Which Is Better Hvac In Attic Or Crawl Space

09 06 2007 08 20 am 9 dcmcm5.

Which is better hvac in attic or crawl space.

I vote for the attic. Good luck getting better cooling in the upstairs in an old home using a basement hvac system than one in an attic. I d lean toward a conditioned crawl because of the sum total of benefits by making the space conditioned. A crawl space by nature is a special area of the home having both benefits and detractions when locating a unit.

Supply air from the hvac system if you encapsulate the crawl space adding a little bit of air from the hvac system is probably the most common method used. Quit writing papers and go try a seat of your pants experiment. The crawl space is an unconditioned space. It s probably also worst for most climates if the hvac systems and ductwork are located in the crawl space.

Crawlspaces are good spots for hvac systems too. Sure if you can find enough space and afford the large cost to have someone poorly carve up the inside of your house to get the proper sized ductwork through the house. Here in central sc almost the same climate as you some of the local electric companies will not give the energy good cents discount if the ductwork is in the attic. This means that like an attic or unfinished basement you don t heat and cool it.

A better option for the equipment and the health of the structure and its occupants is to make whichever space you choose a conditioned space and put the unit and ductwork in it. Strap ducts out of insulation with 3 ductstraps per specifications. 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. Air conditioner furnace in attic installations cost less.

Installing a heating ventilation and air conditioning hvac unit in a crawl space presents an entire series of pros and cons. Seal supply boxes with mastic. Attic hvac system saves space. Knowing the disadvantages of attic install and the crawl space install.

When kept dry and conditioned a basement the ideal spot for your hvac set up. If you have ductwork in your crawl space the temperature of the duct will be the same as the temperature of the crawl space. A hvac unit in a crawl space presents special concerns. Ductwork in the attic as opposed to the crawl space.