Consider HydroAir hydronic heat pumps for heating and cooling. Choose 1-phase or 3-phase versions. They are very efficient, with negligible global warming potential, and come with excellent Australian warranties.
High Temperature
HydroAir hydronic heat pumps can heat water to 75 degrees. Therefore, choose HydroAir heat pumps for heating your radiator panels with gas boiler changeovers.
Hydronic heat pumps extract heat from the air and transfer it to the circulating water. In winter, they find sufficient heat in the outside air, even if it is below zero.
Cooling
In summer, they can cool. Hydronic cooling works best with chilled water through fan coil convectors. You can also use area cooling with cool water above the dew point with underfloor circuits. Area cooling works best when combined with ceiling fans.
Read more about hydronic cooling.
Inverter Technology
HydroAir heat pumps use inverter technology. This allows soft starting and variable compressor speed for optimal efficiency and longer life.
Natural Refrigerant
The natural R290 refrigerant propane is used. This has negligible global warming potential of just 3. Read more: heat pump refrigerants.
Thermal Battery
Run your hydronic heat pump system during the day with your solar power.
For underfloor systems, increase your set temperature in the middle of the day to coincide with your higher solar power. This will lower your cost of hydronic heating.
The extra heat will be absorbed by the thermal mass of your floor slab and home generally. It will then be released into your conditioned spaces in the evening, acting as a thermal battery.
Insulate your floor slab underneath and around the edges to reduce heat loss. Make it a more effective thermal battery especially when the outside temperature is very cold. Read more: slab insulation.
Choose a buffer tank for your heat pump system for better performance. Oversize your buffer tank for greater thermal mass. This is more beneficial if your home is lightweight or off-grid. Read more:
