Friedrich FR98MV1005A21UPSGAP Gas Furnace 98% 100K Btu Upflow

Product Description

The FRIEDRICH FR98MV1005A21UPSGAP is a high-efficiency natural gas furnace rated at 98% AFUE and 100,000 BTU/h output. It operates in an upflow configuration and uses an ECM variable-speed motor to modulate airflow across the heat exchanger. The result is consistent supply-air temperature, quieter operation, and reduced electrical draw compared to single-speed PSC motor furnaces. At 21 inches wide, the cabinet fits standard residential equipment closets and utility rooms. Licensed HVAC technicians handle installation, start-up, and gas line connection for this equipment class.

This furnace is sized for up to 5-ton nominal cooling coil applications, making it well matched to larger residential or light-commercial structures that require high-capacity heating. The upflow air discharge sends conditioned air directly into an overhead duct system, which is the most common trunk-and-branch layout in slab-on-grade and crawlspace construction. The ECM variable-speed drive allows the system to ramp output to match load rather than cycling at full fire, supporting both comfort zoning and dehumidification performance when paired with a communicating thermostat or zone controller.

Key Features

• 98% AFUE efficiency reduces fuel consumption compared to standard 80% AFUE equipment
• 100,000 BTU/h heating capacity suits larger residential and light-commercial loads
• ECM variable-speed motor modulates airflow for consistent temperature and lower operating noise
• Upflow configuration discharges into overhead duct systems
• 21-inch cabinet width fits standard furnace closets and mechanical rooms
• Natural gas fuel type; compatible with typical residential gas supply infrastructure

Compatibility

Designed as an OEM-style upflow gas furnace replacement or new-install unit for residential natural gas heating systems requiring 100,000 BTU/h capacity at 98% AFUE with a 5-ton nominal cooling coil match.

Installation Notes

Installation must be performed by a licensed HVAC contractor in accordance with the International Fuel Gas Code (IFGC), local mechanical codes, and the manufacturer installation instructions. Shut off the gas supply and disconnect electrical power before any service or replacement work. This furnace requires a Category IV sealed combustion venting system; do not connect to B-vent or single-wall metal flue systems. Verify gas supply pressure, flue pipe sizing, and condensate drainage routing before commissioning.

Technical Specifications

• Fuel Type: Natural Gas
• Heating Capacity: 100,000 BTU/h
• AFUE Efficiency: 98%
• Nominal Cooling Match: 5 Tons
• Configuration: Upflow
• Motor Type: ECM Variable Speed
• Cabinet Width: 21 inches

Standard Information

• Brand: FRIEDRICH
• Manufacturer Part Number: FR98MV1005A21UPSGAP