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Lennox Gas furnace EL297UH045XV36B*

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Lennox Lennox AHRI Furnace - EL297V two-stage gas furnace Gas furnace Repair, maintenance, and replacement planning
Lennox EL297UH045XV36B* product image

Technical Specifications

Product Specs

  • AHRI unit role: Furnace
  • AHRI model/pattern: EL297UH045XV36B*
  • AHRI records represented: 107
  • AHRI equipment type: Central HP
  • AHRI tonnage: 1.9833333333333334
  • AHRI refrigerant: R-454B
  • Verified catalog model: EL297UH045XV36B*
  • Verified product family: EL297V two-stage gas furnace
  • Verified catalog brand: Lennox
  • Verified model family: EL297V
  • AHRI model/pattern: EL297UH045XV36B*
  • Furnace input capacity: 45,000 BTU/h input
  • AHRI airflow/cabinet code: 36
  • Model variant code: XV
  • AFUE efficiency: up to 97%
  • Heating stages: two-stage
  • Blower/motor: variable speed
  • Cabinet/quiet operation: fully insulated cabinet
  • Blower compartment/cabinet: sealed and insulated
  • Emissions class: standard emissions
  • Rating: ENERGY STAR certified
  • Application: matched gas furnace for split-system air conditioner or heat pump combinations
  • Official product page: https://www.lennox.com/residential/products/heating-cooling/furnaces/el297v
  • Official specifications page: https://www.lennox.com/residential/products/specifications/el297v

Useful troubleshooting details

  • Confirm the installed model and serial number, matched indoor or outdoor equipment, voltage, refrigerant, controls, and AHRI certificate before service or replacement planning.
  • Use the linked AHRI certificates to verify matched-system combinations, rebate conversations, and equipment eligibility before quoting replacement work.
  • Collect photos of the nameplate, equipment access, recent fault history, and comfort symptoms before dispatch or proposal planning.

Certification match

AHRI certificates

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Eligible Central HP <5.4 tons

AHRI 216769566

AHRI 216769566 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-024-230A** and indoor unit CK40[C,U]T-30B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216769570

AHRI 216769570 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-024-230A** and indoor unit CK40[C,U]T-36B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216769574

AHRI 216769574 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-024-230A** and indoor unit CK40HT-24B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216769578

AHRI 216769578 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-024-230A** and indoor unit CK40HT-30B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216769582

AHRI 216769582 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-036-230A** and indoor unit CK40[C,U]T-30B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216769586

AHRI 216769586 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-036-230A** and indoor unit CK40[C,U]T-36B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216769590

AHRI 216769590 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-036-230A** and indoor unit CK40HT-30B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216769594

AHRI 216769594 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-036-230A** and indoor unit CK40HT-36B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216776022

AHRI 216776022 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit SL22KLV-024-230A** and indoor unit CK40[C,U]T-36B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216776032

AHRI 216776032 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit SL22KLV-024-230A** and indoor unit CK40[C,U]T-30B-**+TDR.
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Service planning

How GreenFlow handles EL297UH045XV36B* requests

1

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

2

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

3

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

4

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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