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Recent content by daiosama

  1. daiosama

    A Heat Pump a good choice?

    SEER = Seasonal Energy Efficiency Ratio see wikipedia for the basics http://en.wikipedia.org/wiki/Seasonal_energy_efficiency_ratio see this artical for a little better understanding of really what SEER is http://www.fsec.ucf.edu/BLDG/pubs/hspf/ SEER is not COP. It is very losely realated...
  2. daiosama

    A Heat Pump a good choice?

    I did look into using a geothermal system, but I don't have much land around my house (.2 acre). A geothermal system needs nearly an acre for horizontal loops. Vertical loops are a possibility, but the price of vertical loop installation would have been and extra $3000-4000. The pay off would...
  3. daiosama

    A Heat Pump a good choice?

    Yes, there are a lot of days where the temperature is less than 38 deg. And it probably doesn't make sense to buy one, but that is the real question. How does one go about doing the cost analysis? Detroit has about 3 months where A/C is really nice to have. About 3 months where A/C and heat...
  4. daiosama

    A Heat Pump a good choice?

    I found an interesting study done by Florida Solar Energy Center. http://www.fsec.ucf.edu/BLDG/pubs/hspf/ Although it doesn't specifically answer my question, it does shed some light on HSPF. Apparently HSPF is based on climate zone IV. As you go to colder climes, the actual HSPF drops...
  5. daiosama

    A Heat Pump a good choice?

    I'm in the Detroit area and considering a heat pump as suplimental heat. The gov rates the heat pump I'm looking at at 8.5 HSPF with the AC side at 13 SEER. The point at which the system switches from heat pump to gas is 38 deg. outside temp. The cost of electricity is about $.09/kw. The...

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