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NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
Get a Free QuoteWhich is better for your home? We install both. Here's our honest, spec-by-spec comparison based on real installation experience.
The Mitsubishi Hyper-Heat H2i wins this head-to-head comparison, taking 3 out of 4 categories. It's the stronger choice for most homeowners, especially those who prioritize extreme cold climates (operates down to -13°f). That said, the Carrier Greenspeed Intelligence is still a solid product and may be the better pick if you specifically need homeowners who want premium comfort with precise temperature control.
Mitsubishi · Hyper-Heat H2i
Carrier · Greenspeed Intelligence
| Spec | Mitsubishi | Carrier |
|---|---|---|
| HSPF2 | 12.5 | 13.0 |
| SEER2 | 20.0 | 22.0 |
| Min Operating Temp | -13°F (-25°C) | -15°F (-26°C) |
| Noise Level | 19-32 dB (indoor) | 51 dB (outdoor) |
| Size Range | 9,000 - 48,000 BTU | 24,000 - 60,000 BTU |
| Compressor Warranty | 12 years | 10 years |
| Refrigerant | R-410A | R-410A |
We evaluate each product across the metrics that matter most to homeowners.
Mitsubishi Hyper-Heat H2i offers a longer 12-year warranty vs 10 years.
Mitsubishi Hyper-Heat H2i is more affordable at $4,500 - $18,000 installed vs $6,000 - $20,000 installed.
Our crew rates the Mitsubishi Hyper-Heat H2i higher at 9.5/10 vs 9/10.
Cold-climate rated heat pumps maintain heating capacity at sub-zero temperatures, which is critical for New England winters.
Mitsubishi is the most-installed heat pump brand in our fleet. Our crews are Mitsubishi Diamond Dealers, which means extended warranty coverage for every install. The Hyper-Heat line handles New England winters better than anything else we've tested — it's the system we recommend when budget isn't the primary constraint.
The Carrier Greenspeed is the Cadillac of ducted heat pumps. Our crews install the Infinity System Control alongside it for full variable-speed optimization. The outdoor unit is remarkably quiet — homeowners with close neighbors appreciate this. It takes 1-2 days for a full ducted install including thermostat setup and system commissioning.
The Mitsubishi Hyper-Heat H2i wins this head-to-head comparison, taking 3 out of 4 categories. It's the stronger choice for most homeowners, especially those who prioritize extreme cold climates (operates down to -13°f). That said, the Carrier Greenspeed Intelligence is still a solid product and may be the better pick if you specifically need homeowners who want premium comfort with precise temperature control.
Our energy advisors can help you decide between the Mitsubishi Hyper-Heat H2i and Carrier Greenspeed Intelligence based on your specific home, budget, and energy goals.
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