ACiQ Inverter Heat Pump

Standard heat pumps run flat-out or not at all, which is why most homeowners experience temperature swings, humidity problems, and brutal winter electric bills the moment outdoor temperatures drop below freezing. The ACiQ inverter heat pump answers that problem differently. By converting AC power to DC and modulating compressor speed in real time, an ACiQ inverter system delivers only the BTUs your home actually needs in any given moment, then quietly steps back when it does not. The result is consistent comfort with fewer cycling losses and meaningfully lower energy use.

Our ACiQ inverter heat pump lineup covers the full residential range, from 1.5 ton systems for smaller homes to the 5 ton inverter heat pump configurations engineered for larger residential builds and light commercial spaces. ACiQ inverter heat pumps come in three series: Standard Series (operating from 5°F to 122°F), Extreme Series (extending heating capacity down to -22°F), and Extreme+ Series (also rated to -22°F with higher SEER2 efficiency). All three series use R454B refrigerant and gold fin condenser coils for corrosion resistance. Adaptive sizing automatically calibrates the system to function as a smaller unit during cooling season, which solves the classic over-sizing problem traditional heat pumps create when they are sized for winter heating loads.

Why Choose an ACiQ Inverter Heat Pump from HVAC Store?

• Variable-speed inverter compressors that modulate output in real time for steady temperatures and lower energy costs.

• Extreme Heat performance from -22°F to 122°F on Extreme and Extreme+ Series models, with up to 80 percent capacity retained at -22°F outdoor temperatures.

• Smart learning condensers with sensors that monitor refrigerant pressure, duct performance, and indoor and outdoor temperatures to optimize over time.

• Our dedicated team of HVAC specialists is here to help you match the right tonnage and series to your home's heating and cooling load.

You Might Also Like

• ACiQ Heat Pump Systems: The full ACiQ heat pump lineup including standard, high-efficiency, and Extreme Series systems for any climate or sizing requirement.

• Heat Pump Inverters: Compre inverter-driven heat pump options across multiple brands when you want to evaluate alternatives before settling on ACiQ.

• 5 Ton Heat Pump Inverters: Browse 5 ton inverter heat pumps specifically, suited to larger homes typically in the 2,500 to 3,000 square foot range or for replacing oversized standard equipment.

• ACiQ Air Handler Systems: Match your inverter condenser with a compatible ACiQ multi-position air handler for a complete communicating system.

Best ACiQ Inverter Heat Pumps for...

5 Ton Inverter Heat Pump for Larger Homes and Light Commercial Spaces

The best 5 ton inverter heat pump for larger homes and light commercial spaces is an Extreme Series condenser, which delivers 12,000 to 54,000 BTU of variable cooling and up to 56,000 BTU of heating from a single condenser.

Cold-Climate Heating Performance

The best ACiQ inverter heat pump for cold-climate heating performance is any model in the Extreme+ Series. These systems retain meaningful capacity to negative 22°F, which keeps backup electric heat usage to a minimum even in deep northern winters.

Mid-Sized Home Replacements

The best ACiQ inverter heat pump for a mid-sized home replacement is a 3 ton or 2.5 ton Extreme Series condenser (R454B), which matches well to homes between 1,500 and 2,000 square feet without the over-sizing problems of fixed-capacity systems. Standard Series equivalents cover the same tonnage at a lower price point in moderate climates not requiring sub-zero heating performance.

Compact Homes and Additions

The best ACiQ inverter heat pump for compact homes and additions is a 1.5 ton Standard Series condenser (18.8 SEER2). Delivering 12,000 to 18,000 BTU of adaptive output, it pairs cleanly with smaller ductwork and avoids the short-cycling that plagues over-sized installs. For the same tonnage in cold-climate regions, the 1.5 ton Extreme Series condenser (19 SEER2) extends heating performance down to -22°F.