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      • Heat Pump Installation
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249 878 7006

Platinum Eco Air
  • EcoAir HomePage
  • Heating
    • Furnace Repair
    • Furnace Installation
    • Fireplace Repair
    • Fire Place Installation
  • Cooling
    • A/C Repair
    • A/C Installation
    • Heat Pump Repair
    • Heat Pump Installation
    • Heat Pump Price FAQs
  • Water Heaters
    • Water Heater Repair
    • Water Heater Installation
    • TankLess Repair
    • Tankless Installation
  • SystemCare
    • Maintenance Plans
  • HVAC Blog
  • Contact us

Still Have Questions about Heat pumps?

Ask Us Now!

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Heat pump questions we hear from homeowners in Greater Sudbury — with clear, expert advice you can t

You're in the right place. Our Heat Pump FAQ covers questions homeowners in Greater Sudbury ask about heat pumps, furnaces, air conditioners, and water heaters. 


Whether you're looking for information on heat pump installation, furnace maintenance, AC repair, or troubleshooting tips, EcoAirHVAC provides honest answers and expert advice you can trust. 

Heating &Cooling -- FAQ --

Frequently Asked Questions

Please reach us at EcoAirHvac@hotmail.com if you cannot find an answer to your question.

  • Heating Mode: A heat pump extracts heat from the outside air (even in cold weather) and moves it indoors.
  • Cooling Mode: It removes heat from indoors and releases it outside.


 Heat pumps are efficient because they transfer heat instead of generating it. Key metrics include:

  • COP: Compares heat transferred to electrical power input.
  • EER: Cooling efficiency.
  • HSPF: Heating efficiency over a season.
  • SEER: Cooling efficiency over a season.


  • Refrigerant: Absorbs, transports, and releases heat, changing phases (liquid, gas, vapor).
  • Reversing Valve: Switches refrigerant flow between heating and cooling modes.
  • Coils: Heat transfer between refrigerant and air.
  • Evaporator: Where refrigerant absorbs heat indoors.
  • Compressor: Compresses refrigerant, raising its temperature.
  • Condenser: Releases heat outdoors.
  • Expansion Device: Lowers refrigerant pressure and temperature.
  • Outdoor Unit: Transfers heat to/from the outdoor air.
  • Indoor Coil: Transfers heat to/from indoor air.
  • Plenum: Distributes air in ducted systems.


  1. Expansion Device: Low-pressure liquid turns into vapor.
  2. Outdoor Coil (Evaporator): Absorbs outdoor heat.
  3. Compressor: Compresses vapor, raising its temperature.
  4. Indoor Coil (Condenser): Transfers heat indoors. As it gets colder outside, heat pumps lose efficiency and need supplemental heating.


  • Expansion Device: Low-pressure liquid turns into vapor.
  • Indoor Coil (Evaporator): Absorbs heat indoors.
  • Compressor: Compresses vapor, raising its temperature.
  • Outdoor Coil (Condenser): Releases heat outdoors. The system also dehumidifies air.


 In cold weather, frost may build on the outdoor coil, reducing efficiency. The defrost cycle:

  • Switches to cooling mode to melt frost.
  • Turns off the outdoor fan to help melt frost faster.
  • Uses demand-frost control (activates only when needed) or time-temperature defrost (set intervals).


  • Single-Speed: Operates at a fixed capacity, meeting minimum efficiency standards.
  • Variable-Speed: Adjusts capacity to match heating/cooling needs for better efficiency.
  • Cold Climate Heat Pumps: Designed for colder areas, they have higher efficiency and better performance at low temperatures.


Proper sizing is crucial. A professional should calculate heating and cooling needs using a recognized method (e.g., CSA F280-12). An undersized system uses more supplemental heat, while an oversized system may cause inefficiency and discomfort.


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Heat Pump FAQ for Greater Sudbury Homeowners

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  • TankLess Repair
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