Hvac In Crawl Space Vs Attic

However i have two questions if i want to centrally air condition my entire house.

Hvac in crawl space vs attic.

If you have ductwork in your crawl space the temperature of the duct will be the same as the temperature of the. It s easy to see your point about eliminating ductwork from the attic. Rarely will a sealed foam insulated attic deviate more than 15 degrees from the living space temperatures below it. There s usually nothing up in an attic aside from some stored items so a furnace won t take up useful space.

Attic hvac systems save space. The problem with uninsulated ductwork. Duct through corner of closet from attic back to crawl to circulate dry attic air and close the foundation vents. Animals love duct board flex 09 06 2007 02 11 pm 12.

Knowing the disadvantages of attic install and the crawl space install. If the crawl space does not have proper ventilation radon concentrates in the trapped air inside the crawl space. Well mainly it s a way to save space. O is air conditioning the 1st floor effective with floor venting if i run ductwork in the basement.

This means that like an attic or unfinished basement you don t heat and cool it. So why put an hvac system up in the attic at all. Some things to consider about attic vs. If you use duct board flex in crawl space you will have problems.

The space is taken up by plumbing hvac and electrical wiring. Seal supply boxes with mastic. So when we have a choice we prefer hvac systems located under the house. 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. I vote for the attic. Compare that with the daily 140 degree temperatures found in vented attics. Strap ducts out of insulation with 3 ductstraps per specifications.

An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan. The biggest advantage of having an attic furnace is that it s a space saver. Insulate and air seal the floor with open cell foam put ductwork and mechanicals in the attic install a radiant barrier and mastic seal the ducts. The university of maine recommends proper venting of a crawl space to prevent radon gas buildup.

If your attic is finished and the hvac system is in excellent condition you might be able to avoid this disadvantage but most houses do not have an attic that is suitable for full time living. The crawl space is an unconditioned 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 damage to the equipment. View profile view forum posts view forum threads new guest join date sep 2007 posts 2 post likes.