What is the SEER2 rating of the GARVEE GMS9-2 PRO?

The GARVEE GMS9-2 PRO is rated at up to 24.0 SEER2 and 13.0 EER2 for cooling and up to 10.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the GARVEE GMS9-2 PRO good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 7,100 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.

How much does the GARVEE GMS9-2 PRO cost to run per year?

At its rated efficiency it costs about $177-$550 a year in electricity in large U.S. cities, depending on climate and local rates - for example $229 in Phoenix and $467 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Which indoor units work with the GARVEE GMS9-2 PRO?

ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses GMS9-2 PRO.

9,000 BTU mini-split heat pump · Pro

GARVEE GMS9-2 PRO

Very good cooling efficiency and average heating efficiency for a 9,000 BTU mini-split heat pump, and certified for cold climates.

Ranks #207 of 395 9,000 BTU mini-splits for cooling efficiency, and costs about $223 a year to run in a mixed climate like Atlanta.

SEER2: 24.0 Cooling efficiency over a season
Very good · beats 75%
HSPF2: 10.0 Heating efficiency over a season
Average · beats 43%
EER2: 13.0 Cooling efficiency on a 95°F day
Average · beats 62%
Heat at 5°F: 7,100 BTU/h79% of its 47°F output
Average · beats 67%

A good fit if…

You want low cooling bills - its SEER2 beats 75% of mini-splits.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 7,100 BTU/h at 5°F.
You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

Nothing stands out - its ratings have no weak spot for its class.

Calculate my running cost

Details

Specifications9,000 BTU, R-454B

General
Brand	GARVEE
Outdoor unit model	GMS9-2 PRO
Series	Pro
Type	Mini-split heat pump
Nominal size	9,000 BTU
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	February 15, 2025
Last certified	March 31, 2025
Cooling
SEER2Seasonal efficiency, higher is better	24.0 (range 24.0)
EER2Efficiency at 95°F outdoors	13.0
Cooling capacity	9,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	10.0
Capacity at 47°F	9,000 BTU/h
Capacity at 17°F	5,800 BTU/h
Capacity at 5°F	7,100 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.10
ENERGY STAR cold climate	Yes

Heating output as it gets colder79% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with GMS9-2 PRO at the standard test temperatures, in BTU/h:

Certified matchups1 indoor units

The same outdoor unit scores differently with each indoor unit. Ask your installer for the AHRI reference number of the exact system you are quoted.

Indoor unit	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
GMS9-2 PRO · cold climate	24.0	13.0	10.0	7,100	216980964

Yearly running cost in 10 large cities$177-$550

Phoenix, AZ$229/yr
Miami, FL$177/yr
Houston, TX$206/yr
Atlanta, GA$223/yr
Los Angeles, CA$220/yr
New York, NY$550/yr
Chicago, IL$450/yr
Denver, CO$377/yr
Seattle, WA$234/yr
Minneapolis, MN$467/yr

At each state's average electricity price and the city's typical heating and cooling hours.

Questions5

What is the SEER2 rating of the GARVEE GMS9-2 PRO?: The GARVEE GMS9-2 PRO is rated at up to 24.0 SEER2 and 13.0 EER2 for cooling and up to 10.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the GARVEE GMS9-2 PRO good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 7,100 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
How much does the GARVEE GMS9-2 PRO cost to run per year?: At its rated efficiency it costs about $177-$550 a year in electricity in large U.S. cities, depending on climate and local rates - for example $229 in Phoenix and $467 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Which indoor units work with the GARVEE GMS9-2 PRO?: ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses GMS9-2 PRO.
What refrigerant does the GARVEE GMS9-2 PRO use?: It uses R-454B.

Running cost and savings

Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

Heat pump $233/yrYou save $231/yrSee details ↓

1. Where you live

StateCityElectricity ¢ per kWh

Adjust heating and cooling hours

Filled in from your city's climate. Change them if you run the system much more or less than usual.

Cooling hours full-load hours per yearHeating hours full-load hours per year

2. The heat pump GARVEE GMS9-2 PRO

Find a model (fills in the ratings below)

SEER2 cooling efficiencyHSPF2 heating efficiencyCooling capacity BTU/hHeating capacity BTU/h

3. What it replaces

Current heatingFurnace efficiency (AFUE %)Gas price, $/thermCurrent coolingOld AC rating SEER2 (10 ≈ 15+ years old)

4. Price replace the example with your quote

Installed price, $Rebates and incentives, $ utility, state

Heat pump, per year: $233
Current system, per year: $464
You save per year: $231
Payback: 15.1 years
Net after 10 years: -$1,187

Cooling $132Heating $101Electricity used: 1,455 kWhSaved vs. a minimum-efficiency heat pump: $123

Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.

Similar 9,000 BTU models

KANIONco KWSM-09IR410AHS24MV · cold climate24.0 SEER2 · 11.4 HSPF2
Trane / Mitsubishi Electric NTXSKS09A112AA24.0 SEER2 · 10.0 HSPF2
ECO AC EHH-O9BB · cold climate24.0 SEER2 · 11.4 HSPF2
KANIONco KWSM-09IR410AHS24MVL24.0 SEER2 · 9.6 HSPF2
ECO AC EHH-O09BB · cold climate24.0 SEER2 · 11.4 HSPF2
Mitsubishi Electric SUZ-KA09NAH224.0 SEER2 · 9.0 HSPF2
DUCTLESSAIRE DA0921-H2-O · cold climate24.0 SEER2 · 11.4 HSPF2
LG KUSAB091A · cold climate23.8 SEER2 · 10.9 HSPF2

See all 395 9,000 BTU mini-splits, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of March 31, 2025. How we use the data.