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FWP15AZ18AJ2N

Friedrich · central heat pump

FWP15AZ18AJ2N is in the certified data as of Sep 19, 2026.

42 certified pairings with 10 different figures. See all

Heating at 47°F

17,100

12,200 at 17°F

9,300 at 5°F

Btu/h, certified

2.20 COP at 5°F

Cooling at 95°F

17,100

Btu/h, certified

EER2 11.7 at 95°F

SEER2 16.0

Heating and cooling by outdoor temperature

Certified heating at 5, 17, and 47°F and cooling at 95°F for FWP15AZ18AJ2N, by outdoor temperature Heating: 9,300 Btu/h at 5°F, 12,200 Btu/h at 17°F, 17,100 Btu/h at 47°F. Cooling: 17,100 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 9,300 5°F 12,200 17°F 17,100 47°F 17,100 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 17,100 Btu/h of heat at 47°F, 12,200 Btu/h at 17°F, and 9,300 Btu/h at 5°F, 54% of its 47°F rating. It delivers 17,100 Btu/h of cooling at 95°F. At 5°F that is 1,700 Btu/h short of the example heating load of 11,000 Btu/h; at 95°F it is 11,600 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 high stage; 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 213841765 · listed by Friedrich · certified Jun 3, 2026 · 10 pairings share these values

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 9,3002.73 kW −17% 2.20
17°Ffull speed 12,2003.58 kW −3% NR
47°Fhigh stage 17,1005.01 kW −5% NR
95°Fcooling, full load 17,1005.01 kW — NR

EER2 11.7 in that test. SEER2 16.0 over the modeled cooling season.

Power use at each temperature

Electrical input in the 5°F full-speed test
1.24kW
Electrical input in the 95°F cooling test
1.46kW
Seasonal average heating COP
2.37

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
9,300 Btu/h
This unit at 5°F median across its pairings
9,300 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 35% of them, at number 159 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.

Closest models by heat at 5°F

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

Certified values for FWP15AZ18AJ2N

42 pairings · 42 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 17,100 Btu/h 17,100 Btu/h
Heat output at 17°F full speed 12,200 Btu/h 11,000–12,300 Btu/h
Heat output at 5°F full speed 9,300 Btu/h 8,100–9,500 Btu/h
Heat output below 5°F NR NR
Cold output 5°F output as a % of the 47°F rating 54%
COP at 5°F full speed 2.20 1.90–2.20
HSPF2 Region IV 8.1 7.8–8.1
Cooling
Cooling capacity at 95°F full-load test 17,100 Btu/h 17,100 Btu/h
EER2 at 95°F 11.7 11.7
SEER2 cooling season 16.0 15.2–16.0
Cooling at other temperatures NR NR
Equipment and listing
Refrigerant R-410A
Compressor Two-stage
Indoor unit TCFZ2417STANM 6 indoor units
FurnaceFR951V0403A17M4 19 furnaces
Cold-climate designation EPA's designation, as published NC NC
ENERGY STAR Most Efficient EPA's designation, as published Yes On some pairings
Where it is sold US and Canada US and Canada
Model string as certified FWP15AZ18AJ2N

Pairings, by indoor-unit class

6 indoor units · 42 certified pairings

One row per indoor unit certified with this outdoor unit.

Furnace paired · 2 indoor units

  1. RCFZ2417STANM brand not stated 9,300 Btu/hat 5°F, full speed

    19 pairings, 19 with a furnace · 47°F 17,100 Btu/h · 95°F cooling 17,100 Btu/h · Cold output 54% · COP 2.20

  2. TCFZ2417STANM brand not stated 9,300 Btu/hat 5°F, full speed

    19 pairings, 19 with a furnace · 47°F 17,100 Btu/h · 95°F cooling 17,100 Btu/h · Cold output 54% · COP 2.20

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
RCFZ2417STANM — 9,300 17,100 17,100 54% 2.20 NC 19
TCFZ2417STANM — 9,300 17,100 17,100 54% 2.20 NC 19

Air handler · 4 indoor units

  1. FRH2TZ2417STANN brand not stated 9,200 Btu/hat 5°F, full speed

    1 pairing · 47°F 17,100 Btu/h · 95°F cooling 17,100 Btu/h · Cold output 54% · COP 2.10

  2. FRH2VZ2417STANN brand not stated 9,200 Btu/hat 5°F, full speed

    1 pairing · 47°F 17,100 Btu/h · 95°F cooling 17,100 Btu/h · Cold output 54% · COP 2.20

  3. FRH3VZ2417STACN brand not stated 8,100 Btu/hat 5°F, full speed

    1 pairing · 47°F 17,100 Btu/h · 95°F cooling 17,100 Btu/h · Cold output 47% · COP 2.00

  4. RF2TZ2421STANS brand not stated 8,300 Btu/hat 5°F, full speed

    1 pairing · 47°F 17,100 Btu/h · 95°F cooling 17,100 Btu/h · Cold output 49% · COP 1.90

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
FRH2TZ2417STANN — 9,200 17,100 17,100 54% 2.10 NC 1
FRH2VZ2417STANN — 9,200 17,100 17,100 54% 2.20 NC 1
FRH3VZ2417STACN — 8,100 17,100 17,100 47% 2.00 NC 1
RF2TZ2421STANS — 8,300 17,100 17,100 49% 1.90 NC 1

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

Showing 6 of 6 indoor units

Sold as, and units with identical certified values

Brands listing this model number

Model number as listed

  • FWP15AZ18AJ2N 42 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.

Other model numbers with identical certified values

2 units share this record. 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

History

First certified record
Most recent certified record
Measurements reported
Jun 3, 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, “FWP15AZ18AJ2N — certified heat output”. Certified figures dated , checked daily.
https://heatpumplist.com/model/frp15az18aj2n