Why is installing a ductless mini-split heat pump a great idea?

Heat Pump outdoor unit
What is a heat pump and how does it work?
Heat pumps are heating and cooling systems that work with electricity instead of oil, natural gas or propane. Unlike traditional heating systems that generate heat via combustion of gas or oil, heat pumps transfer heat from the outside air into your house, using the same technology as an air conditioning unit.
Heat pumps are 2.5x - 4x more efficient at heating your home than a furnace
In winter, liquid refrigerant in the heat pump absorbs heat from the cold outdoor air and is transformed into a gas. This gas is compressed, raising its temperature. The hot gas travels to the indoor unit, where it warms the indoor air. As the gas cools and condenses back into a liquid, it returns outdoors, ready to absorb more heat and restart the cycle. Unlike furnaces or boilers, which generate heat by burning fuel or using electrical resistance, heat pumps move existing heat from outdoors to indoors, which makes them a more energy-efficient heating solution.
How Heat Pumps Heat
How Heat Pump Cools
The same heat pump is also a very efficient cooling system
Heat pumps can also cool your home thanks to a component called the reversing valve. This part changes the direction of the refrigerant flow, enabling the heat pump to operate in reverse. Instead of absorbing heat from outside, the pump now takes in heat from your home's interior, just like an air conditioner. The warm indoor air is absorbed by the refrigerant, then transferred outside and released. The refrigerant, now cooled, returns inside to absorb more heat, continuing the cycle to keep your home comfortably cool.
What are "ductless" and "mini-split" systems?
You’ll hear the terms “mini split” and “ductless heat pump” used to describe heating and cooling systems. What exactly do these terms mean? As described above, a heat pump is a device that uses electricity to transfer heat energy between the indoors and outdoors. Ductless heat pumps don’t need ducts to distribute forced air. Instead they have separate wall-or floor-mounted heads for each room they serve. This allows great flexibility in design, as well as zone control. It also makes it easy to install them in houses with radiators or baseboard heat.
Mini split heat pumps are “split”--they have separate indoor and outdoor units. This makes them much quieter and more efficient than window air conditioners. “Mini” refers to the fact that these systems were originally designed to serve a single room or small apartment. Modern mini splits are capable of heating and cooling even the largest homes.
Ductless mini-split system with an indoor unit, outdoor unit and remote
At Housitive, we focus exclusively on ductless mini-splits because we believe specialization allows us to be exceptionally good and efficient at installing and servicing these systems.

You'll get
3 key benefits from ductless mini-splits

Operating savings

Mini-splits are significantly more efficient in cooling than window units as they use significantly less electricity to produce the same cooling output. Mini-splits are typically more efficient than central AC systems because there are no ducts that can further contribute to heat gain/loss.
When in heating mode, mini-splits transfer heat instead of converting it from fuel or oil. Fossil fuel furnaces and boilers have <100% efficiency, meaning for 1 unit of energy, they produce less than 1 unit of heat. However, on average, heat pumps operate at 250-400% efficiency, meaning for 1 unit of energy, they can deliver 2.5-4x units of heat because they are transferring it from outside the home to inside, rather than converting it. This creates a real opportunity to save on energy bills for many homes, especially for high cost oil, propane and electrical resistance homes.


Mini-splits provide the most flexible zone control of all equipment where each indoor unit can be separately set to the ideal temperature for cooling and heating.
In the summer, mini splits can also dehumidify your home. It’s an essential part of the cooling process and a mini-split is more effective at maintaining a comfortable humidity than many air conditioners due to its efficiency.
When heating, mini-splits can improve comfort by modulating their heat output to match the needs of your house. Compared to conventional single-stage heating systems, the variable-capacity heat pump reduces hot and cold spots.
Heat pumps can also improve indoor air quality. Since they don't rely on combustion, heat pumps don't emit any pollutants or fumes. They also provide a more consistent, even temperature throughout the building, which can reduce the growth of mold and bacteria.


Heat pumps are an environmentally-friendly choice, since they operate 2.5-4x+ more efficiently than gas- or oil-fired systems. This means they produce fewer greenhouse emissions than traditional heating systems. And as America's electricity grid increasingly shifts to renewables, so does your carbon footprint.
Join millions of Americans cooling and heating their homes with a ductless mini-split heat pump. You can qualify for a tax credit up to $2,000 and other rebates.

Currently, we are only serving Suffolk County, NY (excluding Easthampton)

Which homes are most suitable for a ductless mini-split?

  • You are planning to replace your air conditioning or install your first air conditioning unit
    --> You can get cooling and heating in one system, qualify for up to $2,000 tax credits and other rebates, AND also use the mini-split in the winter to reduce your heating bills
  • You need an upgrade in your cooling or heating system and you don't have proper ducts or your ducts are not in good condition
  • You have a specific room that requires a new or supplemental cooling and heating system
  • Your would like to set up more zones in your home to control heating and cooling independently
  • You have oil, propane or electrical resistance as your main heating fuel and you are looking to save on your heating bills
  • Your smell oil from your furnace and want to improve air quality in your home