100,000 BTU 96% AFUE Two Stage ACiQ Gas Furnace | 21" Width | Upflow/Horizontal

High-Efficiency 100,000 BTU Gas Furnace with Two-Stage Heating for More Even Temperatures

Keep your home warm in the coldest parts of the year with an ACiQ two stage gas furnace. This 100,000 BTU 96% furnace can be installed in upflow and horizontal orientations, making it a great choice for basement installations as well as any setups where the furnace needs to be on its side. It is also equipped with an ECM blower motor that evenly distributes heat all throughout an appropriately-sized home. The two burner stages controls how much heat is needed based on the demand of your house, toggling between partial and full heating capacity as necessary. A propane conversion kit is included for easy transition to utilizing liquid propane as its fuel source.

Key Benefits

• 100,000 BTU Heating Input - Provides approximately 96,000 BTU of heating output; a general estimate for 2,200-2,600 sq. ft. homes.
• 96% AFUE Efficiency - Converts approximately 96% of the fuel's energy into usable heat, helping reduce energy waste.
• Two-Stage Heating - Operates at partial or full capacity to better match the home's heating needs.
• ECM Blower Motor - Helps circulate heated air efficiently through compatible ductwork.
• Propane Conversion Kit Included - Allows conversion from natural gas to propane for compatible installations.
• Upflow and Horizontal Installation - Supports approved layouts for compatible homes.
• 21" Cabinet Width - Helps accommodate compatible equipment layouts and installation spaces.
• Self-Diagnostic Controls - Help technicians identify operating issues and simplify servicing.
• Durable Heat Exchanger Construction - Supports reliable heating performance over time.

High-Efficiency Heating That Helps Reduce Energy Waste

With a 96% AFUE rating, the furnace converts approximately 96% of its fuel energy into usable warmth. Its 100,000 BTU heating input provides approximately 96,000 BTU of heating output, helping homeowners make better use of their heating fuel.

Two-Stage Heating for More Consistent Comfort

Not every chilly day calls for full heating power. Two-stage operation uses partial capacity when less heat is needed, helping maintain more even indoor temperatures. When temperatures drop, the furnace can move to full capacity. Together with the ECM blower, this helps deliver comfortable heating throughout the season.

Installation and Fuel Options

Approved upflow and horizontal configurations accommodate compatible residential layouts. The 21" cabinet helps fit the planned ductwork and equipment space. Factory-configured for natural gas, the furnace also includes a propane conversion kit. A qualified HVAC professional must complete any conversion.

Built for Dependable Performance

The heat exchanger, ECM blower motor, and self-diagnostic controls help support reliable operation and servicing. Paired with approved ACiQ outdoor cooling equipment and a compatible evaporator coil, the furnace can support year-round comfort through central ductwork. Confirm the complete system match before installation.

Warranty

• 20-Year Heat Exchanger Limited Warranty
• 10-Year Parts Limited Warranty

Warranty coverage is subject to applicable terms, installation requirements, and registration conditions.

What's Included

• ACiQ Gas Furnace - 100,000 BTU, 96% AFUE heating equipment.
• Propane Conversion Kit - Included for compatible natural gas-to-propane conversions.

Recommended Accessories & Equipment Options

• Compatible ACiQ Outdoor Condenser - Supports central cooling with approved indoor equipment.
• Compatible Evaporator Coil - Required when adding central air conditioning.
• Thermostat - Controls furnace heating and compatible cooling equipment.
• Air Filter or Filter Rack - Helps protect equipment and maintain proper airflow.

Requirements, Considerations & Required Notices

• Professional Installation Required - Installation and any propane conversion must be completed by a qualified HVAC professional.
• Proper Equipment Sizing - Confirm the home's heating needs; the square-footage estimate is not a substitute for a heat-load calculation.
• Upflow or Horizontal Installation Only - Downflow installation is not supported.
• Plastic Venting Required - Use approved plastic venting materials, such as PVC where permitted by the installation manual. Conventional metal flue venting is not permitted.
• Natural Gas or Propane Operation - Factory-configured for natural gas; propane requires the included conversion kit.
• Ductwork & Equipment Compatibility - Confirm airflow requirements and approved matched components.
• Electrical & Installation Requirements - Verify electrical connections, combustion air, service clearances, and condensate provisions.

Low NOx Compliant

This ACiQ gas furnace meets California Low NOx requirements.

This furnace cannot be installed in Colorado or the following counties in California: Fresno, San Joaquin, Kern, Kings, Los Angeles, Madera, Merced, Orange, Riverside, San Bernardino, Stanislaus, Yolo, and Tulare. In these areas, an Ultra-Low NOx furnace is required. Please contact us if you have any questions.