Mini Split Installation in Bangor, ME
A new system here will heat from September through May and cool from July through July every year. Tell us about the house, and a licensed contractor who covers Penobscot County will get in touch.
Tell us about the job
It takes about a minute.
A mini-split here works nine months a year, sometimes ten
Homes in Penobscot County need heat nine months a year, September through May, and winter nights average 10°F in December through January and February. That is nine months of a compressor holding a room against real cold, not a mild chill. Come July, the same unit switches over and cools against afternoons averaging 77°F.
A mini-split installed now has to meet 14.3 SEER2 for cooling and 7.5 HSPF2 for heating, the federal minimum for split-system heat pumps since January 2023. More than half the homes here still heat with fuel oil, so a mini-split sized for this climate is doing work an oil furnace used to do alone.
- 9 months
- September through May, your system heats
- 1 months
- July through July, it cools
- 10°F
- the average winter night it heats against
- 77°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- Is a mini split worth it?
- For most Bangor homes, yes, especially as a way to add heat or cooling to a space that does not have it. Winters here run cold, down to 10°F on average overnight through the season, and a cold climate mini split is built to keep pulling heat from outside air at those temperatures. Over half the homes in this area still heat with fuel oil, and a mini split gives you a second heat source that does not depend on oil deliveries. Whether it is worth it for your house depends on the space you are heating and what you are replacing, so a contractor should look at the specific rooms before you decide.
- How many rooms can a mini split cover?
- A single indoor head heats and cools the room it is mounted in, and a multi-zone system runs several indoor heads off one outdoor unit, each set to its own room. How many rooms one system can actually cover depends on the size of each room, how the house is laid out, and how much heat or cooling each space needs. A contractor sizes the system by walking the rooms, not by a room count alone.
- Can a mini split heat a whole house?
- It can, if it is sized and placed for that job, but it takes planning in a place like Bangor where homes need heat from September through May. A whole-house setup usually means a multi-zone system with an indoor head in each main room, sized so the outdoor unit can keep up when it is 10°F outside. A contractor can tell you what your house needs room by room.