Direct sunlight can generate the same amount of heat as a single bar radiator and effective shading can block up to 90% of this heat. Through effective shading you can reduce the summer temperatures in your house and in winter use that sun to generate radiant heat that will be stored in thermal mass that is later released when the sun goes down. A concrete slab is ideal for this purpose. The Australian Government’s Sun & Moon Elevation tool allows you to determine the sun angle to your location.

Our partners at Stiebel Eltron shared these images.

The service team in Switzerland was called out to inspect an Air Sourced Heat Pump that wasn't performing to capacity.

After inspection, they were able to locate (and dig out) the unit, to find that it was still running, but due to restricted airflow, was at a reduced output. 

This is what gives us the confidence to offer these units into any Australian climate. 

Heat pumps work best above 7 degrees Celsius but will work down to minus 15 degrees provided they have good air flow. This is because the refrigerant in the heat pump boils at minus 26 degrees, so minus 15 is warm in comparison, zero degrees is hot and 7 degrees is very hot.

Air tightness and blower door tests are performed to highlight air gaps and thermal bridging within the building envelope from walls, floors, roofs, doors, windows, skylights and any other openings.