Heat Pump List
Menu

Sections

Tools

RHP15036B21

RHP15036B21 is in the certified data.

Its certified full-speed heating output at 5°F is 17,700–18,500 Btu/h, 52–54% of its 47°F rating, depending on the pairing.

Evcon and Guardian · central heat pump

RHP15036B21 is in the certified data as of Sep 19, 2026. RHP15036B21 returned to the certified data between August 2025 and September 2026.

14 certified pairings with 7 different figures. See all

Heating at 47°F

34,000

22,000 at 17°F

18,000 at 5°F

Btu/h, certified

2.16 COP at 5°F

Cooling at 95°F

35,000

Btu/h, certified

EER2 12.0 at 95°F

SEER2 15.2

Heating and cooling by outdoor temperature

Certified heating at 5, 17, and 47°F and cooling at 95°F for RHP15036B21, by outdoor temperature Heating: 18,000 Btu/h at 5°F, 22,000 Btu/h at 17°F, 34,000 Btu/h at 47°F. Cooling: 35,000 Btu/h at 95°F. The bars start at zero. Median of 3-ton central models: 26,400 Btu/h at 5°F, 26,200 Btu/h at 17°F, 35,200 Btu/h at 47°F, 35,000 Btu/h at 95°F. 0 10,000 20,000 30,000 40,000 Btu/h 18,000 5°F 22,000 17°F 34,000 47°F 35,000 95°F Outdoor temperature (°F)
  • Heating output
  • Cooling output
  • Median of 3-ton central models
  • Example heating load
  • Example cooling load
  • Frosting range, 17 to 45°F

This pairing delivers 34,000 Btu/h of heat at 47°F, 22,000 Btu/h at 17°F, and 18,000 Btu/h at 5°F, 53% of its 47°F rating. It delivers 35,000 Btu/h of cooling at 95°F. At 5°F that is 8,500 Btu/h short of the example heating load of 26,500 Btu/h; at 95°F it is 22,000 Btu/h above the example cooling load of 13,000 Btu/h.

Each bar is a separate certified test, drawn at its outdoor temperature, starting at zero. The 47°F figure is at high stage; the 17 and 5°F figures are at full speed. The short dark line on each bar is the median of 3-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 1,100 sq ft where winters reach 5°F: heating runs from 26,500 Btu/h at 5°F to 0 at 65°F, and cooling runs from 0 at 65°F to 13,000 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 214799635 · listed by Guardian · certified Jul 14, 2026 · 2 pairings share these values

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 3-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 18,0005.28 kW −32% 2.16
17°Fone compressor speed 22,0006.45 kW −16% NR
47°Fone compressor speed 34,0009.96 kW −3% NR
95°Fcooling, full load 35,00010.26 kW — NR

EER2 12.0 in that test. SEER2 15.2 over the modeled cooling season.

Power use at each temperature

Electrical input in the 5°F full-speed test
2.44kW
Electrical input in the 95°F cooling test
2.92kW
Seasonal average heating COP
2.29

These exclude backup resistance heat.

Updated Sep 19, 2026 · Methodology

How it compares with other 36,000 Btu heat pumps

3-ton central models

This pairing at 5°F
18,000 Btu/h
This unit at 5°F median across its pairings
18,000 Btu/h
Median of 3-ton central models at 5°F
26,400 Btu/h
Models in this group
451

This unit is above 21% of them, at number 355 of 451 by heat at 5°F. The middle half of the group runs 18,650 to 32,000 Btu/h.

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

Closest models by heat at 5°F

Every 36,000 Btu (3-ton) unit, ranked by cooling efficiency, then heating efficiency

Certified values for RHP15036B21

14 pairings · 14 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 high stage 34,000 Btu/h 33,400–34,600 Btu/h
Heat output at 17°F full speed 22,000 Btu/h 21,800–22,600 Btu/h
Heat output at 5°F full speed 18,000 Btu/h 17,700–18,500 Btu/h
Heat output below 5°F NR NR
Cold output 5°F output as a % of the 47°F rating 53%
COP at 5°F full speed 2.16 2.16–2.22
HSPF2 Region IV 7.8 7.8
Cooling
Cooling capacity at 95°F full-load test 35,000 Btu/h 34,200–35,600 Btu/h
EER2 at 95°F 12.0 11.7–12.0
SEER2 cooling season 15.2 15.2
Cooling at other temperatures NR NR
Equipment and listing
Refrigerant R-410A
Compressor Two-stage
Indoor unit XAFC48FBCN1+JME12C2SN1 7 indoor units
FurnaceNo furnace 1 furnace
Cold-climate designation EPA's designation, as published NC On some pairings
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 RHP15036B21

Pairings, by indoor-unit class

7 indoor units · 14 certified pairings

One row per indoor unit certified with this outdoor unit.

Furnace paired · 1 indoor unit

  1. XAHC48FBCN1 brand not stated 18,500 Btu/hat 5°F, full speed

    2 pairings, 1 with a furnace · 47°F 34,600 Btu/h · 95°F cooling 35,600 Btu/h · Cold output 53% · COP 2.16

Indoor units in the furnace paired class
Indoor unit Brand At 5°FBtu/h · full speed At 47°FBtu/h · high stage At 95°FBtu/h · cooling Cold output% of 47°F rating COP 5°Ffull speed Cold climate Pairings
XAHC48FBCN1 — 18,500 34,600 35,600 53% 2.16 Yes 2

Air handler · 6 indoor units

  1. XAFC48FBCN1+JME12C2SN1 brand not stated 18,000 Btu/hat 5°F, full speed

    2 pairings · 47°F 34,000 Btu/h · 95°F cooling 35,000 Btu/h · Cold output 53% · COP 2.16

  2. XAFD48FBCN1+JME18D2SN1 brand not stated 18,100 Btu/hat 5°F, full speed

    2 pairings · 47°F 34,000 Btu/h · 95°F cooling 35,000 Btu/h · Cold output 53% · COP 2.16

  3. XAHC36DBCN1+JME12C2SN1 brand not stated 18,200 Btu/hat 5°F, full speed

    2 pairings · 47°F 34,000 Btu/h · 95°F cooling 34,600 Btu/h · Cold output 54% · COP 2.22

  4. XAHC36DBCN1+JME16C2SN1 brand not stated 17,700 Btu/hat 5°F, full speed

    2 pairings · 47°F 33,400 Btu/h · 95°F cooling 34,200 Btu/h · Cold output 53% · COP 2.18

  5. XAHC48FBCN1+JME16C2SN1 brand not stated 17,700 Btu/hat 5°F, full speed

    2 pairings · 47°F 33,800 Btu/h · 95°F cooling 35,000 Btu/h · Cold output 52% · COP 2.22

  6. XAHD48FBCN1+JME18D2SN1 brand not stated 17,800 Btu/hat 5°F, full speed

    2 pairings · 47°F 33,800 Btu/h · 95°F cooling 35,000 Btu/h · Cold output 53% · COP 2.22

Indoor units in the air handler class
Indoor unit Brand At 5°FBtu/h · full speed At 47°FBtu/h · high stage At 95°FBtu/h · cooling Cold output% of 47°F rating COP 5°Ffull speed Cold climate Pairings
XAFC48FBCN1+JME12C2SN1 — 18,000 34,000 35,000 53% 2.16 NC 2
XAFD48FBCN1+JME18D2SN1 — 18,100 34,000 35,000 53% 2.16 NC 2
XAHC36DBCN1+JME12C2SN1 — 18,200 34,000 34,600 54% 2.22 NC 2
XAHC36DBCN1+JME16C2SN1 — 17,700 33,400 34,200 53% 2.18 NC 2
XAHC48FBCN1+JME16C2SN1 — 17,700 33,800 35,000 52% 2.22 NC 2
XAHD48FBCN1+JME18D2SN1 — 17,800 33,800 35,000 53% 2.22 NC 2

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

Showing 7 of 7 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

  • RHP15036B21 14 pairings

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

  • RHP15036B21 returned to the certified data between August 2025 and September 2026.
  • RHP15036B21 was last in the certified data in records from March 2025; it was not in the list on May 20, 2025.
  • RHP15036B21 was in the certified data by September 2024.

History and definitions

History

First certified record
Most recent certified record
Measurements reported
Jul 14, 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, “RHP15036B21 — certified heat output”. Certified figures dated , checked daily.
https://heatpumplist.com/model/rhp15036b21