ACiQ 120000 BTU Gas Furnace – 97% Variable Speed Modulating Multi-Positional Communicating (G97CMN1202422A)

About this system

The ACiQ G97CMN1202422A is a 120,000 BTU, 97% AFUE gas furnace with variable-speed blower operation and full modulating gas valve control. That combination means the burner adjusts its output in small increments rather than slamming on at full capacity every cycle, which translates to steadier indoor temperatures, reduced short-cycling, and lower average fuel consumption over a heating season. At 97% AFUE, this unit sits at the top tier of residential gas furnace efficiency, meaning 97 cents of every dollar spent on natural gas becomes usable heat rather than exhaust. That efficiency level qualifies it for federal tax credits under current Inflation Reduction Act guidelines for gas furnaces meeting the efficiency threshold.

The multi-positional configuration means the cabinet can be installed upflow, downflow, or horizontal, giving installers flexibility in tight mechanical rooms, crawlspaces, and attic applications. The communicating control board is designed to share real-time diagnostics with compatible communicating thermostats and matched ACiQ air handlers or coils, allowing more precise system coordination than a standard 24-volt control setup. At 120,000 BTU, this is a large furnace intended for homes in the roughly 3,000 to 4,500 square foot range in colder climates, or for heavy-load applications like homes with significant duct losses, high ceilings, or very cold heating degree day counts. Buyers who do not need that much capacity should size carefully before purchasing.

What homeowners and pros say about ACiQ

Homeowners who have installed ACiQ gas furnaces in online forums and early review threads most often comment on unexpectedly quiet operation once the variable-speed blower settles into its lower steady-state speeds, and several note that their heating bills came down relative to their previous single-stage or two-stage equipment. Support interactions described so far have been responsive by direct-brand standards. That said, the brand is new enough that Consumer Reports has not yet assigned it a reliability score due to insufficient long-term data, which is a real gap for buyers used to leaning on that kind of independent benchmark. No widespread documented failure patterns specific to ACiQ gas furnaces have surfaced yet, though the short market history means that absence of failure data is not the same thing as a confirmed reliability record.

HVAC contractors who have installed ACiQ equipment tend to have mixed reactions that break along predictable lines. Technicians comfortable working with communicating systems and sourcing parts independently generally find the equipment straightforward and appreciate the competitive pricing for their customers. Contractors more accustomed to working within a manufacturer dealer network sometimes flag the undisclosed manufacturer as a friction point when troubleshooting unfamiliar error codes or trying to locate OEM documentation. The practical advice from both camps is the same: make sure your contractor has reviewed the ACiQ installation and service manual for this specific model before the install day, and confirm they are comfortable handling warranty parts logistics directly with ACiQ rather than through a distributor.

Sources: Consumer Reports heat pump ratings, HVACDirect on the ACiQ brand, AHRI Directory of Certified Product Performance, U.S. DOE appliance and equipment efficiency standards.

How it compares

Competitor rows are comparable single-stage units at similar efficiency; price is relative position, not a quote.

Questions about this system