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ACiQ 120,000 BTU 80% Gas-Fired Unit Heater Natural Gas Propane Convertible

By Reznor | Model: ACIQ-UH-125-NG | ID: 91814
No Sales Tax - in most states excluding California
Manufacturer Warranty Included
Satisfaction Guarantee - or return within 30 Days
Most Products In Stock - Call or Text (833) 658-3387 for availability
$1,688.00 + FREE SHIPPING

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Important Installation Note: This is a professional-grade, non-DIY system (including ACiQ, Goodman, Daikin, and select MrCool systems). It's recommended that installation and configuration is done by a licensed HVAC technician to ensure correct setup, safety compliance, and to maintain your manufacturer warranty coverage.

Product Details

ACiQ 120,000 BTU 80% Gas-Fired Unit Heater Natural Gas Propane Convertible ACIQ-UH-125-NG

The ACiQ 120,000 BTU Gas-Fired Unit Heater is a compact, high-efficiency heating solution designed to deliver reliable warmth for residential garages, workshops, utility buildings, and light commercial spaces. Its ceiling-mounted design provides powerful, even heat while preserving valuable floor space, making it an ideal choice for areas where traditional ducted HVAC systems are impractical or unavailable.

Built for dependable performance and extended service life, this gas-fired unit heater features a durable aluminized-steel heat exchanger that resists corrosion, thermal stress, and everyday wear. With an 80% thermal efficiency rating, the heater helps maximize fuel savings while delivering consistent and reliable heating throughout the colder months.

Equipped with a single-stage natural gas burner and Direct Spark Ignition (DSI), the ACiQ unit heater offers dependable ignition, smooth operation, and enhanced safety for residential and commercial heating applications.

Powerful Heating Performance with Flexible Installation

Designed to provide efficient space heating, the ACiQ 120,000 BTU unit heater delivers a 50-60F temperature rise with strong, consistent airflow for comfortable indoor temperatures. Operating at approximately 55 dBA, it provides quiet performance for a high-capacity gas unit heater, making it suitable for larger residential and light commercial spaces.

Its multi-point ceiling suspension system allows for flexible installation in a variety of building layouts, while standard 115V electrical service and multiple venting configurations simplify installation for both new construction and retrofit projects.

The unit ships factory-configured for natural gas and can easily be converted to liquid propane (LP) using a factory-authorized conversion kit (sold separately), offering greater installation flexibility for different fuel sources.

Key Features

  • 120,000 BTU Heating Capacity – Delivers powerful, high-output heating for large residential garages, workshops, warehouses, utility buildings, and light commercial spaces.
  • 80% Thermal Efficiency – Provides energy-efficient gas heating to help reduce fuel consumption while maintaining reliable indoor comfort.
  • Heavy-Duty Aluminized-Steel Heat Exchanger – Built with corrosion-resistant materials for exceptional durability, dependable performance, and extended service life.
  • Single-Stage Natural Gas Burner – Produces consistent heat output with efficient fuel operation for dependable daily performance.
  • Direct Spark Ignition (DSI) – Electronic ignition system provides reliable startups, enhanced operational safety, and dependable cold-weather performance.
  • Integrated LED Diagnostic Display – Built-in seven-segment LED display allows for quick troubleshooting, simplified maintenance, and faster service.
  • Quiet High-Capacity Operation – Operates at approximately 55 dBA, delivering powerful heating performance with controlled operating noise.
  • Ceiling-Mounted Design – Maximizes usable floor space while providing efficient overhead heat distribution throughout the workspace.
  • Flexible Venting Options – Compatible with multiple venting configurations for convenient installation in residential and commercial applications.
  • Standard 115V Electrical Connection – Installs using standard electrical service for straightforward setup.
  • Natural Gas Ready – Ships factory-configured for natural gas and can be converted to propane (LP) using an optional factory-authorized conversion kit (sold separately).
  • ETL Listed – Certified for safe operation in the United States and Canada for residential utility and light commercial applications.
  • Commercial-Grade Construction – Engineered for dependable, long-lasting performance in demanding residential, agricultural, and commercial environments.

View More Gas Fired Heater Units

Specifications

ACiQ 120,000 BTU 80% Gas-Fired Unit Heater Natural Gas Propane Convertible ACIQ-UH-125-NG

Brand ACiQ SKU ACIQ-UH-125-NG
Weight (in lbs) 122 Manufacturer ACiQ
Furnace Efficiency / AFUE 80-85% Heating BTU 120,000 BTU
Heat Exchanger Material Aluminized Steel Maximum CFM 1537
Decibel Level (dBA) 55 Motor RPM 1050
Venting Type Power Vent Flue Location Rear
Flue Outlet 4" Watt 354
Electrical 115V / 1 Phase Phase Single Phase
Amperage Requirement 5.6 Amps Operating Mode Heating
Connection 1/2" Connection to Gas Valve Fuel Type Propane, Natural Gas
Height 25-3/4" Width 27-1/8"
Depth 30-21/32" Warranty 1 Year Standard Warranty, 2 & 5 Year Extended Heat Exchanger Warranties Available through ACiQ
Warranty

ACiQ 120,000 BTU 80% Gas-Fired Unit Heater Natural Gas Propane Convertible ACIQ-UH-125-NG

Warranty Type Heat Exchanger Standard
Registered Warranty 2 & 5 Year Extended 1 Year
Documents

ACiQ 120,000 BTU 80% Gas-Fired Unit Heater Natural Gas Propane Convertible ACIQ-UH-125-NG

ACiQ Installation, Operation, and Maintenance Manual

ACiQ LP Conversion Kit Installation

Shipping

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at [email protected].

Returns: For returns unrelated to damage, contact us at [email protected] for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at [email protected] or call (833) 658-3387.

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Product Details

ACiQ 120,000 BTU 80% Gas-Fired Unit Heater Natural Gas Propane Convertible ACIQ-UH-125-NG

The ACiQ 120,000 BTU Gas-Fired Unit Heater is a compact, high-efficiency heating solution designed to deliver reliable warmth for residential garages, workshops, utility buildings, and light commercial spaces. Its ceiling-mounted design provides powerful, even heat while preserving valuable floor space, making it an ideal choice for areas where traditional ducted HVAC systems are impractical or unavailable.

Built for dependable performance and extended service life, this gas-fired unit heater features a durable aluminized-steel heat exchanger that resists corrosion, thermal stress, and everyday wear. With an 80% thermal efficiency rating, the heater helps maximize fuel savings while delivering consistent and reliable heating throughout the colder months.

Equipped with a single-stage natural gas burner and Direct Spark Ignition (DSI), the ACiQ unit heater offers dependable ignition, smooth operation, and enhanced safety for residential and commercial heating applications.

Powerful Heating Performance with Flexible Installation

Designed to provide efficient space heating, the ACiQ 120,000 BTU unit heater delivers a 50-60F temperature rise with strong, consistent airflow for comfortable indoor temperatures. Operating at approximately 55 dBA, it provides quiet performance for a high-capacity gas unit heater, making it suitable for larger residential and light commercial spaces.

Its multi-point ceiling suspension system allows for flexible installation in a variety of building layouts, while standard 115V electrical service and multiple venting configurations simplify installation for both new construction and retrofit projects.

The unit ships factory-configured for natural gas and can easily be converted to liquid propane (LP) using a factory-authorized conversion kit (sold separately), offering greater installation flexibility for different fuel sources.

Key Features

  • 120,000 BTU Heating Capacity – Delivers powerful, high-output heating for large residential garages, workshops, warehouses, utility buildings, and light commercial spaces.
  • 80% Thermal Efficiency – Provides energy-efficient gas heating to help reduce fuel consumption while maintaining reliable indoor comfort.
  • Heavy-Duty Aluminized-Steel Heat Exchanger – Built with corrosion-resistant materials for exceptional durability, dependable performance, and extended service life.
  • Single-Stage Natural Gas Burner – Produces consistent heat output with efficient fuel operation for dependable daily performance.
  • Direct Spark Ignition (DSI) – Electronic ignition system provides reliable startups, enhanced operational safety, and dependable cold-weather performance.
  • Integrated LED Diagnostic Display – Built-in seven-segment LED display allows for quick troubleshooting, simplified maintenance, and faster service.
  • Quiet High-Capacity Operation – Operates at approximately 55 dBA, delivering powerful heating performance with controlled operating noise.
  • Ceiling-Mounted Design – Maximizes usable floor space while providing efficient overhead heat distribution throughout the workspace.
  • Flexible Venting Options – Compatible with multiple venting configurations for convenient installation in residential and commercial applications.
  • Standard 115V Electrical Connection – Installs using standard electrical service for straightforward setup.
  • Natural Gas Ready – Ships factory-configured for natural gas and can be converted to propane (LP) using an optional factory-authorized conversion kit (sold separately).
  • ETL Listed – Certified for safe operation in the United States and Canada for residential utility and light commercial applications.
  • Commercial-Grade Construction – Engineered for dependable, long-lasting performance in demanding residential, agricultural, and commercial environments.

View More Gas Fired Heater Units

Specifications

ACiQ 120,000 BTU 80% Gas-Fired Unit Heater Natural Gas Propane Convertible ACIQ-UH-125-NG

Brand ACiQ SKU ACIQ-UH-125-NG
Weight (in lbs) 122 Manufacturer ACiQ
Furnace Efficiency / AFUE 80-85% Heating BTU 120,000 BTU
Heat Exchanger Material Aluminized Steel Maximum CFM 1537
Decibel Level (dBA) 55 Motor RPM 1050
Venting Type Power Vent Flue Location Rear
Flue Outlet 4" Watt 354
Electrical 115V / 1 Phase Phase Single Phase
Amperage Requirement 5.6 Amps Operating Mode Heating
Connection 1/2" Connection to Gas Valve Fuel Type Propane, Natural Gas
Height 25-3/4" Width 27-1/8"
Depth 30-21/32" Warranty 1 Year Standard Warranty, 2 & 5 Year Extended Heat Exchanger Warranties Available through ACiQ
Warranty

ACiQ 120,000 BTU 80% Gas-Fired Unit Heater Natural Gas Propane Convertible ACIQ-UH-125-NG

Warranty Type Heat Exchanger Standard
Registered Warranty 2 & 5 Year Extended 1 Year
Documents

ACiQ 120,000 BTU 80% Gas-Fired Unit Heater Natural Gas Propane Convertible ACIQ-UH-125-NG

ACiQ Installation, Operation, and Maintenance Manual

ACiQ LP Conversion Kit Installation

Shipping

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at [email protected].

Returns: For returns unrelated to damage, contact us at [email protected] for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at [email protected] or call (833) 658-3387.

Reviews