ARMSTRONG AIR 26U35 110,000 BTU 80% AFUE Gas Furnace, Upflow / Horizontal, 120V/1-Phase/60Hz
The ARMSTRONG AIR 26U35 is a 110,000 BTU gas furnace rated at 80% AFUE, providing the heating stage of a residential split system and pairing with a matched coil and condenser or heat pump. It installs in a upflow / horizontal orientation.
Key specifications include a heating output of 89,000 BTU, a 1/2" gas connection, 120V 1-Phase 60Hz power.
Confirm heating load, gas supply, venting, and airflow orientation against local code before ordering. Match to an AHRI-certified coil and condenser for system performance.
Specifications
| Heating Input (BTU) | 110000 |
| Heating Output (BTU) | 58000, 89000 |
| AFUE (%) | 80 |
| Furnace Type | Gas |
| Airflow Direction | Upflow / Horizontal |
| Voltage | 120 VAC |
| Phase | Single |
| Gas Connection | 1/2" |
| ENERGY STAR | No |
| Cabinet Color | Gray |
| Certifications | AHRI Certified, CSA Design Certified |
Why ARMSTRONG AIR
ARMSTRONG AIR HVAC equipment. AHRI Certified, CSA Design Certified listed. See the model's warranty certificate for coverage terms.
Product Information
Product Information
Shipping & Returns
Shipping & Returns

ARMSTRONG AIR 26U35 110,000 BTU 80% AFUE Gas Furnace, Upflow / Horizontal, 120V/1-Phase/60Hz
ARMSTRONG AIR 26U35 110,000 BTU 80% AFUE Gas Furnace, Upflow / Horizontal, 120V/1-Phase/60Hz
The ARMSTRONG AIR 26U35 is a 110,000 BTU gas furnace rated at 80% AFUE, providing the heating stage of a residential split system and pairing with a matched coil and condenser or heat pump. It installs in a upflow / horizontal orientation.
Key specifications include a heating output of 89,000 BTU, a 1/2" gas connection, 120V 1-Phase 60Hz power.
Confirm heating load, gas supply, venting, and airflow orientation against local code before ordering. Match to an AHRI-certified coil and condenser for system performance.
Specifications
| Heating Input (BTU) | 110000 |
| Heating Output (BTU) | 58000, 89000 |
| AFUE (%) | 80 |
| Furnace Type | Gas |
| Airflow Direction | Upflow / Horizontal |
| Voltage | 120 VAC |
| Phase | Single |
| Gas Connection | 1/2" |
| ENERGY STAR | No |
| Cabinet Color | Gray |
| Certifications | AHRI Certified, CSA Design Certified |
Why ARMSTRONG AIR
ARMSTRONG AIR HVAC equipment. AHRI Certified, CSA Design Certified listed. See the model's warranty certificate for coverage terms.
Original: $2,597.14
-65%$2,597.14
$909.00Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The ARMSTRONG AIR 26U35 is a 110,000 BTU gas furnace rated at 80% AFUE, providing the heating stage of a residential split system and pairing with a matched coil and condenser or heat pump. It installs in a upflow / horizontal orientation.
Key specifications include a heating output of 89,000 BTU, a 1/2" gas connection, 120V 1-Phase 60Hz power.
Confirm heating load, gas supply, venting, and airflow orientation against local code before ordering. Match to an AHRI-certified coil and condenser for system performance.
Specifications
| Heating Input (BTU) | 110000 |
| Heating Output (BTU) | 58000, 89000 |
| AFUE (%) | 80 |
| Furnace Type | Gas |
| Airflow Direction | Upflow / Horizontal |
| Voltage | 120 VAC |
| Phase | Single |
| Gas Connection | 1/2" |
| ENERGY STAR | No |
| Cabinet Color | Gray |
| Certifications | AHRI Certified, CSA Design Certified |
Why ARMSTRONG AIR
ARMSTRONG AIR HVAC equipment. AHRI Certified, CSA Design Certified listed. See the model's warranty certificate for coverage terms.












