Weatherking W801T1255A24DZSNAS Gas Furnace 125000 Btu/h

Product Description

The WEATHERKING W801T1255A24DZSNAS is a downflow natural gas furnace rated at 125,000 BTU/h with 80% AFUE efficiency. It uses a single-stage heating operation and an electronically commutated motor (ECM) for blower control, which delivers variable airflow with lower electrical consumption compared to standard PSC motors. This unit is designed for forced-air heating systems where the airflow discharges downward through the bottom of the cabinet. Licensed HVAC technicians install and commission this type of equipment in residential and light-commercial applications.

The W801T1255A24DZSNAS is suited for downflow installations where the supply duct connects beneath the unit, typical of installations over a crawl space, in a closet with under-floor ductwork, or on a platform above a slab. The 125,000 BTU/h input capacity and 5-ton nominal cooling configuration make it appropriate for larger residential structures or smaller commercial spaces requiring significant heating capacity. Natural gas is the specified fuel type for this furnace.

Key Features

• 80% AFUE efficiency rating for natural gas combustion
• 125,000 BTU/h heating capacity suits larger conditioned spaces
• Single-stage heating operation for straightforward system control
• ECM blower motor reduces electrical consumption and supports variable airflow
• Downflow cabinet configuration for under-floor supply duct systems
• 5-ton nominal cooling airflow capacity for matched cooling equipment

Compatibility

Designed as an OEM-style downflow natural gas furnace for forced-air heating systems requiring 80% AFUE single-stage operation at 125,000 BTU/h with ECM blower motor capability.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes, the National Fuel Gas Code (NFPA 54), and the manufacturer installation instructions. Shut off the gas supply and disconnect electrical power before servicing or making connections. Downflow furnaces require a non-combustible floor or listed combustible-floor base beneath the unit. Verify proper flue venting, gas line sizing, and electrical supply before startup.

Technical Specifications

• Fuel Type: Natural Gas
• Heating Capacity: 125,000 BTU/h
• AFUE Efficiency: 80%
• Stage: Single Stage
• Configuration: Downflow
• Motor Type: ECM
• Nominal Cooling Tonnage: 5 tons

Standard Information

• Brand: WEATHERKING
• Manufacturer Part Number: W801T1255A24DZSNAS