Hvac In Crawl Space Vs Attic

Attic hvac systems save space.

Hvac in crawl space vs attic.

So when we have a choice we prefer hvac systems located under the house. You ll also free up a closet. 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. I vote for the attic.

Seal supply boxes with mastic. 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. The problem with uninsulated ductwork.

If you have ductwork in your crawl space the temperature of the duct will be the same as the temperature of the. Strap ducts out of insulation with 3 ductstraps per specifications. So why put an hvac system up in the attic at all. The biggest advantage of having an attic furnace is that it s a space saver.

An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan. The hvac s air pickup is in the crawl space and it spreads the radon laden air into the house. The university of maine recommends proper venting of a crawl space to prevent radon gas buildup. A two room addition on the 1st floor has limited attic space and a 4 crawl space.

The space is taken up by plumbing hvac and electrical wiring. 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. 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.

Duct through corner of closet from attic back to crawl to circulate dry attic air and close the foundation vents. Some things to consider about attic vs. Place 40 ft drainage pipe with holes across center floor of dirt crawl space attach this to duct line to attic space with an inline 90 cfm silent exhaust fan at the other end of attic run a 6 in. Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.

View profile view forum posts view forum threads new guest join date sep 2007 posts 2 post likes. Animals love duct board flex 09 06 2007 02 11 pm 12. Knowing the disadvantages of attic install and the crawl space install. O is air conditioning the 1st floor effective with floor venting if i run ductwork in the basement.

There s usually nothing up in an attic aside from some stored items so a furnace won t take up useful space. It s easy to see your point about eliminating ductwork from the attic. This means that like an attic or unfinished basement you don t heat and cool it. However i have two questions if i want to centrally air condition my entire house.