Heat Pump List
Menu

Sections

Tools

YH618E2S11

YH618E2S11 is in the certified data.

Its certified full-speed heating output at 5°F is 8,700–9,100 Btu/h, 53–54% of its 47°F rating, depending on the pairing.

York · central heat pump

YH618E2S11 is in the certified data as of Sep 19, 2026.

288 certified pairings with 45 different figures. See all

Heating at 47°F

16,400

11,000 at 17°F

8,900 at 5°F

Btu/h, certified

2.26 COP at 5°F

Cooling at 95°F

17,000

Btu/h, certified

EER2 12.5 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 YH618E2S11, by outdoor temperature Heating: 8,900 Btu/h at 5°F, 11,000 Btu/h at 17°F, 16,400 Btu/h at 47°F. Cooling: 17,000 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 8,900 5°F 11,000 17°F 16,400 47°F 17,000 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 16,400 Btu/h of heat at 47°F, 11,000 Btu/h at 17°F, and 8,900 Btu/h at 5°F, 54% of its 47°F rating. It delivers 17,000 Btu/h of cooling at 95°F. At 5°F that is 2,100 Btu/h short of the example heating load of 11,000 Btu/h; at 95°F it is 11,500 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 one 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 218416690 · listed by York · certified Jul 15, 2026 · 24 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 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°Fone compressor speed 8,9002.61 kW −21% 2.26
17°Fone compressor speed 11,0003.22 kW −13% NR
47°Fone compressor speed 16,4004.81 kW −9% NR
95°Fcooling, full load 17,0004.98 kW — NR

EER2 12.5 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
1.15kW
Electrical input in the 95°F cooling test
1.36kW
Seasonal average heating COP
2.29

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
8,900 Btu/h
This unit at 5°F median across its pairings
8,900 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 30% of them, at number 171 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 YH618E2S11

288 pairings · 288 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 16,400 Btu/h 16,100–17,000 Btu/h
Heat output at 17°F full speed 11,000 Btu/h 10,700–11,300 Btu/h
Heat output at 5°F full speed 8,900 Btu/h 8,700–9,100 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 2.26 2.26–2.34
HSPF2 Region IV 7.8 7.8–8.0
Cooling
Cooling capacity at 95°F full-load test 17,000 Btu/h 17,000–18,300 Btu/h
EER2 at 95°F 12.5 12.0–12.5
SEER2 cooling season 15.2 15.2–16.0
Cooling at other temperatures NR NR
Equipment and listing
Refrigerant R-454B
Compressor Single stage
Indoor unit CTF24B5ABS1 60 indoor units
FurnaceTM8E100B12MP11 36 furnaces
Cold-climate designation EPA's designation, as published NC NC
ENERGY STAR Most Efficient EPA's designation, as published No On some pairings
Where it is sold US and Canada US and Canada
Model string as certified YH618E2S11

Pairings, by indoor-unit class

60 indoor units · 288 certified pairings

One row per indoor unit certified with this outdoor unit.

Furnace paired · 10 indoor units

  1. CTF30B5ACS1 brand not stated 8,900 Btu/hat 5°F, full speed

    21 pairings, 21 with a furnace · 47°F 16,700 Btu/h · 95°F cooling 17,000 Btu/h · Cold output 54% · COP 2.28

  2. CTU30B5XCS1+TXV brand not stated 8,900 Btu/hat 5°F, full speed

    21 pairings, 21 with a furnace · 47°F 16,700 Btu/h · 95°F cooling 17,000 Btu/h · Cold output 54% · COP 2.28

  3. CTF30B5ACS2 brand not stated 8,900 Btu/hat 5°F, full speed

    19 pairings, 19 with a furnace · 47°F 16,700 Btu/h · 95°F cooling 17,000 Btu/h · Cold output 54% · COP 2.30

  4. CTU30B5XCS2+TXV brand not stated 8,900 Btu/hat 5°F, full speed

    19 pairings, 19 with a furnace · 47°F 16,700 Btu/h · 95°F cooling 17,000 Btu/h · Cold output 54% · COP 2.30

  5. CTF24B5ABS1 brand not stated 8,900 Btu/hat 5°F, full speed

    17 pairings, 17 with a furnace · 47°F 16,400 Btu/h · 95°F cooling 17,000 Btu/h · Cold output 54% · COP 2.28

  6. CTM30B5ACS1 brand not stated 9,000 Btu/hat 5°F, full speed

    17 pairings, 17 with a furnace · 47°F 16,700 Btu/h · 95°F cooling 17,000 Btu/h · Cold output 54% · COP 2.28

  7. CTF24B5ABS2 brand not stated 8,900 Btu/hat 5°F, full speed

    16 pairings, 16 with a furnace · 47°F 16,400 Btu/h · 95°F cooling 17,000 Btu/h · Cold output 54% · COP 2.28

  8. CTM30B5ACS2 brand not stated 9,000 Btu/hat 5°F, full speed

    16 pairings, 16 with a furnace · 47°F 16,700 Btu/h · 95°F cooling 17,000 Btu/h · Cold output 54% · COP 2.28

  9. CTF24A5ABS1 brand not stated 8,900 Btu/hat 5°F, full speed

    14 pairings, 14 with a furnace · 47°F 16,400 Btu/h · 95°F cooling 17,000 Btu/h · Cold output 54% · COP 2.26

  10. CTF24A5ABS2 brand not stated 8,900 Btu/hat 5°F, full speed

    14 pairings, 14 with a furnace · 47°F 16,400 Btu/h · 95°F cooling 17,000 Btu/h · Cold output 54% · COP 2.26

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
CTF30B5ACS1 — 8,900 16,700 17,000 54% 2.28 NC 21
CTU30B5XCS1+TXV — 8,900 16,700 17,000 54% 2.28 NC 21
CTF30B5ACS2 — 8,900 16,700 17,000 54% 2.30 NC 19
CTU30B5XCS2+TXV — 8,900 16,700 17,000 54% 2.30 NC 19
CTF24B5ABS1 — 8,900 16,400 17,000 54% 2.28 NC 17
CTM30B5ACS1 — 9,000 16,700 17,000 54% 2.28 NC 17
CTF24B5ABS2 — 8,900 16,400 17,000 54% 2.28 NC 16
CTM30B5ACS2 — 9,000 16,700 17,000 54% 2.28 NC 16
CTF24A5ABS1 — 8,900 16,400 17,000 54% 2.26 NC 14
CTF24A5ABS2 — 8,900 16,400 17,000 54% 2.26 NC 14

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

Showing 10 of 60 indoor units All 288 certified pairings

Sold as, and units with identical certified values

Brands listing this model number

Model number as listed

  • YH618E2S11 288 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

History

First certified record
Most recent certified record
Measurements reported
Jul 15, 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, “YH618E2S11 — certified heat output”. Certified figures dated , checked daily.
https://heatpumplist.com/model/yh618e2s11