Green Flow Solution logo
Schedule Service

Gas furnace

Back to Heil products

Heil Gas furnace R80MSU-100,000 BTU/h input

Schedule Service Check Availability
Heil Heil AHRI Furnace - R-Series 80 Gas Furnace Gas furnace Repair, maintenance, and replacement planning
Heil R80MSU-100,000 BTU/h input product image

Technical Specifications

Product Specs

  • AHRI unit role: Furnace
  • AHRI model/pattern: *80MSU1002120A*
  • AHRI records represented: 161
  • AHRI equipment type: Central HP
  • AHRI tonnage: 1.9333333333333333
  • AHRI refrigerant: R-454B
  • Verified catalog model: *80MSU1002120A*
  • Verified product family: R-Series 80 Gas Furnace
  • Verified catalog brand: Heil
  • Verified model family: R80MSU
  • AHRI model/pattern: *80MSU1002120A*
  • Nominal input: 100,000 BTU/h input
  • AFUE family: 80%
  • Heating stages: single-stage
  • Blower: multi-speed
  • NOx classification: standard
  • Cabinet width code: 21
  • Application: matched gas furnace for split-system air conditioner or heat pump combinations
  • Official product page: https://www.heil-hvac.com/en/us/products/gas-furnaces/r-series-r80msu

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

View All
Eligible Central HP <5.4 tons

AHRI 216735584

AHRI 216735584 identifies a Mass Save qualified Central HP <5.4 tons from HEIL with outdoor unit D5CUHAH24AAK and indoor unit EA*5X37M21A*.
Eligible Central HP <5.4 tons

AHRI 216736366

AHRI 216736366 identifies a Mass Save qualified Central HP <5.4 tons from HEIL with outdoor unit D5CUHAH24AAK and indoor unit ESH5X24M12A*.
Eligible Central HP <5.4 tons

AHRI 216737245

AHRI 216737245 identifies a Mass Save qualified Central HP <5.4 tons from HEIL with outdoor unit D5CUHAH24AAK and indoor unit ESH5X30M12A*.
Eligible Central HP <5.4 tons

AHRI 216738234

AHRI 216738234 identifies a Mass Save qualified Central HP <5.4 tons from HEIL with outdoor unit D5CUHAH24AAK and indoor unit ESH5X36M12A*.
Eligible Central HP <5.4 tons

AHRI 217391548

AHRI 217391548 identifies a Mass Save qualified Central HP <5.4 tons from HEIL with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X48M12A*.
Eligible Central HP <5.4 tons

AHRI 217391875

AHRI 217391875 identifies a Mass Save qualified Central HP <5.4 tons from HEIL with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217392202

AHRI 217392202 identifies a Mass Save qualified Central HP <5.4 tons from HEIL with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X36M12A*.
Eligible Central HP <5.4 tons

AHRI 217392505

AHRI 217392505 identifies a Mass Save qualified Central HP <5.4 tons from HEIL with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit EA*5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217392792

AHRI 217392792 identifies a Mass Save qualified Central HP <5.4 tons from HEIL with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit EA*5X43M21A*.
Eligible Central HP <5.4 tons

AHRI 217393079

AHRI 217393079 identifies a Mass Save qualified Central HP <5.4 tons from HEIL with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit EA*5X42M21A*.
Loading more

Service planning

How GreenFlow handles R80MSU-100,000 BTU/h input 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.

Additional Services

Brands We Service

Popular cities

Service Areas

Our Happy Customers

Sharad W.

Green Flow and the people who work there are terrific. Vlad and Andre are excellent. Andre was very helpful. He was punctual, respectful, efficient and knowledgeable. He did not try to sell me something I didn’t need ( as others have done before). I was charged $99 which...

Randy J.

Thanks to Andrey for an amazingly quick response to my request for a service call. He diagnosed and fixed my issue within 24 hours of my asking for help. Excellent service. Thanks.

Jahangir R.

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

Michael C.

always available, easy to get a hold of, as a property manager I get lots no heat emergency, usually get to it same day or next day

View All