HVAC Rated

42,000 BTU mini-split heat pump · AM Series

AproDr AM6OG-48HFN1

Below average cooling efficiency and average heating efficiency for a 42,000 BTU mini-split heat pump, and certified for cold climates.

Ranks #31 of 61 42,000 BTU mini-splits for cooling efficiency, and costs about $1,157 a year to run in a mixed climate like Atlanta.

SEER2
21.3 Cooling efficiency over a season
Below average · beats 35%
HSPF2
10.6 Heating efficiency over a season
Average · beats 65%
EER2
11.7 Cooling efficiency on a 95°F day
Below average · beats 16%
Heat at 5°F
38,000 BTU/h75% of its 47°F output
Average · beats 67%

A good fit if…

  • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 38,000 BTU/h at 5°F.
  • 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

Specifications42,000 BTU, R-454B
General
BrandAproDr
Also sold asApooDr
Outdoor unit modelAM6OG-48HFN1
SeriesAM Series
TypeMini-split heat pump
Nominal size42,000 BTU
CompressorVariable-speed units run longer at low powerContinuously variable
RefrigerantR-454B
Connected (smart) capableNo
On the market sinceJanuary 1, 2025
Last certifiedMay 6, 2026
Cooling
SEER2Seasonal efficiency, higher is better21.3 (range 20.4-21.3)
EER2Efficiency at 95°F outdoors11.7-12.0
Cooling capacity45,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better10.0-10.6
Capacity at 47°F47,000-48,000 BTU/h
Capacity at 17°F36,800-39,000 BTU/h
Capacity at 5°F36,000-38,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater2.10
ENERGY STAR cold climateYes
Heating output as it gets colder75% kept at 5°F

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

Certified matchups6 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 unitSEER2EER2HSPF2Heat @5°FAHRI ref.
- Aprodr · cold climate21.311.710.036,000217334324
- ApooDr · cold climate21.311.710.036,000217563514
- Aprodr · cold climate20.911.910.337,000217334326
- ApooDr · cold climate20.911.910.337,000217563516
- Aprodr · cold climate20.412.010.638,000217334325
- ApooDr · cold climate20.412.010.638,000217563515
Yearly running cost in 10 large cities$995-$2,797

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

Questions4
What is the SEER2 rating of the AproDr AM6OG-48HFN1?
The AproDr AM6OG-48HFN1 is rated at up to 21.3 SEER2 and 11.7 EER2 for cooling and up to 10.6 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 6 certified matchups SEER2 ranges from 20.4-21.3.
Is the AproDr AM6OG-48HFN1 good for cold climates?
Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 38,000 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 AproDr AM6OG-48HFN1 cost to run per year?
At its rated efficiency it costs about $995-$2,797 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,245 in Phoenix and $2,351 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
What refrigerant does the AproDr AM6OG-48HFN1 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 $1,246/yrYou save $1,116/yrSee details ↓
1. Where you live
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.

2. The heat pump AproDr AM6OG-48HFN1
3. What it replaces
4. Price replace the example with your quote
Heat pump, per year
$1,246
Current system, per year
$2,361
You save per year
$1,116
Payback
15.2 years
Net after 10 years
-$5,843

Cooling $744Heating $502Electricity used: 7,785 kWhSaved vs. a minimum-efficiency heat pump: $571

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.

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