Which Is Better Hvac In Attic Or Crawl Space

Knowing the disadvantages of attic install and the crawl space install.

Which is better hvac in attic or crawl space.

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. 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. Attic hvac system saves space.

If you have ductwork in your crawl space the temperature of the duct will be the same as the temperature of the crawl space. When kept dry and conditioned a basement the ideal spot for your hvac set up. Seal supply boxes with mastic. Quit writing papers and go try a seat of your pants experiment.

There are problems with the ductwork in the crawlspace too but the system will typically be more energy efficient. Air conditioner furnace in attic installations cost less. Except when the system is left to the elements and neglected of regular systematic maintenance. 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. 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. This means that like an attic or unfinished basement you don t heat and cool it.

I vote for the attic. 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. Strap ducts out of insulation with 3 ductstraps per specifications. In the winter a crawl space can be significantly colder than the living spaces of your home.

Crawlspaces are good spots for hvac systems too. A hvac unit in a crawl space presents special concerns. 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. 09 06 2007 08 20 am 9 dcmcm5.