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Lennox Gas furnace EL297UH070XE36B*

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Lennox Lennox AHRI Furnace - EL297E two-stage gas furnace Gas furnace Repair, maintenance, and replacement planning
Lennox EL297UH070XE36B* product image

Technical Specifications

Product Specs

  • AHRI unit role: Furnace
  • AHRI model/pattern: EL297UH070XE36B*
  • AHRI records represented: 134
  • AHRI equipment type: Central HP
  • AHRI tonnage: 1.9333333333333333
  • AHRI refrigerant: R-454B
  • Verified catalog model: EL297UH070XE36B*
  • Verified product family: EL297E two-stage gas furnace
  • Verified catalog brand: Lennox
  • Verified model family: EL297E
  • AHRI model/pattern: EL297UH070XE36B*
  • Furnace input capacity: 70,000 BTU/h input
  • AHRI airflow/cabinet code: 36
  • Model variant code: XE
  • AFUE efficiency: up to 97%
  • Heating stages: two-stage
  • Blower/motor: constant torque
  • 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/el297e
  • Official specifications page: https://www.lennox.com/residential/products/specifications/el297e

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 217121543

AHRI 217121543 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL21KLV-024-230A** and indoor unit CK40[C,U]T-30B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217121585

AHRI 217121585 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL21KLV-036-230A** and indoor unit CK40[C,U]T-36B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217443182

AHRI 217443182 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL21KLV-024-230A** and indoor unit CK40HT-30B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217443328

AHRI 217443328 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL21KLV-036-230A** and indoor unit CK40HT-30B-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217449745

AHRI 217449745 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 217449764

AHRI 217449764 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 217449788

AHRI 217449788 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 217449807

AHRI 217449807 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 217449833

AHRI 217449833 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 217449858

AHRI 217449858 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.
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Service planning

How GreenFlow handles EL297UH070XE36B* 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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Our Happy Customers

Jahangir R.

They were very organized to communicate and be on time to come to look at my air condition to fix it.

Anna F.

They showed up within an hour of me making the call on a Sunday. They fixed our system and taught us how to replace the fuse in the future. We would definitely call again.

Anna G.

They quickly identified the issue with the heating system and fixed it efficiently. He explained everything clearly and made sure I understood what was going on. Very professional and reliable, extremely satisfied with the service.

Michele Z.

Andrey was professional, prompt, smart, thorough and exceedingly pleasant. We are likely switching our current HVAC company to Green Flow.

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