6 inches to allow clearance for the.

Condensate drain elevation space. Attic hvac systems save space. That means having it placed in the attic or a crawl space is a bad idea because you are increasing the risk of causing. Things seemed to be fine until we had a sustained cold and windy period.

In flood prone areas instaling a furnace in the attic provides protection. A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic. A basement is below and an attic is above the main part of the house. During the fall we disconnected the old furnace and decided to install a new one in our attic space running new ductwork.

Compare that with the daily 140 degree temperatures found in vented attics. High efficiency furnaces aren t usually recommended for an attic. Our house is a 2 story forced hot water system without ductwork. Older or historic homes for instance often featured much smaller heating systems than the modern ones we install today.

Rarely will a sealed foam insulated attic deviate more than 15 degrees from the living space temperatures below it. A two room addition on the 1st floor has limited attic space and a 4 crawl space. Even when furnaces are put on the main floor floodwaters often overrun the first floor causing severe damage to the unit. However not every home has a pre existing designated space for a system.

Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts. The hvac s air pickup is in the crawl space and it spreads the radon laden air into the house. An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan. As a result their designated space for a furnace is often no longer a.

Well mainly it s a way to save space. That moisture can freeze if it receives exposure to exceptionally cold temperatures. So when we have a choice we prefer hvac systems located under the house. Most homeowners should not place a condensing furnace in an unconditioned space because the unit will produce water as it heats the air.