NG Trade vs WILLIS: heat pump ratings compared
Against heat pumps of the same size and type, a typical NG Trade model beats 55% and a typical WILLIS model 51%. NG Trade rates slightly higher overall.
Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated
NG Trade
55%
of similar heat pumps beaten by its typical model
About average15 models listed
WILLIS
51%
of similar heat pumps beaten by its typical model
About average15 models listed
- Efficiency on a 5°F dayCOP at 5°FNG Trade: Beats 48%WILLIS: Beats 39%
- Heating power kept at 5°FCapacity at 5°F vs 47°FNG Trade: Beats 39%WILLIS: Beats 64%
- Winter-long heating efficiencyHSPF2NG Trade: Beats 59%WILLIS: Beats 52%
- Summer-long cooling efficiencySEER2NG Trade: Beats 67%WILLIS: Beats 55%
- Hot-day cooling efficiencyEER2NG Trade: Beats 55%WILLIS: Beats 46%
Average (50%)Dashed outline: the other brand, for comparison
Want ranks, distributions per size class and cold-weather curves? Switch to Advanced
Rebate standards
CEE 2025
- NG Trade
- 80%
- WILLIS
- 87%
Xcel CC
- NG Trade
- 47%
- WILLIS
- 87%
CEE Advanced
- NG Trade
- 0%
- WILLIS
- 0%
ENERGY STAR CC
- NG Trade
- 33%
- WILLIS
- 73%
Top cold-climate picks, ductless 3.5–4.5 tons
Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.
Showing Ductless, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?
NG Trade
None of NG Trade’s ductless, 3.5–4.5 tons models qualifies.
WILLIS
No ductless, 3.5–4.5 tons model from WILLIS.
These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.
Next steps
The advanced view adds ranks, both brands’ models inside every size class, standout models per rating and cold-weather curves.
Open the advanced view