Heat Pumps

Ductless, Mini-Split Heat Pumps
Ductless, mini-split-system heat pumps (mini splits), as their name implies, do not have ducts. Therefore, they make good retrofit add-ons to houses or buildings with "non-ducted" heating systems, such as hydronic (hot water heat), radiant panels, and space heaters (wood, kerosene, propane). They can also be a good choice where extending or installing distribution ductwork is not feasible, or where additional heat is needed for specific areas 

How Ductless, Mini-Split Heat Pumps Work
Like standard air-source heat pumps, mini splits have two main components: an outdoor compressor/condenser, and an indoor air-handling unit. A conduit, which houses the power cable, refrigerant tubing, suction tubing, and a condensate drain, links the outdoor and indoor units. Some models have multiple air handling units that all connect to one outdoor unit. Each air handling unit is assigned to a different zone or room, which is controlled by its own thermostat.



Why consider a mini-split heat pump?

• An efficient heat pump can pay for itself through energy savings.
• It's a clean, comfortable, and convenient supplemental heat source.
• Heat pumps not only heat, they cool and dehumidify.
• Customers who heat with heat pumps may qualify for a lower electric heat delivery rate for all electricity used during the heating season. (Applies only to Residential Customers.) Please remember that while your heat pump is intended to offset your expenses from other fuel sources, your electricity usage will increase.


Will a heat pump help me reduce my heating cost?
• At today's prices, we estimate that using an efficient heat pump to supplement your existing heat source will reduce your overall heating costs. Calculate your energy savings using the Cost of Heating Comparison Calculator on the Efficiency Maine Website at the link below. Also check out the popular and efficient Fujitsu heat pump.