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Cost Effectiveness of New Hot Air Heating System

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  • Tom Ciccone
    Tom Ciccone Member Posts: 1
    Cost Effectiveness of New Hot Air Heating System

    My wife and I are retired, living in a 35 yr old home in Morgan Hill, CA; we plan to live here indefinitely. During our winter months the outside temperature can be 30 to 40 degrees F. Our home is approx. 2,600 sq/ft and has a crawl space where sheet metal ducts carry the hot air heat to each room. Is it cost effective to install insulation beneath our subfloor (3/4" plywood flooring topped with 3/4" hard wood flooring), and/or installing a new, more efficient, hot air heating system with new, better insulated ducts? The current ducts are insulated with some type of fiber-glass (?) material wrapped around their exterior, but many have been damaged over the years by those needing access to our crawl space.
  • Steamhead
    Steamhead Member Posts: 16,714
    Tom, if you're considering

    a new system, you can't do better than in-floor radiant hot-water heat. You will wonder how you survived with that scorched-air system.

    Sure, radiant is more expensive to install, but the greater comfort and lower energy costs are well worth it. Next best would be hot-water using cast-iron baseboards.

    You can leave the ducts in place and use them for your air-conditioning. And yes, I'd insulate everything well- energy costs will only go up.

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