13 Best Air Source Heat Pump | Ditch the Furnace for Good

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This Goodman bundle pairs the GLZS4BA2410 heat pump with the AMST24BU1300 multi-position air handler, delivering a matched 15.2 SEER2 system that upgrades an older R410A setup to the newer R32 refrigerant. The single-stage scroll compressor is not inverter-driven, but the simplicity of a fixed-speed scroll means fewer electronics to fail and easier troubleshooting when something does go wrong — a real advantage in remote areas where inverter board replacements take weeks.

The air handler uses an aluminum evaporator coil with grooved tubing, which resists formicary corrosion better than traditional copper-aluminum joints, and the entire system ships pre-charged for a 15-foot lineset. Real buyers report that the multi-position cabinet fits tight attic crawlspaces, and the factory-installed filter drier removes one more hassle during installation. The 10-year parts warranty requires online registration within 60 days, so do not skip that step.

Where this system falls short is the lack of a factory heat kit — in climates that regularly dip below freezing, you will need to add an electric heat strip to handle defrost cycles and backup heating. The single-stage compressor also means the indoor temperature will swing more noticeably than with an inverter unit, which some homeowners find less comfortable during shoulder seasons.

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The Goodman GPH1442H41 is a packaged heat pump — both the compressor and air handler live in a single cabinet designed for ground-level slab installation, which makes it the go-to choice for manufactured homes, flat-roof commercial spaces, and any building without a basement or crawlspace. At 14 SEER, it hits the federal minimum for new installations, but the single-package design eliminates the need for separate indoor evaporator coil matching and line-set charging, simplifying the swap for a homeowner replacing a failed package unit.

Owners report straightforward curb modifications and reliable startup performance, with multiple customers noting that a 3.5-ton capacity handles 1,800 to 2,200 square feet of conditioned space in moderate climates. The scroll compressor runs on R410A, which is still widely available but will eventually phase down under EPA regulations. The unit ships with a factory-installed filter drier and service valves that accept standard gauge ports for evacuation.

The biggest limitation is efficiency — 14 SEER means this unit will consume more electricity per BTU than any mini-split or modern inverter system on this list. It also weighs north of 350 pounds, so you will need either a lift-gate truck or a helper with strong backs just to maneuver it off the delivery pallet. Buyers in warmer regions who want a simple drop-in replacement will find this the quickest path, but anyone chasing utility bill savings should look at higher-SEER2 alternatives.

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Cooper & Hunter’s single-zone 36,000 BTU wall-mount system uses a rotary-scroll inverter compressor to deliver 19.5 SEER2 cooling efficiency while operating down to -13°F in heating mode, which qualifies it as a cold-climate heat pump by any standard. The included 16-foot line set is pre-insulated and pre-flared, and the smart kit enables full Wi-Fi control via the C&H app without requiring an external hub — a clean setup for tech-forward homeowners.

Real buyers running this unit in 1,500 to 2,000 square foot workshops and garages report it can hold 80°F indoor temps when outdoor temps hit 100°F, and it easily keeps a metal building comfortable during freezing nights. The whisper-quiet outdoor condenser draws minimal attention from neighbors, and the indoor air handler includes auto-swing louvers and a turbo mode for quick temperature pull-down. The copper tubing and aluminum fin coil are standard, but Cooper & Hunter backs the unit with a 7-year compressor warranty and U.S.-based phone support.

Several buyers noted that the installation manual lacks detail on line-set sizing and vacuum procedure, and the unit cannot use a GFCI breaker — it trips under normal operating conditions. The system also requires a dedicated 30-amp disconnect. If you are a DIY homeowner without HVAC tools like a micron gauge and manifold set, budget for professional installation, as the manual alone will not walk you through a proper evacuation.

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The Senville LETO 36,000 BTU mini split uses an inverter-driven rotary compressor with R454B refrigerant, a low-GWP replacement for R410A that operates at similar pressures but with a reduced environmental footprint. With an 18 SEER rating (roughly 17 SEER2 equivalent), the unit balances cost and efficiency well for a 3-ton single-head system. The DC inverter motor ramps up and down smoothly, which owners report holds a set temperature within one degree while cycling the outdoor fan at barely audible levels.

Customer accounts of replacing failed 26-year-old central AC systems with a single Senville 36K head unit in houses up to 1,800 square feet show that one strategically placed indoor unit can handle an entire open floor plan, though multi-story homes still benefit from a second zone. The Alexa integration works reliably through the Senville app, allowing scheduling and geofencing. The included 16-foot line set is pre-charged for a 25-foot total run, so longer runs require adjusting the refrigerant charge.

The five-year compressor warranty explicitly voids coverage if the system is charged by anyone other than a licensed HVAC professional, so self-installers accept significant risk. The outdoor condenser is heavy at roughly 190 pounds, and the remote control lacks backlighting — a minor annoyance when adjusting settings in a dark bedroom. Despite these caveats, the LETO series consistently earns high marks from both homeowners and small-business owners for its raw heating punch and customer support responsiveness.

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MRCOOL’s Easy Pro series strips away the complexity of traditional mini-split installation by using pre-charged quick-connect line sets that do not require a vacuum pump or manifold gauges — the system seals itself when you tighten the fittings. This 24,000 BTU model covers spaces up to 1,050 square feet and uses an inverter compressor with R32 refrigerant, delivering steady temperatures without the aggressive on-off cycling of a fixed-speed unit. For a homeowner with basic electrical skills, the Easy Pro genuinely cuts installation time to under three hours.

Buyers who have installed multiple mini-splits confirm that the MRCOOL is simpler than any competitor for a first-time installer, and the company’s U.S.-based tech support is responsive when the included instruction booklet leaves questions unanswered. The unit provides both heating and cooling with a 230V power requirement, and the sleek white indoor head fits well in modern interiors without protruding awkwardly. The noise floor sits around 43 dBa on high fan speed, which is comparable to a window fan on low.

Reliability reports are mixed — several owners experienced condenser failure or refrigerant leaks within the first year, and MRCOOL’s warranty process can be slow when a replacement is needed. The pre-charged line sets are proprietary and expensive to replace if damaged during routing, so extra care is required when running the lines through wall cavities. The USB Wi-Fi dongle included with some units fails intermittently, leaving you stuck with the remote until a replacement arrives.

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The DELLA 28K BTU multi-zone system pairs a single 28,000 BTU outdoor condenser with two indoor wall units: a 9,000 BTU head for a bedroom or small office and an 18,000 BTU head for a living area or master suite, covering a combined 1,400 square feet. Each zone operates independently with its own remote control and temperature sensor, and the outdoor unit uses a DC inverter compressor with R454B refrigerant to achieve a 20 SEER2 rating. This is the most cost-effective way to bring ductless comfort to a two-room layout without buying separate condensers for each zone.

Owners report that the 18,000 BTU head keeps a 1,000-square-foot open area comfortable even in triple-digit weather, while the smaller head maintains a steady 72°F in a bedroom without overcooling. The 4D air swing and I-Feel mode on the remote shift the temperature sensing location from the indoor unit to the remote, which prevents the wall-mounted thermostat from being fooled by ceiling heat stratification. Two 16-foot line sets and drain hoses are included, and the system ships pre-charged for up to 25 feet of total line length.

Installation complexity jumps significantly for a dual-head system because you must route, insulate, and connect two separate line sets without kinking either one — a task that takes 10 to 12 hours for a first-timer. The indoor unit mounting brackets sometimes arrive misaligned from the factory, requiring shimming. Several units have arrived with cosmetic damage from UPS handling, and DELLA’s return process for damaged goods is slower than ideal. This system also does not support the self-cleaning function despite the button being present on the remote.

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The DELLA Vario Series 24,000 BTU single-zone mini split packs a 21 SEER2 inverter compressor that owners consistently describe as the quietest moving part in their house — outdoor sound levels hover around 36 dBa, quieter than a library whisper. The pre-charged R32 system heats down to -4°F, uses a 4D air flow louver system that distributes air evenly across a 1,500-square-foot space, and ships with a full 16.4-foot installation kit that includes copper lines, drain hose, and communication cable. The I-Feel function shifts temperature sensing to the remote, preventing the wall unit from over-cooling based on ceiling sensor readings.

Buyers in Texas heat report that the Vario cools a 400+ square foot shop with multiple rooms so effectively that their monthly electric bill dropped from over down to around during peak summer months. The scroll compressor provides smooth modulation, and several owners who installed the unit themselves using YouTube guides confirm that the wiring schematic is clear and the flare connections are well built. The unit ships pre-charged for up to 25 feet of line length, so no additional refrigerant is needed for the majority of standard installations.

Some owners note that the included remote control batteries are poor quality and fail quickly — a minor irritation compared to replacing the remote itself. The plastic wall sleeve included for the line-set pass-through feels thin and may degrade after a few seasons of UV exposure, so a metal or PVC alternative is recommended for exterior walls. A handful of units arrived with dented condenser grilles, but DELLA’s customer service response was swift with replacement panels in those cases.

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Goodman’s GLXS4BA3610 is a condenser-only unit designed for homeowners who already have a compatible R32 air handler or coil from a previous Goodman installation — it is not a full heat pump system but a drop-in replacement that modernizes an existing split system to current efficiency standards. The 14.3 SEER2 rating hits the federal minimum, but the real draw is the 10-year parts warranty (if registered online within 60 days) and the reliable scroll compressor that has been a Goodman staple for decades. The all-aluminum coil resists corrosion better than copper-aluminum hybrids, especially in coastal environments.

Buyers who paired this condenser with a new R32 evaporator coil and existing furnace reported cooling performance that matched or beat their previous R410A system, with some noting a slight improvement in humidity removal due to the tighter coil design. The unit is physically compact for a 3-ton condenser, making it easier to fit into tight side-yard spaces, and the solid steel exterior panels withstand hail and debris impacts without denting. Several HVAC technicians confirmed that the tubing connections are standard, so existing line sets can be reused if flushed properly.

This is strictly a cooling-only condenser — there is no reversing valve for heating, so it cannot function as a heat pump. If you need year-round heating and cooling, look elsewhere on this list. The 14.3 SEER2 is entry-level efficiency, meaning operating costs will be higher than any inverter mini-split, and the condenser requires a matched R32 coil that is not included in the box. Some units arrived with small dents from shipping, though function was unaffected in every reported case.

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Temprium’s 24,000 BTU mini split punches well above its price bracket by delivering a 19 SEER2 rating, R32 refrigerant, and a DC inverter compressor in a package that undercuts most competitors in the same efficiency tier by a significant margin. The unit covers spaces up to 1,500 square feet and includes a self-cleaning function that heats the indoor coil to 133°F to prevent mold and bacterial growth — a feature usually reserved for more expensive units. The 7-mode operation (Auto, Cool, Heat, Dry, Fan, Sleep, ECO) gives fine-grained control, and the WiFi app supports Alexa and Google Assistant voice commands.

Early adopters report the system exceeds expectations, with one owner noting that the iFeel function on the remote kept a bedroom comfortable by sensing temperature at the couch rather than from the wall-mounted head, which avoided the cold-ceiling warm-floor problem common in rooms with high ceilings. The outdoor unit runs at 32 dBa, which is genuinely quiet enough to hold a conversation next to it. The included 16-foot copper lineset uses standard 1/4-inch and 1/2-inch fittings, so professional installers will have no trouble connecting their own gauges and vacuum pump.

The installation is not for novices — multiple buyers emphasize that a vacuum pump, micron gauge, refrigerant manifold, and flaring tool are required, and the instruction booklet does not adequately walk a first-timer through the evacuation process. The WiFi setup requires the SmartLife app and a 2.4 GHz network, but the QR code in the manual leads to the wrong app, causing an initial connection headache. A few units arrived with cosmetic scratches, but function was unaffected.

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The Albott 24,000 BTU mini split sits squarely in the value sweet spot with an 18 SEER2 rating, R32 inverter compressor, and a self-cleaning function that keeps the indoor coil free of microbial buildup. The system covers up to 1,550 square feet and operates in extreme conditions from 5°F to 122°F, making it suitable for attics, garages, and workshops that see temperature extremes. The included remote and AC Freedom app provide full control, and the 5-year compressor warranty with 7-year parts coverage offers above-average peace of mind for a mid-range unit.

Buyers who are mechanically inclined but not HVAC professionals found the installation straightforward — run the line set, connect the flare fittings, evacuate the system with a vacuum pump, and open the service valves. Several owners note that the unit runs nearly silent at the lowest fan speed (29 dBa), and even on high fan the sound is no louder than a standard ceiling fan. The heating performance has been tested in 20°F weather, with owners reporting that the unit keeps a 1,000-square-foot insulated garage at 68°F without auxiliary heat.

Some issues emerged with the mounting template — no template was included, and the manual does not specify that the wall hole needs to be 3 inches wide, leading to extra trips to the hardware store. The included line set is a standard 16 feet, but routing the excess tubing without kinking requires careful planning and a tubing bender for tight corners. A minority of buyers experienced error codes on the outdoor unit within the first month, though Albott’s customer support responded quickly and sent replacement boards under warranty.

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YITAHOME’s 24,000 BTU mini split achieves a 21 SEER2 rating — one of the highest efficiency numbers in the mid-range segment — while incorporating a DC inverter compressor, R32 refrigerant, and a five-mode operation suite that includes auto, cooling, drying, heating, and fan. The unit covers up to 1,500 square feet and includes advanced features like auto defrost, self-diagnosis, and a 135°F self-cleaning function that burns off bacteria and mold from the indoor coil. The iFEEL mode, electrostatic filter, and negative ion generator target PM2.5 particles for improved indoor air quality.

Owners testing the unit in 100°F weather report that ECO mode maintains a comfortable temperature while drawing noticeably less power than their previous window units, and the 4D swing louvers distribute air evenly without creating drafty spots. The heating function works reliably in chilly weather, and the WiFi app provides full scheduling, fan-speed control, and mode selection from anywhere. Several buyers highlight that the installation kit is complete — everything from the copper lines to the remote is included — and the clear manual helped reduce install time compared to other brands.

The most common complaint involves the blower fan continuing to run after the set temperature is reached, which can lead to overcooling by as much as 14°F below the target if left in cooling mode unattended. A firmware or logic issue on certain units prevents the fan from stopping completely, which wastes energy and can make a room uncomfortably cold. The WiFi setup instructions are also poorly written, directing users to an incorrect app initially, though the correct AC Freedom app works well once discovered. A very small number of units arrived as complete failures — blowing only warm air — though customer support replaced those quickly.

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The DELLA Serena 18,000 BTU mini split holds the highest SEER2 rating in this roundup at 22 SEER2, a figure that qualifies it for Energy Star certification and potential utility rebates in many states. The 1.5-ton inverter compressor uses R32 refrigerant and operates at just 22 dBa in mute mode — literally quieter than a mechanical wristwatch in a silent room. The PureClean self-cleaning function uses heat to prevent dust and mold buildup on the indoor coil, and the bottom heating element in the outdoor unit prevents ice accumulation during winter defrost cycles, ensuring reliable heating down to 5°F.

Owners across diverse environments — from Texas concession stands to high-altitude cabins — report that the Serena cools 1,000-square-foot spaces rapidly and maintains humidity levels consistently below 50% in humid climates. The Alexa and Google Home integration works seamlessly through the DELLA app, and the geo-location feature automatically adjusts the set point when you leave or approach the home, acting like a smart thermostat. The 16.4-foot installation kit includes pre-flared copper lines that accept standard 1/4-inch and 1/2-inch connections, and the unit ships pre-charged for runs up to 25 feet.

The main drawback is the box itself — UPS handling has been rough, with several units arriving with dented condenser fins or gouged paint, and DELLA’s return process for shipping damage takes time to resolve. The indoor unit bracket is flimsy compared to the Senville bracket, requiring additional anchoring for long-term stability. And while 22 SEER2 is impressive, the 18,000 BTU capacity limits coverage to spaces under 1,100 square feet, so larger rooms will need the 24,000 BTU version instead.

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COSTWAY’s Airtural Series 24,000 BTU mini split delivers a 21 SEER2 rating and Energy Star Most Efficient certification at a price that undercuts similarly rated units by a substantial margin, making it the strongest budget option in this review. The DC inverter compressor with R32 refrigerant provides 22,000 BTU cooling and 23,000 BTU heating capacity, covering up to 1,500 square feet. The system includes a self-cleaning function at 135°F, 4D auto swing, iFEEL mode, and a 24-hour timer — features normally found on units costing significantly more.

Owners report that the outdoor unit is surprisingly quiet indoors, with one reviewer noting that a 20×40-foot room with 12-foot ceilings cooled down rapidly and stayed within one degree of the set temperature. The copper line set is fully insulated and includes a communication wire, and the included remote has a child lock for safety in homes with young children. The 5-year parts and 8-year compressor warranty is the longest basic coverage in this price tier, and COSTWAY’s support resolved issues like a missing filter cover quickly when notified.

The risk with COSTWAY is consistency — a small but vocal segment of owners experienced complete system failures (freezing, error codes, ice buildup) within the first few months, and customer support responses varied from prompt to frustratingly slow. The indoor unit’s filter requires frequent cleaning, and the remote timer instructions are confusingly written. A few units arrived with the outdoor condenser damaged in transit, though COSTWAY offered compensation in those cases rather than full replacements.