These heat pump models have been crowned the 'most efficient' by owners
Briefly

HeatPumpMonitor.org has revolutionized heat pump evaluation by allowing homeowners to input efficiency data, forming a leader board that ranks models based on real-world performance.
The Viessmann Vitocal 150A and Nibe S1155 PVT, both achieving an SPF of 5.0, have emerged as the top-performing heat pumps according to homeowner data on HeatPumpMonitor.org.
The service not only aids prospective heat pump buyers in their selection but also helps existing users optimize their heating systems based on actual performance feedback.
Factors affecting a heat pump's efficiency include model type, home insulation quality, installation effectiveness, and geographic location, making user-reported data invaluable for comparison.
Read at Homebuilding & Renovating
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