The Catalog · MrCool Universal
MrCool Universal Series.
Central Heat Pump Replacement.
The MrCool Universal series is a central ducted heat pump that bolts onto your existing ductwork and air handler — designed as a drop-in replacement for traditional AC + furnace systems. Inverter-driven, variable-speed, R-454B refrigerant, and engineered to work with virtually any existing thermostat. If you have a ducted home and want to switch from gas/oil to a heat pump (or replace an aging central AC), Universal is the path.
In Stock · Ships to All 50 States
MrCool Universal — In Stock
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Buying Guide
Why MrCool Universal?
For: homes with existing ductwork, central HVAC replacement, contractors.
1. Drop-in replacement for central
Drop-in replacement for central AC + furnace
2. Variable-speed inverter compressor
Variable-speed inverter compressor
3. Works with most existing
Works with most existing thermostats
4. R-454B refrigerant (5th Generation)
R-454B refrigerant (5th Generation)
5. Up to 18 SEER2
Up to 18 SEER2 / 9.5 HSPF2
6. 10-year parts, 10-year compressor
10-year parts, 10-year compressor warranty (registered)
Frequently Asked
Common questions
Will Universal work with my existing ductwork?+
Yes — Universal is engineered to bolt onto standard residential ductwork and air handlers. Confirm your duct sizing supports the BTU rating (typically 1 sq ft of return per 400 CFM). Existing thermostats that support heat pump mode usually work; check the Universal install manual for thermostat compatibility.
Universal vs traditional ducted heat pump — what's the difference?+
Universal uses inverter-driven variable-speed compression (vs single or two-stage on traditional units), which delivers 20-30% better efficiency at part load and quieter operation. R-454B refrigerant has lower environmental impact and qualifies for stronger rebates. The 10-year warranty is industry-leading.
Do I need a contractor to install Universal?+
Yes — Universal is not a DIY product. Installation involves refrigerant line brazing, vacuum evacuation, and proper electrical work for a 240V system. Use a licensed HVAC contractor.