ACiQ 66000 BTU 80% AFUE Gas Furnace | Variable Speed Two Stage Multi-Positional | R454B Compliant (G80CTL0701716B)
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Key features
- 66,000 BTU output, two-stage gas valve for modulated heating capacity
- Variable-speed ECM blower motor for quiet, efficient air circulation
- 80% AFUE efficiency rating, meets standard code-minimum requirements
- Multi-positional cabinet: upflow, downflow, or horizontal installation
- R-454B refrigerant compliant for forward-compatible coil pairing
- 12-year parts warranty included, sold direct with no dealer markup
About this system
The ACiQ G80CTL0701716B is a 66,000 BTU, 80% AFUE two-stage gas furnace built around a variable-speed blower motor. It is designed for multi-positional installation, meaning it can be set up in upflow, downflow, or horizontal configurations to fit a range of duct layouts and mechanical room arrangements. At 80% AFUE, one-fifth of every unit of fuel energy exits as exhaust, which is the baseline efficiency tier most code-minimum installations still allow. Buyers who want to reduce gas bills further should price-compare against 96% AFUE two-stage options, since the payback math can favor the upgrade in cold climates with long heating seasons.
The variable-speed blower is the stand-out component here. Unlike a single-speed motor that blasts on at full power and then shuts off, the variable-speed ECM motor ramps gradually, holds lower speeds for longer run cycles, and manages humidity and temperature swings more precisely. Combined with two-stage gas valve operation, this furnace can run at a reduced first-stage fire during moderate weather and only step up to full 66,000 BTU output when the load demands it. The result is quieter operation, more even heat distribution, and meaningfully lower blower electricity consumption compared with PSC-motor equivalents. The unit ships R-454B compliant, which matters for pairing with a matched cooling coil on any future refrigerant-side additions to the system.
The ACiQ G80CTL0701716B delivers genuinely useful features, specifically variable-speed blower operation and two-stage firing, at a price that undercuts established name brands by a meaningful margin. The 80% AFUE tier limits long-term fuel savings compared with condensing alternatives, and the brand's short market history means independent reliability data is still thin. For budget-conscious buyers in moderate climates who have a capable independent contractor lined up, it represents solid value with acceptable but not zero risk.
Overall score is the average of the five ratings above.
What we like
- Variable-speed ECM blower reduces electricity use and runs noticeably quieter than PSC-motor furnaces
- Two-stage firing matches heat output to actual load, improving comfort and reducing short cycling
- 12-year parts warranty shipped direct means no dealer markup inflating the coverage cost
- Multi-positional cabinet increases installation flexibility across different mechanical room configurations
- Early owner feedback consistently notes quiet operation and responsive customer support from ACiQ
Trade-offs
- 80% AFUE leaves real fuel savings on the table versus 95-96% AFUE condensing models, especially in cold climates with high heating degree days
- Brand is relatively new, so Consumer Reports has not yet assigned a reliability score and long-term failure data remains limited
- Undisclosed manufacturer makes cross-referencing parts, service bulletins, and technician familiarity harder than with a named brand
- No dealer network means service depends entirely on finding an independent contractor willing to work on an unfamiliar brand
What homeowners and pros say about ACiQ
Early owners of ACiQ equipment, including this furnace line, report that quiet operation is the most consistent positive observation, which aligns with what a properly tuned variable-speed ECM blower delivers. ACiQ’s customer support team draws favorable mentions for responsiveness when questions arise during installation or setup. Consumer Reports has not yet ranked ACiQ due to insufficient long-term data, so there is no independent reliability score to cite, and that absence is a real data gap rather than a neutral signal. The brand is new enough that the pool of five-year or ten-year owner reports simply does not exist yet.
From an HVAC contractor perspective, the conversation around ACiQ typically centers on two practical concerns specific to this product type. First, because the actual manufacturing source is not publicly disclosed, technicians accustomed to cross-referencing parts against ICP or Carrier family diagrams cannot confirm that shortcut applies, which can slow down diagnosis on an unfamiliar unit. Second, since the product is sold direct, there is no local distributor stocking dedicated parts, which can extend lead times on a replacement component during a winter outage. Neither issue makes the furnace a poor choice, but both are real operational trade-offs a buyer should weigh against the upfront savings before committing.
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
| Brand | Comparable model | SEER2 | Stage | Price position |
|---|---|---|---|---|
| ACiQ | G80CTL0701716B | N/A (gas furnace) | Two-stage | Value pick |
| Carrier | Performance 80 (58TP) | N/A (gas furnace) | Two-stage | Moderately higher, dealer install typically adds further cost |
| Trane | S80 (TUD2) | N/A (gas furnace) | Two-stage | Higher, reflects Trane dealer network and brand premium |
| Lennox | Merit ML180 | N/A (gas furnace) | Single-stage | Comparable to slightly higher depending on dealer, but single-stage blower limits comfort features |
Competitor rows are comparable single-stage units at similar efficiency; price is relative position, not a quote.
Questions about this system
Is 80% AFUE going to cost me significantly more to run than a high-efficiency furnace?
In a mild climate with a shorter heating season the difference is modest, but in cold regions it can add up meaningfully over the furnace's lifetime. At 80% AFUE, 20 cents of every dollar in gas is exhausted rather than delivered as heat, compared with roughly 4 cents on a 96% AFUE unit. Running the numbers against local gas rates and your annual heating load before buying is worthwhile.
Can any licensed HVAC technician service this furnace, or do I need an ACiQ-authorized dealer?
ACiQ sells direct rather than through a dealer network, so there are no factory-authorized dealers in the traditional sense. Any licensed HVAC contractor can service it, but the undisclosed manufacturer relationship means some technicians may be less familiar with specific parts sourcing. Confirming parts availability with your local contractor before purchasing is a practical step.
What does multi-positional mean and does my installation qualify?
Multi-positional means the cabinet is engineered to operate correctly when installed in an upflow configuration (air enters bottom, exits top), downflow (air enters top, exits bottom), or horizontal orientation for attic or crawlspace installs. Most residential applications are covered, but you should confirm the specific orientation your duct layout requires matches the installation instructions before ordering.
Why does the furnace mention R-454B if it is a gas furnace with no refrigerant?
This furnace is designed to be paired with a matched air handler or evaporator coil in a split system. The R-454B compliance designation indicates the unit is compatible with coils and refrigerant lines built for the newer R-454B refrigerant, which is the lower-global-warming-potential replacement being phased into residential HVAC systems. It does not affect the gas heating side of the unit.
How does the 12-year warranty work if ACiQ does not have local dealers?
ACiQ registers the warranty directly and handles claims through their own support team rather than through a dealer. The 12-year coverage applies to parts, but labor costs for warranty repairs are typically the homeowner's responsibility and depend on the rate your independent contractor charges. Confirming the exact terms of what is and is not covered in writing at purchase is recommended.
Specifications
| Furnace output | 66000 BTU |
| Furnace efficiency | 80% AFUE |
| Refrigerant | R-454B |