Mass Save AHRI details

Wells WOS-18QUA/230

ENERGY STAR Certified · Mass Save Eligible HP - Mini or Multi Split

Mass Save rebate eligible

Mass Save® rebates for this qualified system

Green Flow Solution can help confirm the equipment match, project eligibility, utility requirements, and rebate paperwork before installation or replacement.

Claim your rebates today
Mass Save Heat Pump Leader logo

Brand and components

Indoor, outdoor, and system model details

Outdoor unit brandWells
Outdoor unit modelWOS-18QUA/230
Indoor unit brandWells
Indoor unit modelsWIFC-18MOC/230
Model nameWOS Series
Model numberWOS-18QUA/230

Performance specs

Capacity and efficiency

Cooling Capacity (BTUH)
18000
Heating Capacity 47F (BTUH)
18000
Heating Capacity 17F (BTUH)
13700
Heating Capacity 5F (BTUH)
12800
Seer2
22.30
HSPF2 Region IV
10.40
EER2 AFull 95F
12.50
COP at 5F
2.05
Refrigerant Type
R-454B

Eligibility

Rebates and certifications

Mass Save QPL
Yes
ENERGY STAR Certified
Yes
ENERGY STAR Cold Climate Certified
Yes

Explore your options

Similar systems to compare

Scroll horizontally or use the arrow keys to explore.

Same cooling capacity

Trane

Mini / multi-split heat pump

4TXK3818A10NU** — Trane AHRI 9150125

AHRI 9150125

Indoor model / pattern
4MXW3818A10NU**
Cooling · BTU/h
18,000
SEER2
22.00
HSPF2
10.00

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower HSPF2 (Region IV): 10.00 vs. 10.40
  • Different refrigerant: R-410A (current: R-454B).
View AHRI
Higher SEER2

Carrier

Mini / multi-split heat pump

37MARAQ18AA3 — Carrier AHRI 215323830

AHRI 215323830

Indoor model / pattern
45MCFAQ18XA3
Cooling · BTU/h
18,000
SEER2
22.40
HSPF2
10.40

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 22.40 vs. 22.30
View AHRI
Higher SEER2

TOSHIBA CARRIER

Mini / multi-split heat pump

RAV-BP181AT2P-UL — TOSHIBA CARRIER AHRI 216415458

AHRI 216415458

Indoor model / pattern
RAV-HB181KRTP-UL
Cooling · BTU/h
18,000
SEER2
23.80
HSPF2
10.40

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 23.80 vs. 22.30
  • Lower heating capacity at 17°F: 12,500 BTU/h.
View AHRI
Higher SEER2

Lennox

Mini / multi-split heat pump

LISH018000P431-D — Lennox AHRI 207825600

AHRI 207825600

Indoor model / pattern
LIUH018180P431-C
Cooling · BTU/h
18,000
SEER2
23.00
HSPF2
10.00

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower HSPF2 (Region IV): 10.00 vs. 10.40
  • Different refrigerant: R-410A (current: R-454B).
  • Lower heating capacity at 17°F: 12,800 BTU/h.
View AHRI
Higher SEER2

Lennox

Mini / multi-split heat pump

MPC018S4S-1P — Lennox AHRI 207683510

AHRI 207683510

Indoor model / pattern
MCFB018S4-2P
Cooling · BTU/h
18,000
SEER2
23.00
HSPF2
9.90

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower HSPF2 (Region IV): 9.90 vs. 10.40
  • Different refrigerant: R-410A (current: R-454B).
  • Lower heating capacity at 17°F: 12,800 BTU/h.
View AHRI
Same cooling capacity

Rheem

Mini / multi-split heat pump

FSHSR18B3D — Rheem AHRI 215792227

AHRI 215792227

Indoor model / pattern
FAHFW18A3D
Cooling · BTU/h
18,000
SEER2
21.00
HSPF2
9.80

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower HSPF2 (Region IV): 9.80 vs. 10.40
  • Different refrigerant: R-32 (current: R-454B).
View AHRI

Side by side

See the differences

Your current system and up to two alternatives. Scroll the table to see every system.

Comparison does not confirm installation compatibility, availability, or current incentive eligibility. Unknown and qualified source values are not treated as zero.

Our Services

Showing services from our catalog

Brands We Service

Popular cities

Service Areas