What is the SEER2 rating of the Cooper&Hunter CH-RHP15-230VO?

The Cooper&Hunter CH-RHP15-230VO is rated at up to 21.4 SEER2 and 12.5 EER2 for cooling and up to 11.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Cooper&Hunter CH-RHP15-230VO good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 18,000 BTU/h at 5°F with a COP of 1.92, so it is still 1.9 times as efficient as electric resistance heat at that temperature.

How much does the Cooper&Hunter CH-RHP15-230VO cost to run per year?

At its rated efficiency it costs about $395-$1,038 a year in electricity in large U.S. cities, depending on climate and local rates - for example $484 in Phoenix and $865 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Cooper&Hunter CH-RHP15-230VO the same as the Continental CDHAS26BA-18-O?

Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.

Which indoor units work with the Cooper&Hunter CH-RHP15-230VO?

ENERGY STAR lists 2 certified combinations for this outdoor unit. The highest-rated ones use CH-RH15MASTWM-230VI, CH-PRO15MASTWM-230VI.

18,000 BTU mini-split heat pump · CH Series

Cooper&Hunter CH-RHP15-230VO

Below average cooling efficiency and very good heating efficiency for a 18,000 BTU mini-split heat pump, and certified for cold climates.

Ranks #305 of 465 18,000 BTU mini-splits for cooling efficiency, and costs about $436 a year to run in a mixed climate like Atlanta.

SEER2: 21.4 Cooling efficiency over a season
Below average · beats 36%
HSPF2: 11.0 Heating efficiency over a season
Very good · beats 75%
EER2: 12.5 Cooling efficiency on a 95°F day
Average · beats 44%
Heat at 5°F: 18,000 BTU/h100% of its 47°F output
Below average · beats 32%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 18,000 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 75% of mini-splits.
You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

Cooling cost matters most - its SEER2 is below average for mini-splits.

Calculate my running cost

Details

Specifications18,000 BTU, R-454B

General
Brand	Cooper&Hunter
Also sold as	Continental
Outdoor unit model	CH-RHP15-230VO
Series	CH Series
Type	Mini-split heat pump
Nominal size	18,000 BTU
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	January 15, 2025
Last certified	May 6, 2026
Cooling
SEER2Seasonal efficiency, higher is better	21.4 (range 21.4)
EER2Efficiency at 95°F outdoors	12.5
Cooling capacity	18,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	11.0
Capacity at 47°F	18,000 BTU/h
Capacity at 17°F	18,000 BTU/h
Capacity at 5°F	18,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.92
ENERGY STAR cold climate	Yes

Heating output as it gets colder100% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with CH-RH15MASTWM-230VI at the standard test temperatures, in BTU/h:

Certified matchups2 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.
CH-RH15MASTWM-230VI · cold climate	21.4	12.5	11.0	18,000	216763039
CH-PRO15MASTWM-230VI · cold climate	21.4	12.5	11.0	18,000	216763040

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Cooper&Hunter CH-RHP15-230VO: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

Continental CDHAS26BA-18-O

Yearly running cost in 10 large cities$395-$1,038

Phoenix, AZ$484/yr
Miami, FL$395/yr
Houston, TX$434/yr
Atlanta, GA$436/yr
Los Angeles, CA$424/yr
New York, NY$1,038/yr
Chicago, IL$842/yr
Denver, CO$699/yr
Seattle, WA$429/yr
Minneapolis, MN$865/yr

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

Questions6

What is the SEER2 rating of the Cooper&Hunter CH-RHP15-230VO?: The Cooper&Hunter CH-RHP15-230VO is rated at up to 21.4 SEER2 and 12.5 EER2 for cooling and up to 11.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Cooper&Hunter CH-RHP15-230VO good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 18,000 BTU/h at 5°F with a COP of 1.92, so it is still 1.9 times as efficient as electric resistance heat at that temperature.
How much does the Cooper&Hunter CH-RHP15-230VO cost to run per year?: At its rated efficiency it costs about $395-$1,038 a year in electricity in large U.S. cities, depending on climate and local rates - for example $484 in Phoenix and $865 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Cooper&Hunter CH-RHP15-230VO the same as the Continental CDHAS26BA-18-O?: Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
Which indoor units work with the Cooper&Hunter CH-RHP15-230VO?: ENERGY STAR lists 2 certified combinations for this outdoor unit. The highest-rated ones use CH-RH15MASTWM-230VI, CH-PRO15MASTWM-230VI.
What refrigerant does the Cooper&Hunter CH-RHP15-230VO 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 $479/yrYou save $449/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 Cooper&Hunter CH-RHP15-230VO

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: $479
Current system, per year: $928
You save per year: $449
Payback: 15.6 years
Net after 10 years: -$2,512

Cooling $296Heating $183Electricity used: 2,996 kWhSaved vs. a minimum-efficiency heat pump: $233

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 18,000 BTU models

Stelpro SEPB-H18A-O · cold climate21.4 SEER2 · 12.3 HSPF2
MRCOOL O-ES-18-HP-C-230C-O1 · cold climate21.4 SEER2 · 11.0 HSPF2
Senville SENA-18HF-OG · cold climate21.4 SEER2 · 12.3 HSPF2
MRCOOL DIYHH-18-HP-C-230D25-O · cold climate21.2 SEER2 · 12.2 HSPF2
Napoleon NDHAS26BA-18-O · cold climate21.4 SEER2 · 12.3 HSPF2
Blueridge BDS3A18UC0 · cold climate21.2 SEER2 · 11.0 HSPF2
MRCOOL O-HH-18-HP-C-230C-O · cold climate21.4 SEER2 · 12.3 HSPF2
1HVAC EZ-18Z-M2 · cold climate21.2 SEER2 · 9.6 HSPF2

See all 465 18,000 BTU mini-splits, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of May 6, 2026. How we use the data.