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W5H5S31*K*AAA*

W5H5S31*K*AAA* is in the certified data.

Its certified full-speed heating output at 5°F is 13,400–14,000 Btu/h, 45–46% of its 47°F rating, depending on the pairing.

EcoTemp and Grandaire · central heat pump

All 19 certified EcoTemp models · All 58 certified Grandaire models

W5H5S31*K*AAA* is in the certified data as of Sep 19, 2026.

30 certified pairings with 11 different figures. See all

Heating at 47°F

29,600

17,500 at 17°F

13,500 at 5°F

Btu/h, certified

2.00 COP at 5°F

Cooling at 95°F

27,400

Btu/h, certified

EER2 12.5 at 95°F

SEER2 15.5

Heating and cooling by outdoor temperature

Certified heating at 5, 17, and 47°F and cooling at 95°F for W5H5S31*K*AAA*, by outdoor temperature Heating: 13,500 Btu/h at 5°F, 17,500 Btu/h at 17°F, 29,600 Btu/h at 47°F. Cooling: 27,400 Btu/h at 95°F. The bars start at zero. Median of 2.5-ton central models: 22,400 Btu/h at 5°F, 20,600 Btu/h at 17°F, 30,000 Btu/h at 47°F, 30,000 Btu/h at 95°F. 0 10,000 20,000 30,000 40,000 Btu/h 13,500 5°F 17,500 17°F 29,600 47°F 27,400 95°F Outdoor temperature (°F)
  • Heating output
  • Cooling output
  • Median of 2.5-ton central models
  • Example heating load
  • Example cooling load
  • Frosting range, 17 to 45°F

This pairing delivers 29,600 Btu/h of heat at 47°F, 17,500 Btu/h at 17°F, and 13,500 Btu/h at 5°F, 46% of its 47°F rating. It delivers 27,400 Btu/h of cooling at 95°F. At 5°F that is 9,000 Btu/h short of the example heating load of 22,500 Btu/h; at 95°F it is 15,900 Btu/h above the example cooling load of 11,500 Btu/h.

Each bar is a separate certified test, drawn at its outdoor temperature, starting at zero. The 47°F figure is at one speed; the 17 and 5°F figures are at full speed. The short dark line on each bar is the median of 2.5-ton central models, one value per model. The shaded 17 to 45°F band is the frosting range: the outdoor coil can frost, and the unit pauses to defrost.

The dashed lines are example loads for a typical area of about 950 sq ft where winters reach 5°F: heating runs from 22,500 Btu/h at 5°F to 0 at 65°F, and cooling runs from 0 at 65°F to 11,500 Btu/h at 95°F, at 1,000 sq ft per ton. A house in a hot climate or with large west-facing windows can need twice as much cooling. They are examples, not your building.

Calculate heating and cooling for your house

AHRI certificate 218452487 · listed by Grandaire · certified Jun 29, 2026 · 4 pairings share these values

Rebates where you live

Meets the recorded equipment thresholds of 28 programs in 17 states, provinces, or territories:California (2), Colorado (1), Idaho (1), Kansas (1), Maryland (3), Michigan (2), Minnesota (2), Mississippi (1), Nevada (1), New Jersey (4), North Carolina (1), Oregon (2), Pennsylvania (3), South Carolina (1), Texas (3), Utah (1), Newfoundland and Labrador (1).

All 28 programs by state and province

California

Colorado

Idaho

Kansas

Maryland

Michigan

Minnesota

Mississippi

Nevada

New Jersey

North Carolina

Oregon

Pennsylvania

South Carolina

Texas

Utah

Newfoundland and Labrador

Threshold comparisons use the unit’s median certified figures across its pairings, not the pairing selected above. Meeting these thresholds means the equipment may qualify; it does not guarantee approval. Service-area, installation, and product-list requirements also apply.

All rebate programs and their published thresholds

Certified output and power use

Certified output for the selected pairingThe four bars share one scale. The comparison is with the median of 2.5-ton central models. Heating tests run at 70°F indoors. The cooling test runs at 80°F indoors.
Outdoor temperature Certified outputBtu/h One scale vs class median COPat 5°F
5°Fone compressor speed 13,5003.96 kW −40% 2.00
17°Fone compressor speed 17,5005.13 kW −15% NR
47°Fone compressor speed 29,6008.67 kW −1% NR
95°Fcooling, full load 27,4008.03 kW — NR

EER2 12.5 in that test. SEER2 15.5 over the modeled cooling season.

Power use at each temperature

Electrical input in the 5°F full-speed test
1.98kW
Electrical input in the 95°F cooling test
2.19kW
Seasonal average heating COP
2.34

These exclude backup resistance heat.

Updated Sep 19, 2026 · Methodology

How it compares with other 30,000 Btu heat pumps

2.5-ton central models

This pairing at 5°F
13,500 Btu/h
This unit at 5°F median across its pairings
13,500 Btu/h
Median of 2.5-ton central models at 5°F
22,400 Btu/h
Models in this group
288

This unit is above 8% of them, at number 265 of 288 by heat at 5°F. The middle half of the group runs 14,250 to 30,000 Btu/h.

This size class is defined by cooling capacity, so cooling is not compared here.

Among 30,000 Btu central models, each by its median certified pairing, highest first: 5°F output as a share of its 47°F rating, 285th of 288; HSPF2, 216th of 290 (tied). Models without that figure are left out.

Similar ratings at 47°F

These central models share the nominal cooling size. Comparisons use each model’s median certified figures across pairings.

  • YH630E2S11: 29,400 Btu/h at 47°F (this model: 29,600); 15,600 Btu/h at 5°F (this model: 13,500).
  • A-KXP30SA-1: 30,000 Btu/h at 47°F (this model: 29,600); 32,000 Btu/h at 5°F (this model: 13,500).
  • DIRM4-30MAGICPRO20-OU: 30,000 Btu/h at 47°F (this model: 29,600); 30,400 Btu/h at 5°F (this model: 13,500).

Closest models by heat at 5°F

Every 30,000 Btu (2.5-ton) unit, ranked by cooling efficiency, then heating efficiency

Floor area at the cold test point

The median certified output of 13,500 Btu/h at 5°F matches the size calculator’s heating estimate for these floor areas, rounded to about 10 sq ft. Each range divides that output by the climate band’s heating rates.

Floor area by climate band and house condition
Climate bandHouse conditionBtu/h per sq ftApproximate sq ft
MildDrafty, little insulation24–42320–560
MildTypical16–26520–840
MildTight, well insulated10–18750–1,350
ColdDrafty, little insulation28–52260–480
ColdTypical18–30450–750
ColdTight, well insulated12–22610–1,130
Very coldDrafty, little insulation32–58230–420
Very coldTypical22–38360–610
Very coldTight, well insulated16–28480–840

This is an estimate, not a house-specific load calculation. Output stays at the 5°F test point for every band; it does not predict output at the band’s winter design temperature.

Certified values for W5H5S31*K*AAA*

30 pairings · 30 AHRI certificates

This pairing is the one shown above. Under all pairings, a single figure means every pairing agrees and a range means the pairing decides.

This pairingAll pairings
Heating
Heat output at 47°F one speed 29,600 Btu/h 29,400–30,600 Btu/h
Heat output at 17°F full speed 17,500 Btu/h 17,500–18,100 Btu/h
Heat output at 5°F full speed 13,500 Btu/h 13,400–14,000 Btu/h
Heat output below 5°F NR NR
Cold output 5°F output as a % of the 47°F rating 46%
COP at 5°F full speed 2.00 2.00–2.06
HSPF2 Region IV 8.0 7.8–8.0
Cooling
Cooling capacity at 95°F full-load test 27,400 Btu/h 27,400–29,400 Btu/h
EER2 at 95°F 12.5 12.0–13.0
SEER2 cooling season 15.5 15.2–16.0
Cooling at other temperatures NR NR
Equipment and listing
Refrigerant R-454B
Compressor Single stage
Indoor unit FM(C,U)5S30**AL* 12 indoor units
FurnaceNo furnace 4 furnaces
Cold-climate designation EPA's designation, as published NC NC
ENERGY STAR Most Efficient EPA's designation, as published No On no pairings
Where it is sold US and Canada US and Canada
Model string as certified W5H5S31*K*AAA*

Across 30 certified pairings with 12 indoor models: heat at 5°F 13,400 Btu/h with FEVA0036**+NAVA53601CK to 14,000 Btu/h with W5A*43M21XA*; HSPF2 7.8 with FEVA0036**+NAVA53601CK to 8.0 with FM(C,U)5S30**AL*; SEER2 15.2 with FMA5L30**AL* to 16.0 with FM(C,U)5Z30**AL*. Endpoints name one indoor model where recorded; the furnace pairing can also change the figures.

Pairings, by indoor-unit class

12 indoor units · 30 certified pairings

One row per indoor unit certified with this outdoor unit.

Furnace paired · 1 indoor unit

  1. W5A*43M21XA* brand not stated 14,000 Btu/hat 5°F, full speed

    8 pairings, 4 with a furnace · 47°F 30,600 Btu/h · 95°F cooling 29,200 Btu/h · Cold output 46% · COP 2.06

Indoor units in the furnace paired class
Indoor unit Brand At 5°FBtu/h · full speed At 47°FBtu/h · one speed At 95°FBtu/h · cooling Cold output% of 47°F rating COP 5°Ffull speed Cold climate Pairings
W5A*43M21XA* — 14,000 30,600 29,200 46% 2.06 NC 8

Air handler · 11 indoor units

  1. FEVA0036**+NAVA53601CK brand not stated 13,400 Btu/hat 5°F, full speed

    2 pairings · 47°F 29,600 Btu/h · 95°F cooling 28,000 Btu/h · Cold output 45% · COP 2.00

  2. FEVB0036**+NAVA53601CK brand not stated 13,400 Btu/hat 5°F, full speed

    2 pairings · 47°F 29,600 Btu/h · 95°F cooling 28,000 Btu/h · Cold output 45% · COP 2.00

  3. FM(C,U)5S30**AL* brand not stated 13,500 Btu/hat 5°F, full speed

    2 pairings · 47°F 29,600 Btu/h · 95°F cooling 27,400 Btu/h · Cold output 46% · COP 2.00

  4. FM(C,U)5S36**AL* brand not stated 13,500 Btu/hat 5°F, full speed

    2 pairings · 47°F 29,600 Btu/h · 95°F cooling 27,400 Btu/h · Cold output 46% · COP 2.00

  5. FM(C,U)5Z30**AL* brand not stated 13,400 Btu/hat 5°F, full speed

    2 pairings · 47°F 29,400 Btu/h · 95°F cooling 27,800 Btu/h · Cold output 46% · COP 2.00

  6. FM(C,U)5Z36**AL* brand not stated 13,400 Btu/hat 5°F, full speed

    2 pairings · 47°F 29,400 Btu/h · 95°F cooling 27,800 Btu/h · Cold output 46% · COP 2.00

  7. FMA5L30**AL* brand not stated 13,800 Btu/hat 5°F, full speed

    2 pairings · 47°F 30,000 Btu/h · 95°F cooling 27,800 Btu/h · Cold output 46% · COP 2.00

  8. FMA5X30**AL* brand not stated 13,700 Btu/hat 5°F, full speed

    2 pairings · 47°F 30,000 Btu/h · 95°F cooling 28,800 Btu/h · Cold output 46% · COP 2.00

  9. FMA5X36**AL* brand not stated 13,700 Btu/hat 5°F, full speed

    2 pairings · 47°F 30,000 Btu/h · 95°F cooling 28,800 Btu/h · Cold output 46% · COP 2.00

  10. WCHL305*B* brand not stated 13,400 Btu/hat 5°F, full speed

    2 pairings · 47°F 29,400 Btu/h · 95°F cooling 27,600 Btu/h · Cold output 46% · COP 2.00

  11. WCHL425*C* brand not stated 13,400 Btu/hat 5°F, full speed

    2 pairings · 47°F 29,600 Btu/h · 95°F cooling 28,200 Btu/h · Cold output 45% · COP 2.05

Indoor units in the air handler class
Indoor unit Brand At 5°FBtu/h · full speed At 47°FBtu/h · one speed At 95°FBtu/h · cooling Cold output% of 47°F rating COP 5°Ffull speed Cold climate Pairings
FEVA0036**+NAVA53601CK — 13,400 29,600 28,000 45% 2.00 NC 2
FEVB0036**+NAVA53601CK — 13,400 29,600 28,000 45% 2.00 NC 2
FM(C,U)5S30**AL* — 13,500 29,600 27,400 46% 2.00 NC 2
FM(C,U)5S36**AL* — 13,500 29,600 27,400 46% 2.00 NC 2
FM(C,U)5Z30**AL* — 13,400 29,400 27,800 46% 2.00 NC 2
FM(C,U)5Z36**AL* — 13,400 29,400 27,800 46% 2.00 NC 2
FMA5L30**AL* — 13,800 30,000 27,800 46% 2.00 NC 2
FMA5X30**AL* — 13,700 30,000 28,800 46% 2.00 NC 2
FMA5X36**AL* — 13,700 30,000 28,800 46% 2.00 NC 2
WCHL305*B* — 13,400 29,400 27,600 46% 2.00 NC 2
WCHL425*C* — 13,400 29,600 28,200 45% 2.05 NC 2

The share is heat output at 5°F divided by the 47°F rating.

Showing 12 of 12 indoor units

Sold as, and units with identical certified values

Brands listing this model number

Other brands that list these model numbers

Model number as listed

  • W5H5S31*K*AAA* 30 pairings

Variants of the same model number

2 units in this group. Basis: identical certified values in the certified data. This grouping is our inference, not a field in the certified data.

1 of 2 shown.

What affects the price

We don't have prices. These things drive the cost.

  • The size of the unit, and the indoor equipment on the same certificate.
  • Whether existing ductwork is reused, altered, or replaced.
  • The electrical work: a circuit, a disconnect, and sometimes a panel change.
  • Refrigerant line length and how the outdoor unit is mounted.
  • Permits and inspection, which vary by municipality.
  • Removing and disposing of the old equipment.
  • Local labor rates and how busy the season is.
  • Rebates and tax credits, which change and have deadlines.

History and definitions

Other 15 SEER2 HP models by nominal cooling size: W5H5S24*K*AAA* (24,000 Btu), W5H5S30*K*AAA* (30,000 Btu), W4H5S60*K*AAA* (54,000 Btu).

History

First certified record
Most recent certified record
Measurements reported
Jun 29, 2026
Status
In the certified data

Field definitions

COP
Heat delivered for each unit of electricity used. A COP of 2.5 gives 2.5 times the heat of an electric baseboard heater.
HSPF2
Heating efficiency over a typical season. Higher uses less electricity.
SEER2
Cooling efficiency over a typical season. Higher uses less electricity.
EER2
Cooling output divided by electrical input in the 95°F full-load test, in Btu/h per watt.
Cold output
Heat output at 5°F as a percentage of the 47°F rating.
% of rating at 17°F
Heat output at 17°F as a percentage of the 47°F rating.

NR not in the certified dataNC not cold-climate certifiedSP single pairing onlyVP varies by pairing; see the pairings tableWD withdrawn since the certified data was last read

Cite or print this page

Heat Pump List, “W5H5S31*K*AAA* — certified heat output”. Certified figures dated , checked daily.
https://heatpumplist.com/model/w5h5s31_stk_staaa_st