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Lennox Gas furnace EL280UH045E36A*

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Lennox Lennox AHRI Furnace - EL280E two-stage gas furnace Gas furnace Repair, maintenance, and replacement planning
Lennox EL280UH045E36A* product image

Technical Specifications

Product Specs

  • AHRI unit role: Furnace
  • AHRI model/pattern: EL280UH045E36A*
  • AHRI records represented: 130
  • AHRI equipment type: Central HP
  • AHRI tonnage: 1.9
  • AHRI refrigerant: R-454B
  • Verified catalog model: EL280UH045E36A*
  • Verified product family: EL280E two-stage gas furnace
  • Verified catalog brand: Lennox
  • Verified model family: EL280E
  • AHRI model/pattern: EL280UH045E36A*
  • Furnace input capacity: 45,000 BTU/h input
  • AHRI airflow/cabinet code: 36
  • Model variant code: E
  • AFUE efficiency: up to 80%
  • Heating stages: two-stage
  • Blower/motor: constant torque
  • Cabinet/quiet operation: fully insulated cabinet
  • Blower compartment/cabinet: sealed and insulated
  • Emissions class: standard emissions
  • 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/el280e
  • Official specifications page: https://www.lennox.com/residential/products/specifications/el280e

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 217121537

AHRI 217121537 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-30A-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217121969

AHRI 217121969 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-36A-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189716

AHRI 217189716 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-30A-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189733

AHRI 217189733 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-36A-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189750

AHRI 217189750 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-024-230A** and indoor unit CK40HT-24A-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189767

AHRI 217189767 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-024-230A** and indoor unit CK40HT-30A-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189789

AHRI 217189789 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-30A-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189812

AHRI 217189812 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-36A-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189835

AHRI 217189835 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-036-230A** and indoor unit CK40HT-30A-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189858

AHRI 217189858 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-036-230A** and indoor unit CK40HT-36A-**+TDR.
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Service planning

How GreenFlow handles EL280UH045E36A* 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

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.

Neal V.

In an industry that often fraught with contractors taking advantage of homeowners, Andrey was honest with his assessment and willing to install a product acquired elsewhere (most want that margin themselves), patiently answered my questions (I’m an engineer so like to understand what’s happening), and proactively offered practical...

Melissa S.

The repair person came quickly and was super efficient and polite, and showed me what to do next time. He gave my dog a quick pay and was off again.

Jahangir R.

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

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