SplitAtlas

Regional cost guide

Massachusetts mini-split cost guide

Much of Massachusetts is climate zone 5. This page uses the state residential electricity rate for the operating-cost example and national planning ranges for installed cost.

Residential rate
29.45 c/kWh
Rate source
EIA, April 2026

Climate Profile

State-level range

Much of Massachusetts is climate zone 5.

This is state-level framing from the launch location packet, not an address-level claim; ZIP or county verification is needed before local sizing.

Zone 5+ screen

Operating-Cost Example

Operating-cost example

$878per year

Example: 12k BTU/h system at 20 SEER2 / 10 HSPF2 using default annual operating hours.

Cooling

$48 monthly / 1,955.4 kWh yearly

Heating

$25 monthly / 1,024.8 kWh yearly

Capacity
12,000 BTU/h
Efficiency
SEER2 20 / HSPF2 10
Rate
29.45 c/kWh

Typical Sizes And Installed Cost

Installed-cost ranges below are national planning ranges from SplitAtlas cost assumptions. No state labor multipliers are applied yet.

National installed-cost ranges by capacity
SizeEquipmentDIY installedPro installedSource
9k BTU/h$900 to $1,900$1,670 to $5,015$3,145 to $8,615national planning range; no state labor multiplier applied
12k BTU/h$1,000 to $2,400$1,820 to $5,665$3,495 to $9,665national planning range; no state labor multiplier applied
18k BTU/h$1,400 to $3,200$2,320 to $6,715$4,295 to $11,515national planning range; no state labor multiplier applied
24k BTU/h$1,800 to $4,200$2,870 to $8,015$5,145 to $13,615national planning range; no state labor multiplier applied

Matched Cold-Climate Systems

Senville

Senville AURA 24k 230V (SENA-24HF)

Cooling

24,000BTU/h

Heating

29,000BTU/h

Low ambient

-22 F

Efficiency

SEER2 21 / HSPF2 13.5
Verified Jul 2026

Senville

Senville AURA 9k 230V (SENA-09HF)

Cooling

9,000BTU/h

Heating

12,000BTU/h

Low ambient

-22 F

Efficiency

SEER2 27.4 / HSPF2 12.5
Verified Jul 2026

Senville

Senville AURA 18k 230V (SENA-18HF)

Cooling

18,000BTU/h

Heating

18,000BTU/h

Low ambient

-22 F

Efficiency

SEER2 21.4 / HSPF2 11
Verified Jul 2026

MRCOOL

MRCOOL DIY Hyper Heat 5th Gen 18,000 BTU (230V)

Cooling

18,000BTU/h

Heating

18,000BTU/h

Low ambient

-22 F

Efficiency

SEER2 21.2 / HSPF2 11
Verified Jul 2026

Senville

Senville AURA 12k 230V (SENA-12HF)

Cooling

12,000BTU/h

Heating

12,000BTU/h

Low ambient

-22 F

Efficiency

SEER2 25.4 / HSPF2 10.5
Verified Jul 2026

GREE

GREE Vireo R32 9,000 BTU (230V)

Cooling

9,100BTU/h

Heating

10,500BTU/h

Low ambient

-22 F

Efficiency

SEER2 26 / HSPF2 10.4
Verified Jul 2026

Incentives

We only publish verified programs - none verified for Massachusetts yet; the federal 25C credit ended for installs after Dec 31, 2025.

Code Notes

  • Electrical circuit, disconnect, permit, and inspection requirements are local decisions.
  • Use published model electrical specs early, then confirm the final scope with a licensed electrician and local authority.

Sources