HVAC Rated

24,000 BTU mini-split heat pump · Pular

ForestAir FGH-24ES/E25-O

Very good cooling efficiency and below average heating efficiency for a 24,000 BTU mini-split heat pump, and certified for cold climates.

Ranks #60 of 430 24,000 BTU mini-splits for cooling efficiency, and costs about $598 a year to run in a mixed climate like Atlanta.

SEER2
24.0 Cooling efficiency over a season
Very good · beats 75%
HSPF2
9.5 Heating efficiency over a season
Below average · beats 24%
EER2
13.0 Cooling efficiency on a 95°F day
Average · beats 62%
Heat at 5°F
20,000 BTU/h83% of its 47°F output
Below average · beats 9%

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 20,000 BTU/h at 5°F.
  • You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

  • You mainly need heat - its HSPF2 is below average for mini-splits.
  • You want the newest refrigerant - it uses R-410A, which is being phased down.

Calculate my running cost

Details

Specifications24,000 BTU, R-410A
General
BrandForestAir
Outdoor unit modelFGH-24ES/E25-O
SeriesPular
TypeMini-split heat pump
Nominal size24,000 BTU
CompressorVariable-speed units run longer at low powerContinuously variable
RefrigerantR-410A
Connected (smart) capableNo
On the market sinceMarch 1, 2023
Last certifiedFebruary 25, 2026
Cooling
SEER2Seasonal efficiency, higher is better24.0 (range 24.0)
EER2Efficiency at 95°F outdoors13.0
Cooling capacity22,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better9.5
Capacity at 47°F24,000 BTU/h
Capacity at 17°F19,200 BTU/h
Capacity at 5°F20,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater1.80
ENERGY STAR cold climateYes
Heating output as it gets colder83% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with FGH-24ES/E25-I 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 unitSEER2EER2HSPF2Heat @5°FAHRI ref.
FGH-24ES/E25-I · cold climate24.013.09.520,000211624984
Yearly running cost in 10 large cities$436-$1,511

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

Questions5
What is the SEER2 rating of the ForestAir FGH-24ES/E25-O?
The ForestAir FGH-24ES/E25-O is rated at up to 24.0 SEER2 and 13.0 EER2 for cooling and up to 9.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the ForestAir FGH-24ES/E25-O good for cold climates?
Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 20,000 BTU/h at 5°F with a COP of 1.80, so it is still 1.8 times as efficient as electric resistance heat at that temperature.
How much does the ForestAir FGH-24ES/E25-O cost to run per year?
At its rated efficiency it costs about $436-$1,511 a year in electricity in large U.S. cities, depending on climate and local rates - for example $585 in Phoenix and $1,299 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 ForestAir FGH-24ES/E25-O?
ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses FGH-24ES/E25-I.
What refrigerant does the ForestAir FGH-24ES/E25-O use?
It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

Running cost and savings

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

Heat pump $606/yrYou save $561/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 ForestAir FGH-24ES/E25-O
3. What it replaces
4. Price replace the example with your quote
Heat pump, per year
$606
Current system, per year
$1,167
You save per year
$561
Payback
15.1 years
Net after 10 years
-$2,885

Cooling $323Heating $283Electricity used: 3,785 kWhSaved vs. a minimum-efficiency heat pump: $294

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 February 25, 2026. How we use the data.