Best Heat Pumps for Home and Cold Climates: 7 Picks Compared

The best heat pump for most homes is a ductless mini split sized to the room or zone it serves, and for a whole house in a cold region the best path is a ducted or multi-zone system whose maker publishes heating output at 5°F. Among the models we researched, the Temprium 12,000 BTU unit is our top pick for a single room on standard household power because of its listed 22 SEER2 rating, and the Goodman 3-ton system with an air handler is the runner-up for homes that already have ductwork. This guide is research-based: we did not personally use these products, and we compare listing details, maker specs and published cold-climate guidance.

If you are searching for “best heat pumps for home and cold climates”, the honest answer has two halves. First, the type of heat pump matters more than the brand: air source, ductless mini split, ceiling cassette, ducted split, window or through-the-wall unit. Second, the cold-weather rating on the spec sheet matters more than the headline efficiency number. A unit can post a great SEER2 for summer cooling and still lose much of its heating output when the outdoor air drops toward 5°F. We explain how to read those numbers below and we say plainly when a listing does not state them.

Top Picks at a Glance

• Best Overall (single room, 115V): Temprium 12,000 BTU Mini Split, 22 SEER2
• Best Value: Rellytech 12,000 BTU Mini Split Heat Pump, 20 SEER2
• Best Smart Features: COSTWAY 12,000 BTU Mini Split with Wi-Fi and Alexa support
• Best Brand-Name Wall Unit: Senville LETO 12,000 BTU Mini Split
• Best for DIY Installers: MRCOOL DIY Select 24,000 BTU with pre-charged line sets
• Best for Larger Open Spaces: Temprium 24,000 BTU Mini Split, 230V
• Best for Homes With Ducts: Goodman 3-Ton 15 SEER2 R-32 Heat Pump System with Air Handler

Comparison Table

1. Temprium 12,000 BTU Mini Split: Best Overall for a Single Room

The Temprium 12,000 BTU mini split is listed as an air conditioner and heat pump on 115V power, with a 22 SEER2 rating and coverage for up to 750 square feet. It earns the top spot because it combines a high listed efficiency number with ordinary household voltage, which avoids a new 230V circuit in many homes.

• Capacity: 12,000 BTU, heating and cooling
• Power: 115V
• Efficiency: 22 SEER2 as listed
• Coverage: up to 750 sq ft per listing
• Low-ambient heating capacity: not listed

Best for: a bedroom, den, converted garage or sunroom in a mild to moderate climate. Skip if: your winters regularly sit near or below 5°F and you plan to rely on it as the only heat source.

SEER2 measures seasonal cooling efficiency, so the 22 figure tells you about summer electricity use, not winter heating strength. What matters for cold climates is HSPF2 and the rated capacity at 17°F and 5°F, and the listing does not state them. Before buying, ask the seller or maker for the heating capacity table. If you cannot get one, treat the unit as a shoulder-season and mild-winter heater.

In practice a single-zone 12,000 BTU unit is a good match for a room of roughly 400 to 600 square feet with typical insulation. The listed 750 square foot coverage assumes favorable conditions, so size on the lower side if the room has big windows, a vaulted ceiling or an old, leaky envelope.

Pros: runs on 115V; high listed SEER2; inverter-style operation reduces start-stop cycling; sized for common rooms. Cons: cold-weather output not published in the listing; requires correct refrigerant line handling at install.

2. Rellytech 12,000 BTU Mini Split Heat Pump: Best Value

Rellytech sells several mini splits, and the 12,000 BTU heat pump model is listed at 20 SEER2 on 115V with quiet inverter operation and pre-charged lines. It is the budget route into ductless heating and cooling.

• Capacity: 12,000 BTU
• Power: 115V
• Efficiency: 20 SEER2 as listed
• Design: ductless inverter, pre-charged
• Heating output at low temperatures: not listed

Best for: a first-time mini split buyer who wants to keep the project cost down. Skip if: you need a published cold-climate rating or a long warranty backed by a nationwide dealer network.

Rellytech also lists 9,000 BTU and 18,000 BTU variants. The 9,000 BTU size suits a small bedroom or office, while the 18,000 BTU version runs on 208-230V and suits a larger living area. The general rule is to pick the smallest unit that meets the room load, because an oversized inverter unit wastes money and can short-cycle.

Pre-charged line sets are a convenience: they reduce the need for specialized tools, but the maker’s installation manual still governs how to mount the indoor head, route the condensate line and connect wiring. If local code requires a licensed technician for refrigerant or electrical work, follow it.

Pros: low entry cost; 115V; multiple sizes; pre-charged. Cons: limited published cold-weather data; support quality varies by seller.

3. COSTWAY 12,000 BTU Mini Split: Best for Smart-Home Control

The COSTWAY 12,000 BTU mini split is listed with a 20 SEER2 rating, 115V operation, Wi-Fi control and Alexa compatibility, and covers up to 750 square feet per the listing. It suits renters-turned-owners and tech-first households who want scheduling from a phone.

• Capacity: 12,000 BTU, air conditioner and heater
• Power: 115V, wall-mounted ductless
• Efficiency: 20 SEER2 as listed
• Controls: Wi-Fi, Alexa
• Rated heating at 5°F: not listed

Best for: a bedroom or office where schedules and remote control matter. Skip if: you dislike app-dependent appliances or need a documented cold-climate listing.

Smart controls matter more than they sound for heat pumps. Heat pumps do their best work when held at a steady setpoint, not when slammed from 60°F to 72°F, which pushes the system into backup or high-speed operation. A schedule that raises the temperature gradually before you wake up is more efficient than a big manual jump. A remote lets you pre-warm the room on the way home without creating a large swing.

COSTWAY also lists a 24,000 BTU 230V model, which is a sensible next size when a room outgrows the 12,000 BTU unit.

Pros: app and voice control; 115V; common size; listed coverage. Cons: app ecosystems change over time; heating curves not listed.

4. Senville LETO 12,000 BTU: Best Brand-Name Wall Unit

The Senville LETO series is sold as a mini split air conditioner and heat pump with wall-mounted indoor heads, Alexa support and quiet operation per the listing. Senville offers 9,000, 12,000 and 24,000 BTU sizes in this line.

• Capacity: 12,000 BTU (also 9,000 and 24,000 BTU)
• Type: ductless, wall mounted, heat pump
• Controls: works with Alexa
• Sound: quiet operation claimed in listing; decibel figures not listed in the title
• Cold-weather output: check the maker’s specification sheet

Best for: buyers who prefer a company with a longer track record in the DIY mini split market and a clear size ladder. Skip if: you want the lowest possible entry cost.

The value of a size ladder is that you can match each zone. A 9,000 BTU head for a small bedroom, 12,000 BTU for a master suite, and 24,000 BTU for a great room is a common pattern. Each zone gets its own outdoor unit unless you buy a multi-zone system, so count the outdoor condensers and the wall space for them when planning.

Confirm voltage before ordering: small models often use 115V or 208-230V depending on the SKU, and mixing them up is an expensive mistake.

Pros: multiple sizes; wall mount; smart-speaker support; established line. Cons: price tier higher than entry brands; voltage varies by SKU.

5. MRCOOL DIY Select 24,000 BTU: Best for DIY Installers

The MRCOOL DIY Select 24,000 BTU is listed as a 230V heat pump with a no-vacuum DIY install using pre-charged line sets. The pitch is simple: fewer specialty tools, such as a vacuum pump and gauges, are needed because the lines arrive ready to connect.

• Capacity: 24,000 BTU, heating and cooling
• Power: 230V
• Install: no-vacuum DIY approach with pre-charged line sets
• Efficiency and low-temperature output: not listed in the title

Best for: a capable DIY owner who wants a larger zone and is comfortable with a dedicated 230V circuit installed by an electrician. Skip if: your local code or warranty requires a licensed HVAC contractor.

The phrase “no-vacuum” is a feature of the quick-connect line sets, not a statement that vacuuming is never needed with other systems. With a conventional mini split, a technician evacuates the lines to remove air and moisture before opening the refrigerant. If you buy a conventional unit instead, an HVAC vacuum pump and gauge kit, such as the VIVOHOME 3.5 CFM kit listed in our Also Consider section, is the tool for that job. Refrigerant handling has legal requirements in many places, so verify what you are permitted to do yourself.

Pros: reduced special tooling; larger capacity; DIY-oriented documentation. Cons: premium tier; still needs correct electrical and mounting; warranty terms vary.

6. Temprium 24,000 BTU Mini Split: Best for Large Open Spaces

The Temprium 24,000 BTU model is listed as a 230V, 19 SEER2 air conditioner and heat pump that covers up to 1,500 square feet. It is the pick when one head must serve a big open room, a basement or a shop.

• Capacity: 24,000 BTU
• Power: 230V
• Efficiency: 19 SEER2 as listed
• Coverage: up to 1,500 sq ft per listing
• Low-ambient rating: not listed

Best for: open floor plans and basements where one air stream reaches most of the space. Skip if: the area is divided into many closed rooms. A single head cannot push enough air through closed doors and hallways, so closed rooms stay cooler in winter.

A common mistake is buying a large single head for a house with multiple bedrooms. Warm air from one wall unit tends to stay in the room where it is installed. For divided homes, consider several smaller zones, a multi-zone outdoor unit, or a ducted system.

Pros: large coverage; 230V efficiency; one outdoor unit. Cons: uneven distribution in divided homes; needs a 230V circuit.

7. Goodman 3-Ton 15 SEER2 Heat Pump System: Best for Homes With Ducts

The Goodman system pairs a multi-position R-32 heat pump (GLZS4BA3610) with an air handler (AMST36CU1300) at 3 tons and 15 SEER2. It is a traditional ducted split system for homes that already have supply and return ductwork.

• Capacity: 3 tons (36,000 BTU nominal)
• Efficiency: 15 SEER2 as listed
• Refrigerant: R-32
• Configuration: heat pump outdoor unit with air handler
• Cold-climate certification: not listed; check the maker’s performance data

Best for: replacing an older split system in a ducted house, with a contractor who runs a proper load calculation. Skip if: your ducts are leaky or undersized. Duct losses can eat a large share of the output, so seal or replace them first.

Brand-name ducted systems from Bryant, Carrier and others are usually sold and installed through contractor networks, and many readers ask about “best Bryant heat pumps”. We did not research those lines for this guide, and we list only what we verified in the store. The principle is the same: pick by the published heating capacity at your design temperature and by the quality of the installer.

Pros: whole-home distribution through existing ducts; modern R-32 refrigerant; common parts availability. Cons: professional installation; not a cold-climate listing as far as we can verify; premium tier.

Also Consider

Albott 12,000 BTU Mini Split (SEER2 18)

Listed as a 115V inverter unit with self-cleaning. A reasonable alternative if the Temprium and Rellytech models are out of stock. Heating output at low temperatures is not listed.

Amana PTAC Heat Pump, 15,000 BTU

A through-the-wall packaged unit rated 3.5 kW with a 20 A circuit and R-32 refrigerant per the listing. It suits apartments, additions and rooms without a place for an outdoor condenser.

VIVOHOME 3.5 CFM Vacuum Pump and Gauge Kit

This is the HVAC vacuum pump tool, not a heat pump. People searching for “a/c vacuum pumps” want this kind of kit: a 1/4 HP, 3.5 CFM single-stage pump with a manifold gauge set, listed for A2L refrigerants. Use it only with the right refrigerant and training.

Aquastrong Mini Split Condensate Pump

A 9.6 GPH pump with a safety switch for rooms where the indoor head sits below the drain path. Check the maximum lift and your unit’s condensate output before buying.

Heat Pump Types Explained

“Basement heat pumps” are normally ceiling cassettes, low-wall units or a mini split head with a condensate pump, because the indoor unit sits below the exterior drain. “Ceiling heat pumps” usually mean cassettes. “Coastal” installations need coated coils and corrosion-resistant hardware if salt air is a concern, so ask the maker about coastal protection.

How We Chose

We searched the store for heat pumps and related HVAC tools, shortlisted real products that are currently sold, and compared the specs stated in each listing. We cross-checked what a cold-climate heat pump should publish against the specification from NEEP, a regional energy efficiency organization, and related guidance from NEEA. We did not personally use these products. Where a spec was missing, we wrote “not listed” rather than guess. We limited the picks to two per brand and avoided price figures, using tier words instead.

Buying Guide

Read the cold-weather numbers, not just SEER2

For cold climates, the NEEP cold climate specification requires, among other things, a variable-capacity compressor, a coefficient of performance of at least 1.75 at 5°F, and a heating capacity at 5°F of at least 70% of the capacity at 47°F. NEEA recommends a stricter filter of 80% for the Northwest. Treat these as benchmarks. If a listing does not provide a capacity table at 17°F and 5°F, ask for it. A heat pump without that table is a risk in Minnesota, the Northeast or other cold regions.

Size by load, not by square feet

Coverage claims on listings, such as 750 square feet for 12,000 BTU, assume moderate insulation and mild conditions. A qualified installer should run a Manual J load calculation, especially for a whole house. As a rough planning range, many modest rooms land between 9,000 and 12,000 BTU, while larger open areas need 18,000 to 24,000 BTU, but your insulation, windows and climate can move that substantially.

Match voltage and circuit

115V units plug into a dedicated circuit that an electrician should verify. 208-230V units need a different breaker and wiring. The wrong voltage cannot be fixed with an adapter. Check the nameplate data in the manual.

Plan for defrost and backup heat

Outdoor coils frost in cold, damp weather, and the unit runs defrost cycles that briefly reduce indoor heat. Many cold-region homes keep a backup source, such as electric resistance, a furnace or a stove, for the coldest nights. Ask how the system behaves at its minimum rated operating temperature.

Think about placement and noise

Mount the outdoor unit above expected snow depth on a stand, keep clearance from walls and shrubs, and avoid pointing it at a neighbor’s bedroom window. For the indoor head, a high wall position on the room’s long side spreads air best. A condensate pump can help where gravity drainage is not possible.

What about heat pumps for koi ponds and pools?

Pond and pool heat pumps are a separate product class. They heat water through a titanium or similar exchanger and are sized by water volume. Some queries, like “air source heat pumps for koi ponds”, refer to them. The Raypak 140K BTU pool heat pump in the store is that class, not a home comfort system, and we did not evaluate it here. Ask the maker about pond use and minimum water flow.

Common Mistakes

• Buying on SEER2 alone and ignoring the cold-weather capacity table.
• Oversizing a single head and expecting it to heat closed rooms down the hall.
• Skipping a condensate plan for a basement installation.
• Ignoring the thermostat: heat pump thermostats differ from furnace-only models, and a mismatch can trigger backup heat at the wrong time.
• Leaving duct leaks unsealed before installing a ducted system.

Frequently Asked Questions

What is the best heat pump for a cold climate?

The best choice is a variable-capacity system that lists strong heating output at 5°F, ideally on the NEEP cold climate product list. Among the units we researched, none of the listings state that rating in the title, so request the maker’s capacity table before buying.

Are mini split heat pumps good in the winter?

Yes, many are, but performance varies by model. Inverter mini splits can heat well in cold weather, yet each unit has a minimum rated operating temperature and a capacity that falls as the outdoor air cools. Check the spec sheet for both.

What are the best affordable heat pumps?

The Rellytech 12,000 BTU and the COSTWAY 12,000 BTU are the more affordable ductless options in our shortlist. They save money up front but publish less cold-weather data than units certified for cold climates.

Where is the best place for a heat pump?

Put the indoor head on a high wall or ceiling with clear airflow across the room, and place the outdoor unit on a level pad or wall bracket with clearance on all sides and above expected snow depth. Basement installations often need a condensate pump or a ceiling cassette.

Do I need a vacuum pump to install a mini split?

Conventional installs need the line set evacuated with a vacuum pump and gauges before the refrigerant is released, while pre-charged and quick-connect line sets such as the MRCOOL DIY Select aim to skip that step. Follow the maker’s manual and local rules on refrigerant handling.

Can a heat pump work with an air handler and existing ducts?

Yes. A ducted split system such as the Goodman 3-ton pairs the outdoor heat pump with an air handler that feeds your existing ducts. Have a contractor check duct size and sealing and run a load calculation.

Do heat pumps need backup heat in very cold regions?

Often yes. Even cold-climate units lose capacity as it gets colder, so many homes in places like Minnesota or the Northeast keep a furnace, boiler or electric resistance heat for extreme nights. Your installer can size the combination to your design temperature.

Which One Should You Buy?

Choose the Temprium 12,000 BTU for a single room on 115V, the Rellytech or COSTWAY if you want a lower entry point or smart control, and the Senville LETO if you want a clear size ladder. Pick the MRCOOL DIY Select or Temprium 24,000 BTU for large zones on 230V, and the Goodman system if you have ducts and a contractor. In a cold climate, no matter which model you choose, get the heating capacity at 5°F in writing before you pay. Nothing here replaces a load calculation and a licensed installer, and we do not give efficiency, cost or rebate figures as fact because they vary by model, region and year.

Sources

• NEEP, Cold Climate Air Source Heat Pump Specification, Version 4.0
• NEEA, Cold Climate Ductless Heat Pump Specification and Recommendations
• Manufacturer pages and listing details for Temprium, Rellytech, COSTWAY, Senville, MRCOOL, Goodman, Albott, Amana, VIVOHOME and Aquastrong
• ENERGY STAR cold climate heat pump criteria

Last updated: October 2026