Mini Split Installation in Brooklyn, NY
A new system here will heat from October through April and cool from June through September every year. Tell us about the house, and a licensed contractor who covers Kings County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work for a new mini-split in Kings County
Your mini-split will run most of the year here. Heat from October through April, cooling from June through September, only one month off in between. Winter nights average 29°F, and summer afternoons average 83°F, so the system has to hold up on both ends without much rest.
A new unit installed today has to meet the federal minimum for split-system heat pumps, 14.3 SEER2 for cooling and 7.5 HSPF2 for heating, if it was built on or after January 1, 2023. With storms known to knock out power in this area, it's also worth knowing a mini-split heat pump comes back on by itself once power is restored. No pilot to relight, no reset most owners need to think about.
- 7 months
- October through April, your system heats
- 4 months
- June through September, it cools
- 29°F
- the average winter night it heats against
- 83°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
- Is a mini split worth it?
- For most homes here, yes. Heat or cooling is needed 11 months of the year in this climate, and a mini split handles both from one system. Winter lows average 29°F and summer afternoons hit 83°F, so the system earns its keep across most of the year. It also lets you condition just the rooms you use, which a whole-house system can't do.
- How many rooms can a mini split cover?
- A single outdoor unit can run one indoor head or several. Multi-zone systems let one outdoor unit power several indoor heads, each one controlling its own room. Past a certain number of rooms, a second outdoor unit is usually the better route. A contractor will look at your home's layout and size the system to the rooms you want covered.
- Can a mini split heat a whole house?
- It can, if there are enough indoor heads placed room by room. A mini split with a head in each room can heat an entire home without any ductwork. Where it struggles is an open layout served by only one or two heads, since the heat won't reach closed-off rooms the way ducted air does. Winter lows here average 29°F from December through February, so a contractor can help you size the system to actually keep up on the coldest nights.

