Where does the AirEase brand come from?
AirEase says it was founded nearly a century ago in Columbus, Ohio, by the Lennox Furnace Company, and it dates its products to 1928. Today it's one of six brands under Allied Air Enterprises, a Lennox International company, and as of 2026 the AirEase website carries Allied Air's copyright. AirEase says its equipment is assembled in Orangeburg, South Carolina, with headquarters and research in Lexington County, South Carolina, and that every unit is run-tested before it leaves the plant.
On the furnace side, AirEase and Armstrong Air use identical model numbers: A98MVK, A972VK, A961EK and the rest. The number tells you the AFUE, the heat stages and the blower type, and our Armstrong Air service page decodes it digit by digit. For repairs, the overlap means the common parts are shared across two brands and easy to match by model number.
What are AirEase EHX heat exchangers and Quiet Combustion burners?
AirEase puts its own names on the parts that make heat. It says EHX, its patented heat exchanger design, is standard on every AirEase furnace, and that its Quiet Combustion burners are engineered to keep operating sound down. Registered AirEase furnaces are eligible for a limited lifetime heat exchanger warranty, which tells you where the brand puts its confidence.
AirEase furnaces fail in Minnesota the way any condensing furnace does over a long heating season. On the 93% to 98% models, a frozen condensate trap or a frosted PVC vent trips the pressure switch on a subzero night. A dirty flame sensor lets the burners light and drop out a few seconds later. A clogged filter trips the high limit and the burners cycle while the blower keeps running. On the modulating A98MVK, we check the gas valve across its firing range before blaming the control board. Our furnace repair page lists the checks we run on every no-heat call.
Quiet Shift and AirEase heat pumps in winter
Every heat pump has to defrost. On a damp day in the 20s, frost builds on the outdoor coil, and the unit reverses for a few minutes to melt it off. Many heat pumps announce that with a loud whoosh; AirEase's Quiet Shift is meant to make the change virtually silent. You'll still see steam rising off the cabinet and feel a short pause in heat, and that's normal. Our post on the heat pump defrost cycle explains what to expect.
The A7CP21V is AirEase's cold-weather heat pump: a Pro Series unit with a variable-capacity inverter-driven compressor, rated up to 21 SEER2 and 10 HSPF2, that AirEase says extracts heat down to 5°F. That covers a lot of a Minnesota winter, but not the -20°F stretches, so we pair it with a gas furnace as dual fuel or with electric backup heat. Existing R-410A AirEase heat pumps can still be repaired and recharged.
Does the AirEase Pro Series need the Comfort Sync A3 thermostat?
The Pro Series is AirEase's top line, and it's a communicating system: the outdoor unit, the furnace and the Comfort Sync A3 thermostat work as a set, and AirEase lists the A3 as needed for the A7CP21V's full smart functions. Swapping in an ordinary smart thermostat can cost you features, so ask before you change it. AirEase rates Pro Series outdoor units as low as 58 dBA and builds them with its Omniguard corrosion protection and a composite top and base.
Inside, the A98MVK modulating furnace is the piece that earns its price in a Minnesota winter. It can hold a low firing rate for long, quiet cycles instead of blasting on and off, which keeps room temperatures steadier. It also has more to go wrong than a single-stage furnace, so we read the fault first and order parts second.
Registration, replacement and booking
AirEase asks for registration on its website within 60 days of purchase. Registered heating equipment is eligible for a 10-year parts warranty and a limited lifetime heat exchanger warranty; unregistered equipment defaults to 5 years on parts and 20 on the heat exchanger. AirEase ties its extended options, including full unit replacement, to equipment installed by a registered ComforTeam or ProTeam dealer, so ask any installer about that before you sign.
When an AirEase is done, we size the replacement with a Manual J load calculation. Installed furnaces run $4,500–$9,500 and heat pumps $7,500–$14,500, and installs carry our 2-year labor warranty on top of the manufacturer's parts warranty.
Call 612-429-3465 from 7am to 9pm, seven days a week. No-heat calls get priority. A service call is a $79 trip charge, waived when you approve the repair, and the price is written and fixed before we start.
AirEase questions
Is AirEase made by Lennox?
AirEase is an Allied Air Enterprises brand, and Allied Air is a Lennox International company. AirEase says it was founded nearly a century ago in Columbus, Ohio, by the Lennox Furnace Company, and that its products are now assembled in Orangeburg, South Carolina. It isn't sold as a Lennox, and its furnaces share model numbers with Armstrong Air, another Allied Air brand.
What is AirEase Quiet Shift?
Quiet Shift is AirEase's name for the way its heat pumps switch into defrost. Frost builds on the outdoor coil in winter, and the unit has to run in reverse briefly to clear it. That switch often comes with a loud whoosh on other heat pumps; AirEase says Quiet Shift makes it virtually silent. Steam off the cabinet and a short pause in heat are still normal.
How cold can an AirEase heat pump go?
AirEase says its A7CP21V variable-capacity heat pump is designed to extract heat from outdoor air down to 5°F. Minnesota nights go well below that, so we pair AirEase heat pumps with a gas furnace as dual fuel, or with electric backup heat, and let the heat pump handle the milder days. The furnace or backup takes over when the heat pump can't keep up.
How long do I have to register an AirEase?
AirEase asks for registration on its website within 60 days of purchase. Registered heating equipment is eligible for a 10-year parts warranty and a limited lifetime heat exchanger warranty; other products get 10 years on parts. Miss the window and it defaults to 5 years on parts and 20 on the heat exchanger. Keep the registration confirmation with your install papers.
Are the federal tax credits on AirEase's Pro Series page gone?
Yes, for anything installed now. The federal 25C tax credit ended for equipment placed in service after December 31, 2025, even though AirEase's Pro Series page still mentions credits. Utility rebates are separate: CenterPoint Energy and Xcel Energy still run programs, with terms that change every year, and we help with the paperwork where the program allows.
Sources
- AirEase official site airease.com