Heat Pump List
Menu

Sections

Tools

EL21KLV-060-230A

EL21KLV-060-230A is in the certified data.

Its certified full-speed heating output at 5°F is 31,000–38,500 Btu/h, 58–73% of its 47°F rating (tests at different compressor speeds), depending on the pairing.

Lennox · central heat pump

EL21KLV-060-230A is in the certified data as of Sep 19, 2026. EL21KLV-060-230A changed its certified heat output at 47°F on 10 pairings in the certified data between August 2025 and September 2026. The new figure is higher on 1 and lower on 9.

106 certified pairings with 78 different figures. See all

Heating at 47°F

53,000

44,000 at 17°F

34,800 at 5°F

Btu/h, certified

2.16 COP at 5°F

Cooling at 95°F

55,000

Btu/h, certified

EER2 12.0 at 95°F

SEER2 20.5

Heating and cooling by outdoor temperature

Certified heating at 5, 17, and 47°F and cooling at 95°F for EL21KLV-060-230A, by outdoor temperature Heating: 34,800 Btu/h at 5°F, 44,000 Btu/h at 17°F, 53,000 Btu/h at 47°F. Cooling: 55,000 Btu/h at 95°F. The bars start at zero. Median of 4.5-ton central models: 40,000 Btu/h at 5°F, 37,800 Btu/h at 17°F, 56,000 Btu/h at 47°F, 55,000 Btu/h at 95°F. 0 20,000 40,000 60,000 Btu/h 34,800 5°F 44,000 17°F 53,000 47°F 55,000 95°F Outdoor temperature (°F)
  • Heating output
  • Cooling output
  • Median of 4.5-ton central models
  • Example heating load
  • Example cooling load
  • Frosting range, 17 to 45°F

This pairing delivers 53,000 Btu/h of heat at 47°F, 44,000 Btu/h at 17°F, and 34,800 Btu/h at 5°F, 66% of its 47°F rating. It delivers 55,000 Btu/h of cooling at 95°F. At 5°F that is 5,200 Btu/h short of the example heating load of 40,000 Btu/h; at 95°F it is 35,000 Btu/h above the example cooling load of 20,000 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 4.5-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 1,650 sq ft where winters reach 5°F: heating runs from 40,000 Btu/h at 5°F to 0 at 65°F, and cooling runs from 0 at 65°F to 20,000 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 217117023 · listed by Lennox · certified Oct 27, 2025 · 4 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 4.5-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 34,80010.20 kW −13% 2.16
17°Ffull speed 44,00012.90 kW +16% NR
47°Fnormal speed 53,00015.53 kW −5% NR
95°Fcooling, full load 55,00016.12 kW — NR

EER2 12.0 in that test. SEER2 20.5 over the modeled cooling season.

Power use at each temperature

Electrical input in the 5°F full-speed test
4.72kW
Electrical input in the 95°F cooling test
4.58kW
Seasonal average heating COP
2.49

These exclude backup resistance heat.

Updated Sep 19, 2026 · Methodology

How it compares with other 54,000 Btu heat pumps

4.5-ton central models

This pairing at 5°F
34,800 Btu/h
This unit at 5°F median across its pairings
34,800 Btu/h
Median of 4.5-ton central models at 5°F
40,000 Btu/h
Models in this group
343

This unit is above 28% of them, at number 247 of 343 by heat at 5°F. The middle half of the group runs 32,000 to 45,000 Btu/h.

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

Closest models by heat at 5°F

Every 54,000 Btu (4.5-ton) unit, ranked by cooling efficiency, then heating efficiency

Certified values for EL21KLV-060-230A

106 pairings · 106 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 53,000 Btu/h 52,000–55,500 Btu/h
Heat output at 17°F full speed 44,000 Btu/h 40,000–46,000 Btu/h
Heat output at 5°F full speed 34,800 Btu/h 31,000–38,500 Btu/h
Heat output below 5°F NR NR
Cold output 5°F output as a % of the 47°F rating 66%
COP at 5°F full speed 2.16 2.06–2.18
HSPF2 Region IV 8.5 8.2–9.0
Cooling
Cooling capacity at 95°F full-load test 55,000 Btu/h 52,500–56,000 Btu/h
EER2 at 95°F 12.0 11.0–12.2
SEER2 cooling season 20.5 16.0–20.5
Cooling at other temperatures NR NR
Equipment and listing
Refrigerant R-454B
Compressor Variable speed
Indoor unit CK40[C,U]T-60C-**+TDR 11 indoor units
FurnaceSL280UH080NV60C* 34 furnaces
Cold-climate designation EPA's designation, as published NC On some pairings
ENERGY STAR Most Efficient EPA's designation, as published Yes On some pairings
Where it is sold United States US and Canada
Model string as certified EL21KLV-060-230A**

Pairings, by indoor-unit class

11 indoor units · 106 certified pairings

One row per indoor unit certified with this outdoor unit.

Furnace paired · 4 indoor units

  1. CK40HT-51/61C-**+TDR brand not stated 31,600 Btu/hat 5°F, full speed

    21 pairings, 21 with a furnace · 47°F 54,500 Btu/h · 95°F cooling 53,000 Btu/h · Cold output 58% · COP 2.08

  2. CK40[C,U]T-49C-**+TDR brand not stated 35,600 Btu/hat 5°F, full speed

    20 pairings, 20 with a furnace · 47°F 54,250 Btu/h · 95°F cooling 54,500 Btu/h · Cold output 66% · COP 2.12

  3. CK40HT-60D-**+TDR brand not stated 35,400 Btu/hat 5°F, full speed

    17 pairings, 17 with a furnace · 47°F 53,000 Btu/h · 95°F cooling 54,500 Btu/h · Cold output 67% · COP 2.08

  4. CK40HT-48C-**+TDR brand not stated 32,700 Btu/hat 5°F, full speed

    6 pairings, 6 with a furnace · 47°F 54,500 Btu/h · 95°F cooling 52,750 Btu/h · Cold output 60% · COP 2.16

Indoor units in the furnace paired 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
CK40HT-51/61C-**+TDR — 31,600 54,500 53,000 58% 2.08 NC 21
CK40[C,U]T-49C-**+TDR — 35,600 54,250 54,500 66% 2.12 NC 20
CK40HT-60D-**+TDR — 35,400 53,000 54,500 67% 2.08 NC 17
CK40HT-48C-**+TDR — 32,700 54,500 52,750 60% 2.16 NC 6

Air handler · 6 indoor units

  1. CK40[C,U]T-60C-**+TDR brand not stated 34,800 Btu/hat 5°F, full speed

    28 pairings, 27 with a furnace · 47°F 53,000 Btu/h · 95°F cooling 55,000 Btu/h · Cold output 65% · COP 2.16

  2. CK40[C,U]T-60D-**+TDR brand not stated 34,400 Btu/hat 5°F, full speed

    9 pairings, 8 with a furnace · 47°F 53,000 Btu/h · 95°F cooling 53,000 Btu/h · Cold output 65% · COP 2.14

  3. CBK45UHET-060-230-** brand not stated 38,500 Btu/hat 5°F, full speed

    1 pairing · 47°F 52,500 Btu/h · 95°F cooling 54,000 Btu/h · Cold output 73% · COP 2.16

  4. CBK45UHVT-060-230-** brand not stated 38,500 Btu/hat 5°F, full speed

    1 pairing · 47°F 52,500 Btu/h · 95°F cooling 54,000 Btu/h · Cold output 73% · COP 2.16

  5. CBK47UHET-060-230-** brand not stated 38,000 Btu/hat 5°F, full speed

    1 pairing · 47°F 54,000 Btu/h · 95°F cooling 53,500 Btu/h · Cold output 70% · COP 2.16

  6. CBK47UHET-060-460-** brand not stated 38,000 Btu/hat 5°F, full speed

    1 pairing · 47°F 55,000 Btu/h · 95°F cooling 53,500 Btu/h · Cold output 69% · COP 2.16

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
CK40[C,U]T-60C-**+TDR — 34,800 53,000 55,000 65% 2.16 NC 28
CK40[C,U]T-60D-**+TDR — 34,400 53,000 53,000 65% 2.14 NC 9
CBK45UHET-060-230-** — 38,500 52,500 54,000 73% 2.16 Yes 1
CBK45UHVT-060-230-** — 38,500 52,500 54,000 73% 2.16 Yes 1
CBK47UHET-060-230-** — 38,000 54,000 53,500 70% 2.16 NC 1
CBK47UHET-060-460-** — 38,000 55,000 53,500 69% 2.16 NC 1

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

Showing 10 of 11 indoor units All 106 certified pairings

Sold as, and units with identical certified values

Brands listing this model number

Model number as listed

  • EL21KLV-060-230A** 106 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

  • EL21KLV-060-230A changed its certified heat output at 47°F on 10 pairings in the certified data between August 2025 and September 2026. The new figure is higher on 1 and lower on 9.
  • EL21KLV-060-230A changed its certified heat output at 47°F on 70 pairings in the certified data between June 2025 and September 2026. The new figure is higher on 18 and lower on 52.
  • EL21KLV-060-230A changed its certified heat output at 5°F on AHRI certificate 217117029 from 35,000 Btu/h to 35,200 Btu/h in the certified data between June 2025 and August 2025.
  • EL21KLV-060-230A changed its certified heat output at 47°F on at least 19 pairings in the certified data between June 2025 and August 2025. The new figure is higher on 15 and lower on 4.
  • EL21KLV-060-230A changed its certified heat output at 17°F on AHRI certificate 217117029 from 44,000 Btu/h to 44,500 Btu/h in the certified data between June 2025 and August 2025.
  • EL21KLV-060-230A first appeared in the certified data between March 2025 and May 2025.

History and definitions

History

First certified record
Most recent certified record
Measurements reported
Oct 27, 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, “EL21KLV-060-230A — certified heat output”. Certified figures dated , checked daily.
https://heatpumplist.com/model/el21klv-060-230a