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37MURAQ18AA3

37MURAQ18AA3 is in the certified data.

Its certified full-speed heating output at 5°F is 11,000–11,400 Btu/h, 59–63% of its 47°F rating (tests at different compressor speeds), depending on the pairing.

Bryant, Carrier + 3 more · central heat pump

All 205 certified Bryant models · All 187 certified Carrier models · All 359 certified Midea models · All 107 certified Payne models · All 123 certified WeatherMaker models

37MURAQ18AA3 is in the certified data as of Sep 19, 2026.

8 certified pairings with 3 different figures. See all

Heating at 47°F

18,000

12,600 at 17°F

11,200 at 5°F

Btu/h, certified

2.00 COP at 5°F

Cooling at 95°F

18,000

Btu/h, certified

EER2 11.0 at 95°F

SEER2 18.8

Heating and cooling by outdoor temperature

Certified heating at 5, 17, and 47°F and cooling at 95°F for 37MURAQ18AA3, by outdoor temperature Heating: 11,200 Btu/h at 5°F, 12,600 Btu/h at 17°F, 18,000 Btu/h at 47°F. Cooling: 18,000 Btu/h at 95°F. The bars start at zero. Median of 1.5-ton central models: 11,200 Btu/h at 5°F, 12,600 Btu/h at 17°F, 18,000 Btu/h at 47°F, 18,000 Btu/h at 95°F. 0 5,000 10,000 15,000 20,000 Btu/h 11,200 5°F 12,600 17°F 18,000 47°F 18,000 95°F Outdoor temperature (°F)
  • Heating output
  • Cooling output
  • Median of 1.5-ton central models
  • Example heating load
  • Example cooling load
  • Frosting range, 17 to 45°F

This pairing delivers 18,000 Btu/h of heat at 47°F, 12,600 Btu/h at 17°F, and 11,200 Btu/h at 5°F, 62% of its 47°F rating. It delivers 18,000 Btu/h of cooling at 95°F. At 5°F that is 200 Btu/h above the example heating load of 11,000 Btu/h; at 95°F it is 12,500 Btu/h above the example cooling load of 5,500 Btu/h.

Each bar is a separate certified test, drawn at its outdoor temperature, starting at zero. The 47°F figure is at normal speed; the 17 and 5°F figures are at full speed. The short dark line on each bar is the median of 1.5-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 450 sq ft where winters reach 5°F: heating runs from 11,000 Btu/h at 5°F to 0 at 65°F, and cooling runs from 0 at 65°F to 5,500 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 215318755 · listed by Carrier · certified Nov 24, 2025 · 5 pairings share these values

Rebates where you live

Meets the recorded equipment thresholds of 43 programs in 28 states, provinces, or territories:Alabama (1), Arizona (1), California (3), Delaware (1), Idaho (2), Illinois (1), Kansas (1), Kentucky (1), Maryland (3), Michigan (2), Minnesota (2), Mississippi (2), Nevada (1), New Hampshire (1), New Jersey (3), New York (4), North Carolina (1), Oregon (2), Pennsylvania (2), South Carolina (1), Tennessee (1), Texas (2), Utah (1), Vermont (3), Washington (2), Wisconsin (1), British Columbia (3), Newfoundland and Labrador (1).

All 43 programs by state and province

Alabama

Arizona

California

Delaware

Idaho

Illinois

Kansas

Kentucky

Maryland

Michigan

Minnesota

Mississippi

Nevada

New Hampshire

New Jersey

New York

North Carolina

Oregon

Pennsylvania

South Carolina

Tennessee

Texas

Utah

Vermont

Washington

Wisconsin

British Columbia

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 1.5-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°Ffull speed 11,2003.28 kW 0% 2.00
17°Ffull speed 12,6003.69 kW 0% NR
47°Fnormal speed 18,0005.28 kW 0% NR
95°Fcooling, full load 18,0005.28 kW — NR

EER2 11.0 in that test. SEER2 18.8 over the modeled cooling season.

Power use at each temperature

Electrical input in the 5°F full-speed test
1.64kW
Electrical input in the 95°F cooling test
1.64kW
Seasonal average heating COP
2.70

These exclude backup resistance heat.

Updated Sep 19, 2026 · Methodology

How it compares with other 18,000 Btu heat pumps

1.5-ton central models

This pairing at 5°F
11,200 Btu/h
This unit at 5°F median across its pairings
11,200 Btu/h
Median of 1.5-ton central models at 5°F
11,200 Btu/h
Models in this group
243

This unit is above 42% of them, at number 140 of 243 by heat at 5°F. The middle half of the group runs 8,600 to 18,000 Btu/h.

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

Among 18,000 Btu central models, each by its median certified pairing, highest first: 5°F output as a share of its 47°F rating, 126th of 243 (tied); HSPF2, 83rd of 254 (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.

  • AHU18HPV1BO: The same 18,000 Btu/h rating at 47°F; 20,400 Btu/h at 5°F (this model: 11,200).
  • AHU3G-18HFN-B: The same 18,000 Btu/h rating at 47°F; 18,600 Btu/h at 5°F (this model: 11,200).
  • BMSAH18HHC: The same 18,000 Btu/h rating at 47°F; 18,000 Btu/h at 5°F (this model: 11,200).

Closest models by heat at 5°F

Every 18,000 Btu (1.5-ton) unit, ranked by cooling efficiency, then heating efficiency

Floor area at the cold test point

The median certified output of 11,200 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 insulation24–42270–470
MildTypical16–26430–700
MildTight, well insulated10–18620–1,120
ColdDrafty, little insulation28–52220–400
ColdTypical18–30370–620
ColdTight, well insulated12–22510–930
Very coldDrafty, little insulation32–58190–350
Very coldTypical22–38290–510
Very coldTight, well insulated16–28400–700

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 37MURAQ18AA3

8 pairings · 8 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 normal speed 18,000 Btu/h 18,000–18,800 Btu/h
Heat output at 17°F full speed 12,600 Btu/h 12,300–12,600 Btu/h
Heat output at 5°F full speed 11,200 Btu/h 11,000–11,400 Btu/h
Heat output below 5°F NR NR
Cold output 5°F output as a % of the 47°F rating 62%
COP at 5°F full speed 2.00 1.90–2.10
HSPF2 Region IV 9.2 8.5–9.4
Cooling
Cooling capacity at 95°F full-load test 18,000 Btu/h 18,000–18,400 Btu/h
EER2 at 95°F 11.0 11.0–11.5
SEER2 cooling season 18.8 16.2–18.8
Cooling at other temperatures NR NR
Equipment and listing
Refrigerant R-454B
Compressor Variable speed
Indoor unit 45MUAAQ18XX3 3 indoor units
FurnaceNo furnace None
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 37MURAQ18AA3

Across 8 certified pairings with 3 indoor models: heat at 5°F 11,000 Btu/h with FEVB0024**+NAVA53601CK to 11,400 Btu/h with D5MUWAQ18XA3; HSPF2 8.5 with FEVB0024**+NAVA53601CK to 9.4 with D5MUWAQ18XA3; SEER2 16.2 with FEVB0024**+NAVA53601CK to 18.8 with 45MUAAQ18XX3. Endpoints name one indoor model where recorded; the furnace pairing can also change the figures.

Pairings, by indoor-unit class

3 indoor units · 8 certified pairings

One row per indoor unit certified with this outdoor unit.

Air handler · 3 indoor units

  1. 45MUAAQ18XX3 brand not stated 11,200 Btu/hat 5°F, full speed

    5 pairings · 47°F 18,000 Btu/h · 95°F cooling 18,000 Btu/h · Cold output 62% · COP 2.00

  2. FEVB0024**+NAVA53601CK brand not stated 11,000 Btu/hat 5°F, full speed

    2 pairings · 47°F 18,800 Btu/h · 95°F cooling 18,400 Btu/h · Cold output 59% · COP 1.90

  3. D5MUWAQ18XA3 brand not stated 11,400 Btu/hat 5°F, full speed

    1 pairing · 47°F 18,000 Btu/h · 95°F cooling 18,000 Btu/h · Cold output 63% · COP 2.10

Indoor units in the air handler class
Indoor unit Brand At 5°FBtu/h · full speed At 47°FBtu/h · normal speed At 95°FBtu/h · cooling Cold output% of 47°F rating COP 5°Ffull speed Cold climate Pairings
45MUAAQ18XX3 — 11,200 18,000 18,000 62% 2.00 NC 5
FEVB0024**+NAVA53601CK — 11,000 18,800 18,400 59% 1.90 NC 2
D5MUWAQ18XA3 — 11,400 18,000 18,000 63% 2.10 NC 1

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

Showing 3 of 3 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

  • 37MURAQ18AA3 6 pairings
  • 37MURAQ18AA3+KSAIC0701230 2 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.

Product history

  • 37MURAQ18AA3 first appeared in the certified data between June 2025 and August 2025.

History and definitions

Other 37M Series models by nominal cooling size: 37MAHAQ06AA3 (6,000 Btu), 37MPRAQ06AA3 (6,000 Btu), 37MAHAQ09AA3 (9,000 Btu), 37MARAQ09AA3 (9,000 Btu), 37MPRAQ09AA3 (9,000 Btu), 37MAHAQ12AA3 (12,000 Btu), 37MARAQ12AA1 (12,000 Btu), 37MARAQ12AA3 (12,000 Btu); more models from this brand.

Other Crossover Heat Pump models by nominal cooling size: 37MUHAQ36AA3 (36,000 Btu), 37MUHAQ48AA3 (48,000 Btu), 37MURAQ48AA3 (48,000 Btu), 37MUHAQ60AA3 (54,000 Btu).

Other 37M Series models by nominal cooling size: 37MAHAQ06AA3 (6,000 Btu), 37MPRAQ06AA3 (6,000 Btu), 37MAHAQ09AA3 (9,000 Btu), 37MARAQ09AA3 (9,000 Btu), 37MPRAQ09AA3 (9,000 Btu), 37MAHAQ12AA3 (12,000 Btu), 37MARAQ12AA1 (12,000 Btu), 37MARAQ12AA3 (12,000 Btu); more models from this brand.

History

First certified record
Most recent certified record
Measurements reported
Nov 24, 2025
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, “37MURAQ18AA3 — certified heat output”. Certified figures dated , checked daily.
https://heatpumplist.com/model/37muraq18aa3