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Quick specs
Brand
Rheem
BTU Input
75,000 BTU/h
BTU Output
60,000 BTU/h
AFUE
80%
Heating Stages
Single-Stage
Blower Motor
3/4 HP 5-Speed Constant Torque ECM
Cabinet Width
21"
Airflow Configuration
Upflow/Horizontal
Max Cooling Airflow
1,608 CFM
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
Rheem Endeavor Line 80% AFUE 75,000 BTU Single-Stage Upflow/Horizontal Gas Furnace R801T0754A21UHSNAS
Rheem Endeavor Line Classic Series·80% AFUE Single-Stage
$2,028.71
-
- Free shipping — most items ship by the next day
Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.
Secure payment
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Rheem Endeavor Line 80% AFUE 75,000 BTU Single-Stage Upflow/Horizontal Gas Furnace R801T0754A21UHSNAS
Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.
Need help? (888) 292-0874
- Free shipping — most items ship by the next day
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
In stock
In most items, small items ship same day. Complete systems ship next business day.
$2,028.71
-
Need help? (888) 292-0874
- Free shipping — most items ship by the next day
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
Quick specs
Brand
Rheem
BTU Input
75,000 BTU/h
BTU Output
60,000 BTU/h
AFUE
80%
Heating Stages
Single-Stage
Blower Motor
3/4 HP 5-Speed Constant Torque ECM
Cabinet Width
21"
Airflow Configuration
Upflow/Horizontal
Max Cooling Airflow
1,608 CFM
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
This Rheem Endeavor Line Classic Series 80% AFUE Single-Stage Gas Furnace R801T0754A21UHSNAS is a solid, value-oriented choice for residential replacements or new installations needing a reliable 75k BTU upflow/horizontal furnace with modern diagnostic features and a compact footprint.
- Rheem Endeavor Line Classic Series
- 80% AFUE efficiency – Delivers reliable heating while helping keep operating costs reasonable for a standard-efficiency furnace.
- Single-stage heating – Simple, dependable operation with lower installation and service complexity.
- Constant Torque ECM blower motor – Provides consistent airflow, better efficiency than a standard PSC motor, and improved comfort and humidity control when paired with air conditioning.
- PlusOne® Diagnostics – Industry-first 7-segment LED display for fast, accurate troubleshooting and reduced service time.
- PlusOne® Ignition System – Proven Direct Spark Ignition (DSI) for reliable starts and long service life.
- Low-profile 34″ cabinet – Ideal for space-constrained installations (closets, attics, crawl spaces, etc.).
- Upflow/Horizontal multipoise design – Flexible installation options to fit a wide range of home layouts.
- Removable aluminized steel primary heat exchanger – Excellent corrosion resistance and thermal durability; removable design improves serviceability.
- Hemmed cabinet & door edges + quarter-turn fasteners – Tool-less access for safer, faster maintenance.
- Insulated blower compartment & solid bottom – Quieter operation and cleaner installation.
- Built-in connections – Humidifier, electronic air cleaner, and twinning provisions for system expandability.
- Natural gas ready (LP convertible) – Field-convertible to propane with the appropriate kit.
- 21″ cabinet width – Offers greater airflow capacity while supporting up to 4-ton cooling (≈1,608 CFM).
- Input: 75,000 BTU/h
- Output: 60,000 BTU/h
- AFUE: 80%
- Configuration: Upflow / Horizontal
- Cooling capacity: Up to 4 tons
- Blower motor: ¾ HP 5-speed Constant Torque ECM
- Cabinet dimensions: 21″ W × 29.59″ D × 34″ H
- Weight: approx. 135–140 lbs
- Voltage: 115 V / 60 Hz / 1-phase
- Width: 21 in
- Depth: 29.59 in
- Height: 34 in
Key features
- Rheem Endeavor Line Classic Series — value-oriented, reliable gas heat
- 80% AFUE Single-Stage — dependable residential heating
- Modern Diagnostics — simplifies service and troubleshooting
- Compact Footprint — upflow/horizontal installation
Why homeowners choose NAW
Genuine OEM parts
Every part we sell is the real thing — authorized, factory-genuine, and backed by the full manufacturer warranty.
Easy online ordering
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30-day hassle-free returns
Ordered the wrong part? Send it back within 30 days.
Help when you need it
Not sure if this is the right part? Call us at (888) 292-0874 and we’ll help you find the correct replacement.
Customer reviews
What buyers are saying
Verified reviews from customers who purchased this product.
5.0
8 verified reviews
VD
Valerie D
The Rheem 80% AFUE 75,000 BTU Single Stage Upflow/Horizontal Gas Furnace 21″ Wide blew me away with its powerful heating and smooth performance at an excellent price. I was surprised by how quickly it warmed the entire space and how solid and well-built the equipment feels.
JF
James F
I was blown away by the outstanding heating performance and efficiency of this Rheem 80% AFUE 75,000 BTU Single Stage Upflow/Horizontal Gas Furnace, delivering steady warmth while keeping energy costs low. With exceptional quality at an incredible price, this furnace is a fantastic investment for comfort, reliability, and long-term savings.
TP
Trevor P
I am thoroughly impressed with the Rheem 80% AFUE 75,000 BTU Single Stage Upflow/Horizontal Gas Furnace! For an amazing price, this furnace delivers outstanding performance, efficiently heating my home and ensuring it stays warm and comfortable no matter the weather outside!
HF
Hendrix F
The Rheem 80% AFUE 75,000 BTU Gas Furnace, with a 21-inch width, is a powerhouse, providing robust and consistent heating that transformed our home’s comfort level! Given its reliable performance and sturdy build, the price was shockingly low, making this furnace an excellent choice for anyone seeking quality heating at a fantastic value.
IH
Ismael H
I recently purchased the Rheem 80% AFUE 75,000 BTU Single Stage Upflow/Horizontal Gas Furnace 21″ Wide, and I’m thrilled with the fantastic price, outstanding equipment quality, and the remarkable performance that has truly exceeded my expectations!
TA
Tess A
I am beyond impressed with the Rheem 80% AFUE 75,000 BTU Gas Furnace – the price is unbelievably reasonable for the outstanding equipment and performance it offers. The single-stage design and spacious 21″ width make it a heating powerhouse, providing exceptional warmth and efficiency at a surprisingly affordable cost!
B
Brad
Buckle up for a thrilling home heating upgrade with the Rheem 80% AFUE 75,000 BTU Single Stage Upflow/Horizontal Gas Furnace! The jaw-dropping price, combined with its wide-reaching warmth and top-notch performance, has elevated my comfort to new heights – an absolute steal for those craving a cozy haven without breaking the bank.
G
Gerald
Compact brilliance at an unbelievable price! The Rheem 80% AFUE 75,000 BTU Single Stage Upflow/Horizontal Gas Furnace, merely 21″ wide, impresses with its outstanding heating efficiency and top-notch equipment, all at a surprisingly competitive cost. Its single-stage operation ensures dependable heating, delivering superior comfort and efficiency without compromising affordability.
