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Standard
AI-powered smart comfort from America's newest heat pump brand
The KEEN Multizone Ductless is the flagship product from ConnectM's KEEN brand, launched in late 2025. It pairs AI-driven indoor units with a multi-zone outdoor condenser using next-gen R-454B refrigerant. Backed by industry-leading 10-year parts and labor warranties, KEEN targets the retrofit market with smart monitoring and predictive maintenance built in.
HSPF2
10.5
SEER2
18
Min Temp
-15°F
Noise
54 dB
Configuration
standard
HSPF2 (Heating Efficiency)
10.5
Very Good — federal minimum is 7.5 HSPF2
SEER2 (Cooling Efficiency)
18
Excellent — federal minimum is 14.3 SEER2
Min Operating Temperature
-15°F
Operating limit only; verify matched-system capacity at the local design temperature.
Noise Level
54 dB
Catalog sound value; check mode, distance and measurement basis before comparing models.
Compressor Warranty
7 Years
Catalog parts term: 5 years. Registration deadlines and coverage conditions vary; see the exact certificate.
Project Pricing
Calculated for your home
Address, system type, tonnage, zones, and installation scope determine the range
Catalog planning comparison of heating capacity, cooling capacity and COP. Verify each value against the exact manufacturer match before equipment selection.
| Size | Heating @ 47°F | Heating @ 17°F | Heating @ 5°F | Heating @ -5°F | Cooling @ 95°F | COP @ 47°F | COP @ 17°F | COP @ 5°F | COP @ -5°F |
|---|---|---|---|---|---|---|---|---|---|
| 1.5 Ton | 6,000 BTU/h | 4,200 BTU/h | 3,000 BTU/h | 2,100 BTU/h | 6,000 BTU/h | 3.5 | 2.3 | 1.7 | 1.2 |
| 2.25 Ton | 9,000 BTU/h | 6,300 BTU/h | 4,500 BTU/h | 3,150 BTU/h | 9,000 BTU/h | 3.5 | 2.3 | 1.7 | 1.2 |
| 3 Ton | 12,000 BTU/h | 8,400 BTU/h | 6,000 BTU/h | 4,200 BTU/h | 12,000 BTU/h | 3.5 | 2.3 | 1.7 | 1.2 |
| 3 Ton | 36,000 BTU/h | 25,200 BTU/h | 18,000 BTU/h | 12,600 BTU/h | 36,000 BTU/h | 3.4 | 2.2 | 1.6 | 1.1 |
Product-family catalog values are not an AHRI certificate or a site design. Final equipment selection requires current matched-system documentation.
Our installer-grounded read on the KEEN Multizone Ductless, computed from how its specs compare against the rest of the equipment NuWatt installs.
The KEEN Multizone Ductless is a mainstream-tier heat pump in the lineup NuWatt installs — a balanced pick when budget matters but you still want a real warranty and proven hardware. Its SEER2 of 18 is roughly in line with the median (19) of the products NuWatt installs. The catalog lists operation down to -15°F. Minimum operating temperature alone does not establish cold-climate certification or eliminate backup heat: match the exact indoor/outdoor equipment's heating capacity at the local design temperature to the home's calculated heat loss.
Selection method: DOE Building America cold-climate sizing guidance. Confirm the exact matched equipment and design heat loss before deciding on backup heat.
The 7-year compressor warranty is short relative to the 10–12 year industry standard. The compressor is the most expensive part to replace mid-life, so a shorter warranty means more out-of-pocket exposure if something fails after year 7.
SEER2
-1.0
vs catalog median
HSPF2
-0.5
vs catalog median
Min temp
-5°F
vs catalog median
Compressor warranty
-3yr
vs catalog median
How this unit handles New England's coldest days
Rated Operating Minimum
-15°F
Operating limit—not proof of whole-home capacity at that temperature
COP at -5°F
1.2
Produces 120% of input energy as heat even at -5°F
Capacity Retention at -5°F
35%
Percentage of rated 47°F capacity maintained at -5°F
47°F
100%
6,000 BTU/h
17°F
70%
4,200 BTU/h
5°F
50%
3,000 BTU/h
-5°F
35%
2,100 BTU/h
Rebate amounts vary by equipment and income. See what you qualify for.
Check My Eligibility“KEEN systems use standard ductless installation with R-454B refrigerant, which requires A2L-certified handling. The AI monitoring module connects to the homeowner's Wi-Fi during commissioning. Indoor units are lightweight and low-profile. Typical install: 1 day for single-zone, 1–2 days for multi-zone.”
— NuWatt Energy Install Team
A heat pump increases your electricity usage by 3,000–6,000 kWh per year. Offset that cost with solar panels and power your heating with free sunshine. NuWatt designs integrated solar + heat pump systems for maximum savings.
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Installed cost depends on the exact tonnage, number of indoor and outdoor units, ductwork, electrical work, access, and local incentives. Use NuWatt's address-based heat-pump calculator for a preliminary project range; a site visit is required before a firm quote.
The catalog shows 1.5 to 3 ton options. Do not choose tonnage from floor area alone: use room-by-room Manual J loads, the local design temperature, duct airflow and the exact matched system's heating and cooling capacity. Ask for the sizing calculation and AHRI match with the proposal.
The catalog lists operation down to -15°F. Confirm low-temperature capacity and efficiency for the exact matched system, then compare its output with the home's design heat loss. COP is heat output divided by electrical input, not a percentage saving on your bill. A minimum operating temperature alone does not establish that the system can heat the whole home without supplemental heat.
Our catalog lists 7-year compressor and 5-year parts terms. Verify the current manufacturer's certificate for the exact model, registration deadline, location, ownership transfer and maintenance conditions. Parts coverage is not automatically installation-labor coverage; request both terms in writing.
Our catalog lists 10.5 HSPF2 for heating and 18 SEER2 for cooling. These are seasonal ratings, not a guaranteed percentage reduction in your bill. Verify the exact AHRI-rated indoor/outdoor combination and applicable equipment category. Compare low-temperature capacity, the local climate, controls, duct losses and the actual electricity and replacement-fuel rates before estimating operating cost.
Our catalog lists an outdoor sound rating of 54 dB. Compare the exact model's manufacturer sound data using the same operating speed, measurement distance and sound-power or sound-pressure basis. Placement, reflections and nighttime operation affect what you hear; a catalog number alone cannot establish which system will be quietest at your home.
