MDX heat pumps: how do their ratings compare?
A typical MDX heat pump beats 66% of similar heat pumps (same size and type), which is well above average. MDX has 12 heat pump models in this list.
Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated
Overall score
66%
of similar heat pumps beaten by its typical model
Well above averageMDX has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 12 models with every rating.
- Efficiency on a 5°F dayCOP at 5°FBeats 81%
- Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 64%
- Winter-long heating efficiencyHSPF2Beats 79%
- Summer-long cooling efficiencySEER2Beats 70%
- Hot-day cooling efficiencyEER2Beats 46%
Average (50%)
Each bar: the share of similar heat pumps a typical model beats on that rating.
Want MDX’s ranks and its models inside every size class? Switch to Advanced
Rebate standards
92%
meet CEE 2025 Tier 1, the level many utility rebates use.
11 models. All brands: 57%.
92%
meet Xcel Energy Colorado’s cold-climate rebate levels.
11 models. All brands: 53%.
17%
reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.
2 models. All brands: 3%.
Top MDX cold-climate picks, by size
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?
MDX has no ductless, 3.5–4.5 tons model. Its sizes: Ducted, 2 tons, Ducted, 2.5–3 tons, Ducted, 3.5–4.5 tons.
These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.
What to do next
The advanced view has MDX’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.
Open the advanced view