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We have installed thousands of heat pumps across 8 brands since 2019. This is our honest ranking based on cold-climate performance, reliability, and real-world installed costs — not manufacturer marketing. The Section 25C federal credit is dead, but state rebates can still offset $500-$10,000.
8
Brands Ranked
$0
Federal Tax Credit
$1.5K-$8K
Per Zone Installed
-15F
Best Cold Rating
Skip the research — here are our recommendations by category, based on installing thousands of heat pumps since 2019.
Best Overall
Mitsubishi Electric
Hyper-Heat H2i reliability, largest cold-climate installer network
Best Extreme Cold
Mitsubishi Hyper-Heat
Works to -13F with full rated heating capacity
Best Budget
Goodman/Daikin
$3,000-$5,000 installed, lifetime compressor warranty
Best Efficiency
Fujitsu XLTH2
SEER2 up to 33 — lowest operating costs
Best Smart Features
Carrier Infinity
Cor thermostat with HomeKit, Alexa, Google
Best DIY Mini-Split
MRCOOL
Pre-charged lines, no HVAC license needed
Best Ducted System
Bosch IDS 2.0
Quietest outdoor unit (56 dB), variable-speed inverter
Best Warranty
Goodman
Lifetime compressor warranty — no other brand matches
Best Looking
LG Art Cool
Mirror-finish wall units, ThinQ app with HomeKit
Detailed reviews based on our installation experience, customer feedback, and real-world cold-climate performance data.
The Cold Climate King
| Model | Type | SEER2 | HSPF2 |
|---|---|---|---|
| MSZ-FH (Hyper-Heat H2i) | Wall-mount ductless | 30.5 | 13.5 |
| MSZ-FS (Hyper-Heat) | Wall-mount ductless | 26.1 | 12.5 |
| MSZ-GL | Wall-mount standard | 22.0 | 10.6 |
| MVZ-A (Hyper-Heat) | Ducted air handler | 19.0 | 11.5 |
-13F
19.0-30.5
10.6-13.5
19-46 dB (indoor)
12-year compressor, 5-year parts
$4,000-$7,000
Kumo Cloud Wi-Fi
R-410A
NuWatt is a Mitsubishi Diamond Contractor — our primary brand for all cold-climate installations. We stock MSZ-FH and MSZ-FS units for fast turnaround. Typical single-zone install: 4-6 hours. Multi-zone systems (2-5 heads) take 1-2 days. We recommend the MSZ-FH for living spaces and MSZ-FS for bedrooms where the 3D i-see sensor matters less.
Mitsubishi earns our top ranking because no other brand matches its cold-climate track record. The Hyper-Heat H2i line maintains full rated heating capacity at -13F — that is not a marketing claim, it is what we measure in the field across hundreds of installations. The MSZ-FH with 30.5 SEER2 is the most efficient wall-mount unit available. Yes, you pay a premium, but for New England homeowners replacing oil or propane heat, Mitsubishi is the safest investment.
Efficiency Champion
| Model | Type | SEER2 | HSPF2 |
|---|---|---|---|
| XLTH2 (Extra Low Temp) | Wall-mount ductless | 33.0 | 14.2 |
| XLTH (Extra Low Temp) | Wall-mount ductless | 30.0 | 13.0 |
| RLS3H (Halcyon) | Wall-mount ductless | 25.0 | 12.0 |
| RLFCD (Slim Duct) | Concealed ducted | 22.0 | 11.5 |
-15F
18.0-33.0
10.0-14.2
20-49 dB (indoor)
10-year compressor, 5-year parts
$3,500-$6,000
FGLair Wi-Fi app
R-410A
NuWatt carries Fujitsu XLTH and RLS3H units as our secondary cold-climate line. We recommend Fujitsu when Mitsubishi units are backordered (4-6 week delays happen seasonally) or when the customer needs the absolute best efficiency rating for a specific room. The XLTH2's 33 SEER2 makes a noticeable difference on annual electric bills — roughly $50-80/year savings over a comparable Mitsubishi in a typical bedroom zone.
Fujitsu is NuWatt's secondary brand — and in pure spec terms, the XLTH2 at 33 SEER2 and -15F operation actually outperforms every Mitsubishi model. So why is it not our top pick? Installer network and parts availability. Mitsubishi has deeper market penetration, more certified contractors, and faster warranty claims. That said, if your installer is Fujitsu-certified (NuWatt is), the XLTH2 is arguably the best cold-climate unit money can buy.
Global Giant, Great Value
| Model | Type | SEER2 | HSPF2 |
|---|---|---|---|
| Aurora (Cold Climate) | Wall-mount ductless | 24.0 | 12.0 |
| Fit (Slim Ducted) | Side-discharge ducted | 18.5 | 10.0 |
| Quaternity | Wall-mount premium | 22.5 | 11.0 |
| Emura (Designer) | Wall-mount ductless | 21.0 | 10.5 |
-4F (Aurora), 0F (Fit)
17.0-24.0
9.5-12.0
23-55 dB (indoor)
12-year compressor, 5-year parts
$3,000-$5,500
Daikin One+ smart thermostat
R-410A
NuWatt installs Daikin Fit systems for whole-home ducted conversions. The slim side-discharge design means we can often reuse the existing furnace pad — saves $200-400 on installation. The Daikin One+ thermostat integrates well with most home automation systems. For New England cold climates, we recommend the Aurora ductless line over the Fit for primary heating zones.
Daikin occupies the sweet spot between premium and budget. The Fit line is our go-to recommendation for homeowners converting from central AC to a ducted heat pump — it fits in the existing cabinet footprint and delivers 18.5 SEER2 efficiency. For ductless applications, the Aurora handles cold climates competently down to -4F, though it cannot match Mitsubishi or Fujitsu at the extremes. If your winters rarely hit single digits, Daikin offers excellent value.
Legacy Brand, Strong Ducted
| Model | Type | SEER2 | HSPF2 |
|---|---|---|---|
| Infinity 24 (Greenspeed) | Ducted split system | 24.0 | 13.0 |
| Performance 17 | Ducted split system | 18.0 | 10.0 |
| 38MPRAQ (Ductless) | Wall-mount ductless | 22.0 | 11.5 |
| Bryant 288BNV | Ducted variable-speed | 22.0 | 12.5 |
-15F (Infinity series)
17.0-24.0
9.5-13.0
25-56 dB (indoor)
10-year compressor, 10-year parts
$4,500-$8,000
Cor smart thermostat
R-410A
NuWatt installs Carrier Infinity systems for whole-home ducted projects where the customer already has quality ductwork. The Greenspeed variable-speed compressor runs at exactly the speed needed — no on/off cycling — which means better comfort and lower bills. We pair it with the Cor thermostat for smart scheduling. For ductless zones (additions, basements), we still recommend Mitsubishi or Fujitsu over Carrier's ductless lineup.
Carrier and Bryant are the same equipment — Bryant is Carrier's sister brand sold through independent dealers at 10-15% less. The Infinity Greenspeed is a genuinely excellent ducted heat pump with variable-speed performance rated to -15F. If you have existing ductwork and want the best ducted system available, Carrier/Bryant belongs on your shortlist. The downside is price — you are paying for the brand name, the dealer network, and the Cor thermostat ecosystem.
The Quiet Performer
| Model | Type | SEER2 | HSPF2 |
|---|---|---|---|
| IDS 2.0 (BOVA-36HDN1-M20G) | Ducted inverter | 20.0 | 11.0 |
| IDS 2.0 (BOVA-48HDN1-M20G) | Ducted inverter (4-ton) | 18.5 | 10.5 |
| IDS Premium | Ducted inverter (high-end) | 21.0 | 11.5 |
| Climate 5000 | Wall-mount ductless | 22.0 | 10.0 |
-5F
18.0-22.0
10.0-11.5
56 dB outdoor / 26 dB indoor
10-year compressor, 5-year parts
$4,000-$7,000
Compatible with Ecobee
R-410A
NuWatt installs Bosch IDS 2.0 for ducted projects where noise is a primary concern. The unit's compact footprint (smaller than most 3-ton outdoor units) makes it ideal for tight side yards. We can often pair it with the existing air handler if it is in good condition — saves $1,500-2,500 on the install. The variable-speed inverter means it rarely runs at full power, which is why it is so quiet in real-world use.
Bosch is NuWatt's top ducted heat pump recommendation, and the reason is noise. The IDS 2.0 outdoor unit operates at 56 dB — dramatically quieter than the 62-68 dB typical of Carrier, Daikin, or Goodman units. For homes with outdoor units near bedrooms, patios, or property lines, this matters enormously. The -5F cold-climate limit means it handles most of southern New England, but for northern Maine or New Hampshire, Mitsubishi's ductless line is a better bet.
Best Budget Ducted
| Model | Type | SEER2 | HSPF2 |
|---|---|---|---|
| GSXC18 (Variable-Speed) | Ducted split system | 18.0 | 10.0 |
| GSZC18 (Two-Stage) | Ducted split system | 16.0 | 9.5 |
| GSXH5 (Single-Stage) | Ducted split system | 15.5 | 8.5 |
| GSZB6 (Budget) | Ducted split system | 15.2 | 8.1 |
10F (recommended)
15.2-18.0
8.1-10.0
60-68 dB outdoor
Lifetime compressor, 10-year parts
$3,000-$5,000
ComfortBridge communicating system (select models)
R-410A
NuWatt installs Goodman GSXC18 systems for customers who need a budget-friendly ducted heat pump in moderate climates. We strongly advise against Goodman as a primary heating system in zones 5-6 (northern New England) — it simply does not have the cold-weather capacity. For supplemental cooling with some shoulder-season heating, or for homes in southern CT, RI, and coastal MA, Goodman is a solid value play.
Goodman is the Toyota Corolla of heat pumps — not exciting, not cutting-edge, but reliable and affordable. The lifetime compressor warranty is genuinely industry-best, and being owned by Daikin means the manufacturing quality has improved significantly since the early 2010s. For homes in zones 4-7 (mid-Atlantic, Southeast, Southwest) where temperatures rarely drop below 10F, the GSXC18 at $3,000-5,000 installed is hard to beat on value. Do not buy Goodman for a primary heat source in New England.
Style Meets Performance
| Model | Type | SEER2 | HSPF2 |
|---|---|---|---|
| Art Cool Mirror | Wall-mount designer | 25.0 | 11.8 |
| Red Series (LAU-H) | Cold-climate ductless | 22.5 | 11.5 |
| Multi F Outdoor | Multi-zone outdoor unit | 22.0 | 10.8 |
| Ceiling Cassette | 4-way cassette | 20.0 | 10.5 |
-13F (Red series)
19.5-25.0
10.0-11.8
19-50 dB (indoor)
10-year compressor, 5-year parts
$3,500-$6,000
LG ThinQ app
R-410A
NuWatt installs LG systems when the customer prioritizes aesthetics (Art Cool line) or smart home integration. The Red series is our recommendation for LG cold-climate installs. The Multi F outdoor units are excellent for multi-zone homes — supporting up to 8 heads from a single outdoor unit is unmatched. Installation complexity is similar to Mitsubishi.
LG is the dark horse of the heat pump market. The Red series delivers -13F cold-climate performance that rivals Mitsubishi, and the Art Cool line is hands-down the best-looking indoor unit you can buy. The ThinQ app integration is the best in the industry — it actually works with Apple HomeKit, which neither Mitsubishi nor Fujitsu can claim. The catch is dealer network: outside of major metro areas, finding an LG HVAC-certified installer can be challenging.
The DIY Option
| Model | Type | SEER2 | HSPF2 |
|---|---|---|---|
| DIY 4th Gen | Wall-mount ductless (DIY) | 22.0 | 10.0 |
| DIY Multi-Zone | Multi-zone ductless (DIY) | 20.0 | 9.5 |
| Advantage 4th Gen | Wall-mount ductless | 20.0 | 9.0 |
| Universal 2-3 Ton | Ducted split system | 17.0 | 8.5 |
5F (most models)
17.0-22.0
8.0-10.0
25-55 dB (indoor)
7-year compressor, 5-year parts
$1,500-$3,500
SmartHVAC app
R-410A
NuWatt does not install MRCOOL. We include it in this guide because customers ask about it frequently. If you are considering MRCOOL, we recommend it only for supplemental zones (garages, workshops, additions) in mild climates. For primary heating in New England, invest in Mitsubishi, Fujitsu, or Bosch. The $2,000-4,000 savings on MRCOOL will cost you more in heating bills and repairs over 10 years.
MRCOOL is the only heat pump brand designed for DIY installation, and for the right application — a garage, workshop, bonus room, or supplemental zone — it is a legitimate option. At $1,500-3,500 per zone, the savings over professional installation are real. But be honest with yourself: MRCOOL is not a primary heating system for cold climates. The cold-weather performance is mediocre, the build quality is a tier below professional brands, and when something breaks, you are on your own. NuWatt does not install or service MRCOOL units.
All 8 brands compared across every spec that matters. Scroll right on mobile.
| Spec | Mitsubishi | Fujitsu | Daikin | Carrier | Bosch | Goodman | LG | MRCOOL |
|---|---|---|---|---|---|---|---|---|
| NuWatt Rating | 9.5/10 | 9/10 | 8.5/10 | 8.5/10 | 8/10 | 7.5/10 | 8/10 | 6.5/10 |
| Cold Climate Min | -13F | -15F | -4F (Aurora), 0F (Fit) | -15F (Infinity series) | -5F | 10F (recommended) | -13F (Red series) | 5F (most models) |
| SEER2 Range | 19.0-30.5 | 18.0-33.0 | 17.0-24.0 | 17.0-24.0 | 18.0-22.0 | 15.2-18.0 | 19.5-25.0 | 17.0-22.0 |
| HSPF2 Range | 10.6-13.5 | 10.0-14.2 | 9.5-12.0 | 9.5-13.0 | 10.0-11.5 | 8.1-10.0 | 10.0-11.8 | 8.0-10.0 |
| Noise Level | 19-46 dB (indoor) | 20-49 dB (indoor) | 23-55 dB (indoor) | 25-56 dB (indoor) | 56 dB outdoor / 26 dB indoor | 60-68 dB outdoor | 19-50 dB (indoor) | 25-55 dB (indoor) |
| Warranty | 12-year compressor, 5-year parts | 10-year compressor, 5-year parts | 12-year compressor, 5-year parts | 10-year compressor, 10-year parts | 10-year compressor, 5-year parts | Lifetime compressor, 10-year parts | 10-year compressor, 5-year parts | 7-year compressor, 5-year parts |
| Price/Zone | $4,000-$7,000 | $3,500-$6,000 | $3,000-$5,500 | $4,500-$8,000 | $4,000-$7,000 | $3,000-$5,000 | $3,500-$6,000 | $1,500-$3,500 |
| Smart Features | Kumo Cloud Wi-Fi | FGLair Wi-Fi app | Daikin One+ smart thermostat | Cor smart thermostat | Compatible with Ecobee | ComfortBridge communicating system (select models) | LG ThinQ app | SmartHVAC app |
| Refrigerant | R-410A | R-410A | R-410A | R-410A | R-410A | R-410A | R-410A | R-410A |
All prices are fully installed costs including labor, permits, and commissioning. Prices may vary by region and installation complexity. MRCOOL prices are equipment-only (DIY install).
The Section 25C energy efficiency tax credit expired December 31, 2025. That means zero federal money for heat pump purchases. But state programs still offer significant rebates.
Mass Save
Up to $10,000
Income-based rebates for heat pump installation. $10,000 max for income-eligible, $1,250-$2,500 standard. Covers ducted and ductless systems.
Energize CT
$250-$1,000/ton
Standard tier: $250/ton (max $2,500). Energy Optimization tier: $1,000/ton (max $10,000). Smart-E Loan at 0.99% APR available.
Efficiency Maine
$1,000-$3,000/unit
$1,000/unit standard, $2,000 moderate-income, $3,000 low-income. Max 3 units. Covers ductless and ducted heat pumps.
Clean Heat RI
60% of cost (max $11,500)
60% of project cost (max $11,500) for standard track. 100% (max $18,000) for income-eligible. Largest per-household rebate in NE.
Whole Home Program
Up to $7,500
$2,000 base + $200 per TES point. BPI-certified installer required. PSE&G adds $900 instant rebate on top.
Efficiency Vermont
$500-$1,500/unit
$500 standard, up to $1,500 income-eligible per cold-climate heat pump. Additional utility rebates may stack.
No state rebate
SB 303 (2024) repealed NH's state energy rebate program. No state-level heat pump incentive exists in 2026.
Utility-specific only
No statewide program. Austin Energy ~$3,000 + 0% APR. CPS Energy $100-275/ton. Oncor $600/unit through retailers.
Act 129 utility rebates
$200-$750
Utility-run rebates through Act 129. PPL, PECO, and Duquesne Light offer $200-750 per qualifying heat pump.
Every heat pump brand is transitioning from R-410A to R-454B refrigerant. Here is what it means for your purchase decision.
Some homeowners ask if they should wait for R-454B models. Our advice: do not wait. The performance difference between R-410A and R-454B is negligible for homeowners. R-410A service refrigerant will be available for decades. Both refrigerants deliver the same heating and cooling performance. The transition matters for the environment (lower GWP is good), but it should not delay your heat pump purchase. Buy the best system available today and start saving on heating bills now.
Four key decisions that determine which brand and system type is right for your home.
Choose Ductless If:
Best brands: Mitsubishi, Fujitsu, LG
Choose Ducted If:
Best brands: Bosch, Carrier, Daikin, Goodman
Single Zone ($3,000-$7,000)
Multi-Zone ($12,000-$30,000)
Design temp below -5F (ME, NH, VT, upstate NY)
Require: Mitsubishi Hyper-Heat, Fujitsu XLTH, or Carrier Infinity
Design temp 0F to 10F (MA, CT, RI, NJ, PA)
Good options: Mitsubishi, Fujitsu, Bosch IDS 2.0, LG Red, Carrier
Design temp above 10F (TX, Southeast, Southwest)
Any brand works. Optimize for cooling efficiency (SEER2) and budget.
Under $5,000 per zone
Goodman (ducted), Daikin Fit (ducted), MRCOOL (DIY only). Best for mild climates and budget constraints.
$5,000-$7,000 per zone
Mitsubishi, Fujitsu, Bosch, LG. Best balance of performance, efficiency, and cost for cold climates.
$7,000+ per zone
Carrier Infinity Greenspeed, Mitsubishi MSZ-FH. Premium performance, best warranties, maximum comfort.
We are transparent about our brand preferences. Here is what we install and the honest reasoning behind each choice.
Our go-to for all cold-climate ductless installations. We are a Diamond Contractor with the deepest inventory and fastest warranty turnaround. The Hyper-Heat H2i line has never failed to heat a New England home through winter in our experience.
Best for: Ductless primary heat, cold climates
Price: $4,000-$7,000/zone installed
Why: Best cold-climate track record, deepest parts inventory, fastest service
Our backup cold-climate brand and our efficiency champion. We install Fujitsu when Mitsubishi is backordered or when the customer needs the absolute highest SEER2 rating. The XLTH2 at 33 SEER2 delivers the lowest operating costs of any heat pump we install.
Best for: Maximum efficiency, -15F capability
Price: $3,500-$6,000/zone installed
Why: Best specs per dollar, covers Mitsubishi backorder gaps
Our top ducted system recommendation, especially for noise-sensitive installations. The IDS 2.0 outdoor unit at 56 dB is dramatically quieter than any Carrier, Daikin, or Goodman unit. For homes with outdoor units near living spaces, Bosch is the clear winner.
Best for: Ducted systems, noise-sensitive sites
Price: $4,000-$7,000 installed
Why: Quietest outdoor unit, excellent variable-speed comfort
NuWatt also installs Daikin, Carrier, Goodman, and LG when the project calls for it. We do not receive higher margins from Mitsubishi or Fujitsu — our brand recommendations are based on 6+ years of installation data, warranty claim rates, and customer satisfaction scores. We do not install MRCOOL. Our goal is to match the right brand to your home, climate, budget, and existing infrastructure.
Answers to the most common questions about heat pump brands and selection.
Mitsubishi Electric is the best overall heat pump brand in 2026 for cold-climate performance. Their Hyper-Heat H2i technology maintains full rated heating capacity at -13F, and they have the largest cold-climate installer network in the US. For maximum efficiency, Fujitsu XLTH2 reaches 33 SEER2. For budget buyers, Goodman offers a lifetime compressor warranty starting at $3,000 installed.
No. The Section 25C residential energy efficiency tax credit expired on December 31, 2025, under the One Big Beautiful Bill Act. Homeowners who purchase heat pumps in 2026 receive zero federal tax credit. However, state-level rebate programs (Mass Save, Efficiency Maine, Energize CT, Clean Heat RI, etc.) remain active and can offset $500-$10,000 depending on your state and income level.
For extreme cold weather (-10F and below), Mitsubishi Hyper-Heat H2i and Fujitsu XLTH2 are the best options. Mitsubishi maintains rated capacity to -13F and has the best cold-weather track record. Fujitsu XLTH2 is rated to -15F with the highest efficiency (33 SEER2). Carrier Infinity Greenspeed is also rated to -15F but costs more. Avoid Goodman, MRCOOL, and standard Daikin models for primary heating in cold climates.
Both are excellent cold-climate heat pumps. Mitsubishi wins on installer network, parts availability, brand recognition, and real-world track record. Fujitsu wins on pure specs — the XLTH2 has higher SEER2 (33 vs 30.5), lower minimum operating temperature (-15F vs -13F), and costs $500-1,000 less per zone. If your installer is certified for both, Fujitsu offers better value. If availability and service matter most, choose Mitsubishi.
Heat pump installation costs in 2026 range from $3,000 (Goodman single-zone ducted) to $8,000 (Carrier Infinity Greenspeed per zone). For ductless mini-splits: Mitsubishi $4,000-7,000/zone, Fujitsu $3,500-6,000/zone, LG $3,500-6,000/zone. For whole-home multi-zone systems (3-5 zones), expect $12,000-$30,000 total installed. MRCOOL DIY units cost $1,500-3,500 in equipment but are not professionally installed.
No. MRCOOL is a budget DIY option that is adequate for supplemental heating in mild climates — garages, workshops, and bonus rooms. It cannot match Mitsubishi or Fujitsu in cold-climate performance (fails below 5F vs -13F/-15F), build quality (plastic vs metal housings), efficiency (SEER2 22 max vs 30-33), or warranty (7 years vs 10-12 years). MRCOOL saves money upfront but costs more to operate and is less reliable long-term.
R-454B is the new low-GWP (Global Warming Potential) refrigerant replacing R-410A in all new heat pumps. The EPA mandated the transition effective January 1, 2025 for new equipment manufacturing. R-454B is mildly flammable (A2L classification) but is safe when properly installed. All 2026 models are transitioning to R-454B. If you buy an R-410A unit now, it will still work fine — R-410A refrigerant will be available for service for decades.
For outdoor units, Bosch IDS 2.0 is the quietest at 56 dB — significantly below the 62-68 dB typical of most brands. For indoor units, Mitsubishi and LG both achieve 19 dB on low speed — quieter than a whisper (20 dB). Fujitsu indoor units are also excellent at 20 dB. If outdoor noise is your primary concern (units near bedrooms or neighbors), choose Bosch for ducted or Fujitsu for ductless.
Choose ductless (mini-split) if you have no existing ductwork, want zone-by-zone temperature control, or are heating specific rooms. Choose ducted if you have quality existing ductwork and want whole-home heating from a single system. Ductless is generally more efficient (SEER2 22-33 vs 15-24) because there are no duct losses (which waste 20-30% of energy). Many homes benefit from a hybrid approach: ducted system for central areas plus ductless units for additions or problem rooms.
NuWatt is a Mitsubishi Diamond Contractor (our primary brand for cold-climate ductless installations), and we also install Fujitsu, Daikin, Carrier, Bosch, Goodman, and LG. We do not install or service MRCOOL units. For New England cold climates, we recommend Mitsubishi Hyper-Heat or Fujitsu XLTH as first choices, with Bosch IDS 2.0 or Carrier Infinity for ducted applications.
NuWatt installs Mitsubishi, Fujitsu, Bosch, Daikin, Carrier, Goodman, and LG heat pumps across New England and beyond. Get a free consultation to determine the best brand and system for your home, climate, and budget. We will also help you apply for every available state rebate.
1,500+
Heat Pumps Installed
8
Brands Available
$0
Consultation Fee
6+ yrs
Installation Experience
Full breakdown of installed costs by system type and size
Side-by-side comparison of heat pumps vs gas furnaces in 2026
Which heat pumps actually work below zero in New England
Size your heat pump system and estimate costs online
Mass Save rebates up to $10,000 for heat pump installation
Efficiency Maine $1,000-$3,000/unit for heat pumps
Energize CT $250-$1,000/ton for heat pump systems
Decibel ratings and noise reduction strategies