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Ameristar by American Standard 100,000 BTU 80% AFUE Gas Furnace Downflow/Horizontal Single Stage up to 5 Ton 21" W R454B Refrigerant | A801X100CM5SCB

Ameristar

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SKU:
A801X100CM5SCB
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Condition:
New
Width:
21.00 (in)
Height:
34.00 (in)
Depth:
28.75 (in)

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Description

The Ameristar by American Standard 100,000 BTU 80% AFUE Gas Furnace Downflow/Horizontal Single Stage up to 5 Ton 21" W with R-454B Refrigerant (A801X100CM5SCB) is a high-capacity residential heating solution designed to deliver dependable warmth, efficient operation, and flexible installation options for larger homes. Featuring an 80% AFUE efficiency rating, this single-stage gas furnace provides reliable heating performance while supporting modern HVAC system configurations.

Designed for downflow and horizontal installations, the A801X100CM5SCB features a 21-inch wide cabinet and supports HVAC systems up to 5 tons. This furnace is engineered to integrate with compatible air conditioners, heat pumps, and evaporator coils to create a complete heating and cooling system while supporting advanced R-454B refrigerant HVAC configurations.

Key Features

  • 100,000 BTU Heating Capacity – Provides powerful heating output for larger residential applications
  • 80% AFUE Efficiency – Converts approximately 80% of fuel energy into usable heat
  • Single-Stage Gas Furnace – Delivers reliable and consistent heating performance
  • Downflow/Horizontal Installation – Supports flexible installation configurations
  • 21" Wide Cabinet Design – Designed for larger residential HVAC installations
  • R-454B Refrigerant Compatibility – Supports modern HVAC system combinations using next-generation refrigerant technology
  • Up to 5 Ton System Compatibility – Suitable for larger heating and cooling applications

Product Specifications

  • Brand: Ameristar by American Standard
  • Model: A801X100CM5SCB
  • Product Type: Gas Furnace
  • Heating Input Capacity: 100,000 BTU
  • Efficiency Rating: 80% AFUE
  • Furnace Type: Single Stage Gas Furnace
  • Installation Position: Downflow / Horizontal
  • Cabinet Width: 21 Inch
  • System Compatibility: Up to 5 Ton HVAC Systems
  • Refrigerant Compatibility: R-454B Systems
  • Application: Residential Heating Systems

Benefits

  • Provides powerful heating performance for larger homes
  • Helps maintain consistent indoor temperatures during colder weather
  • Supports flexible installation with downflow and horizontal configurations
  • Large cabinet design allows integration into higher-capacity HVAC systems
  • Designed for dependable long-term furnace operation
  • Compatible with modern R-454B HVAC system configurations
  • Provides an efficient heating solution for replacement and new installations
  • Works with matched cooling components for complete HVAC solutions

Compatibility & Installation

The Ameristar A801X100CM5SCB gas furnace is designed for residential heating applications and can be paired with compatible air conditioners, heat pumps, and evaporator coils to create a complete HVAC system.

Installation considerations:

  • Verify heating capacity matches the home's heating requirements
  • Confirm compatibility with the selected cooling or heat pump system
  • Verify gas supply, electrical requirements, and venting specifications
  • Ensure proper airflow and ductwork configuration
  • Follow manufacturer installation instructions and local building codes
  • Installation should be completed by a qualified HVAC professional

Frequently Asked Questions

What is the heating capacity of the Ameristar A801X100CM5SCB?
This furnace provides 100,000 BTU heating input capacity.

What does 80% AFUE mean?
An 80% AFUE rating means the furnace converts approximately 80% of fuel energy into usable heat.

What installation positions does this furnace support?
This model supports downflow and horizontal installation configurations.

What cabinet size does this furnace have?
This model features a 21-inch wide cabinet.

Can this furnace be combined with an air conditioner or heat pump?
Yes. It can be paired with compatible HVAC components to create a complete heating and cooling system.

Extra Information

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Brand:
Ameristar
Width:
21.00 (in)
Height:
34.00 (in)
Depth:
28.75 (in)
Weight:
144.00 LBS
Safety Information:
⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Prop 65 Warning:
Yes
Input (BTU):
100,000
AFUE:
80%
Heating Stages:
Single Stage
Cabinet Width (in):
21
Configuration:
Downflow/Horizontal

Warranty Information

10 Years Heat Exchanger & 10 Years Parts | Registration Required within 60 Days of Purchase

Please Note: To validate the manufacturer's warranty, equipment must be installed by a qualified licensed professional in accordance with local codes and the manufacturer's installation requirements.

2023 Energy Standards

Department of Energy (DOE) State Regulations – Effective 2023

Click the link below to view the energy standards applicable to your region.

DOE State Standards Document

Department of Energy (DOE) State Regulations – Effective 2023

Click the link below to view the energy standards applicable to your region.

DOE State Standards Document


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