Author Archives: Peter Hutson
Engineered Ducted Heat Pump Solutions
Fully ducted heat pump systems are becoming an acceptable complete solution for domestic home heating and ventilation design. Generally installed in higher end homes, when correctly engineered installed and commissioned these systems are… Read more
Rated Capacity and Maximum Capacity and Inverter Selection
Modern inverter heat pumps are able to vary their output according to the heating or cooling requirements at any given time. Inverter heat pumps are able to vary compressor speed,… Read more
H2 Heat Pump Ratings and Real Winter Heating Performance?
In New Zealand by legislation we are required to rate the heat output performance of domestic unitary heat pumps at an ambient temperature of 7° C. This temperature called H1… Read more
Balanced Ventilaton, Heating and Insulation Design Essentials
With domestic homes being designed to tighter fenestration rates and minimised air leakage rates as well as insulation standards increasing, the requirement for balanced mechanical ventilation as part of the design… Read more
Why Different Heat Pump Sizes for Cooling?
Cooling Load Sizing Simply sizing a heat pump for a heating load and assuming it will cope with summer cooling load conditions is no longer an acceptable practice. Geographical locations… Read more
How Noisy Is Noisy When Buying a Heat Pump?
Good question: what is noise? Noise technically is a vibration of particles transferred through a media. In our case air, but anyone who has dived or done work under water will… Read more
Heat Pumps That Don’t Stop in the Cold
Low ambient heat output performance degradation is the single largest reason for customer dissatisfaction with air-to-air heat pumps. As the outdoor ambient decreases, the ability for many brands of heat… Read more
