Heat Pump Information

SEER

(Seasonal Energy Efficiency Ratio)

  • Indicates how efficient a heat pump is
  • Look for a SEER rating of 14 or higher (Example: If you replace a heat pump from the early 1970’s with a SEER rating of 6 with a new one with a rating of 12, you will cut your heating and cooling costs in half!)
  • High SEER ratings increase the “up front” costs a little, but they pay you back many times over
  • Ask EMEPA about rebates on 14 SEER (or higher) heat pumps

COST

  • Remember the saying “you get what you pay for.”
  • The cheapest heat pump may not be the best deal for you
  • There are some very worthwhile features that will add cost to certain heat pumps – A few examples:
    • System failure sensors that shut down the entire system to prevent damage to expensive components
    • Power off timers that prevent a compressor from trying to restart under pressure during momentary power outages
    • Dual speed and/or dual capacity compressors which provide more flexibility and efficiency
    • Variable speed air handler motors
  • Some warranties are longer and more comprehensive
  • Discuss these features in detail with your contractor to decide which ones are right for you

DESIGN

  • Make sure that your HVAC contractor is performing a load calculation, according to the Air Conditioning Contractors of America
  • A Right-J load calculation accurately determines the proper size of a system
  • This is not a simple question of “tonnage.” Rather, it is a questions of how much and what type of load.
  • Any new system should be chosen from the heat pump manufacturer’s data and based on the Sensible Load and Latent Load characteristics of your home
  • EMEPA can provide a free Right-J load calculation for you or your contractor

DUCT

  • Duct work should be designed and sized according to A.C.C.A.
  • A Right-D calculation should provide /recommendations
  • This assures the proper sizing of HVAC duct thus avoiding airflow problems
  • Use flex duct ONLY in areas where rigid duct cannot be installed
  • Any duct not located in the interior air space should be fully insulated
  • Incorrect placement of supply registers can make the difference between a comfortable system and an uncomfortable one
  • ALL DUCT JOINT AND SEAMS SHOULD BE SEALED WITH MASTIC!
  • No longer is duct tape sufficient for seams, because duct tape will loose its adhesiveness with time
  • EMEPA can provide a free Right-D duct plan for you or your contractor

QUESTIONS

Contact EMEPA if you are considering a new HVAC system and want answers to your questions.