The efficient Trane S8B1 40000 BTU 80% AFUE Single-Stage Upflow/Horizontal Gas Furnace S8B1A040M3PS is a one-of-a-kind heating system from Trane. It is equipped with Silicon Nitride Hot Surface igniter that provides a reliable ignition system for extended life. Its Multi-Port In-Shot Burners Shape up the flame cone properly to provide maximum efficiency by using less fuel and producing maximum heat.
Heavy Steel Insulated Cabinet ensures the unit is durable and environment-friendly, as it minimizes operation noise. High-efficiency ECM and Vortica® II Blower also contribute to the quiet operation. Apart from being efficient in heat exchange and enhancing airflow, the Aluminized Steel Heat Exchanger of this Gas Furnace unit can withstand high temperatures and resists corrosion.
Features of Trane S8B1 40000 BTUh 80% AFUE Single-Stage Gas Furnace S8B1A040M3PS
- Silicon Nitride Hot Surface Igniter that provides a reliable ignition system to extend
- Multi-Port In-Shot Burners Shape up the flame cone properly to provide maximum efficiency by using less fuel
- Heavy Steel Insulated Cabinet for durability
- Aluminized Steel Heat Exchanger for efficient heat exchange & resists corrosion
- Formed Steel Door with Smoked Acrylic View Windows offers an attractive appearance
- The high-efficiency Electronically Commutated Motor (ECM) makes the system cost-efficient
- Patented Vortica® II Blower works quietly while making the heating unit efficient
Specifications of Trane 40000 BTUh 80% AFUE S8B1 Series Single-Stage Gas Furnace S8B1A040M3PS
Gas Furnace Specifications | |
| Brand | Trane |
| Series | S8B1 |
| Model | S8B1A040M3PS |
| Capacity | 40000 BTUh |
| AFUE | 80% |
| Stages | Single Stage |
| Dimension | 34” x 14.5” x 28.75” |
| Filter Size | 14″ x 25″ x 1″ |
| ENERGY STAR® qualified | No |

Daniel (verified owner) –
Great value—cooling is fast and even.
Daniel (verified owner) –
Keeps my home perfectly cool. Love it!
Samuel (verified owner) –
Compact, efficient, and cools the room in no time.
Riley (verified owner) –
Amazing efficiency and whisper-quiet operation.
Patrick (verified owner) –
Perfect temperature control with handy app features.
Owen (verified owner) –
Compact, efficient, and cools the room in no time.
Matthew (verified owner) –
Great value—cooling is fast and even.
Henry (verified owner) –
Cools quickly and runs quietly. Perfect for summer!
Paul (verified owner) –
Great value—cooling is fast and even.
Zohar (verified owner) –
Quiet, effective, and easy to maintain.
Nathaniel (verified owner) –
Very well worth the money.
Anthony (verified owner) –
Powerful cooling, and my bills are lower!