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Heat Pump FAQs


What is a heat pump?

Ductless mini split heat pump Harpswell, Maine

A heat pump is a heating and air conditioning system comprised of an outside condenser and an inside evaporator, which alternately takes the hot or cold air from the outside and transfers it to the inside (or vice-versa, depending on which mode the unit is on-heating or cooling).


How do they work?

Fujitsu Heat Pump Phippsburg, Maine

The heat pump contains a very cold refrigerant liquid in the outside condenser (-40 degrees Farenheit) that absorbs heat molecules from the outside air and transfers them through the inside unit.  Imagine we have a shoe box that is -20 F inside, it is 100 cubic inches and has 20 heat molecules evenly spaced out.  If we were able to extract the same twenty heat molecules and place them in a smaller space the tempature would rise because the molecules would be closer together. The same would be true if we were to close the sides of the shoe box in.  These systems, by way of absorption, move the abundant heat molecules from the outside air to the small-in-comparison homes we live in. 


How much do they cost?

The price of each unit fluctuates and there is a wide range of products so pricing varies as well.  All quotes we do include the labor and materials required to install the unit.  Depending on the size of the home, its heating requirements, layout and floor plan, and any existing installation, additional units may be required to optimize heat usage and savings.  One of the many advantages of installing a heat pump system in your home is that should you need multiple units, installation can occur in stages, one unit at a time, to take the sting out of the cost of installing multiple units at one time.  

Efficiency Maine is now offering rebates through the Home Energy Savings Program on the installation of eligible high efficiency ductless heat pumps.  Some models are eligible for rebates ranging from $500.00 to $750.00.


Will a heat pump look ugly inside my home?

Heat pump Portland Maine

A heat pump can easily blend into the interior of your home. We will work with you to make sure that we place the interior evaporator where it works best for air flow and appearance.


Is the outside condenser unit ugly and obtrusive?

Mini split heat pump Brunswick, Maine

 The condenser on this home can be found in the lower left corner of the back of the house. We work with the property owners to place the condenser in an area that meets the operational requirements and appeals to the owner as well.


How loud are heat pumps?

Ductless mini split heat pumps are quiet

The Fujitsu heat pumps we install run at approximately 45 decibels, equivalent to a person's whisper. You will likely not notice your heat pump any more than you would your refrigerator when it cycles.


What if I have more technical questions?

Northeast Heat Pumps installs Fujitsu units in Southern Maine

You are welcome to download the Fujitsu brochure here.










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