Hydronic systems
Heating, cooling and hot water
Air-to-water equipment can support hydronic heating, hydronic cooling and larger hot water loads when selected correctly.
Hydronic heat pumps
Hydronic Heating Heat Pumps
Air-to-water heat pumps for Sydney and NSW hydronic heating projects, including underfloor heating, radiators, cooling and larger hot water requirements.
Air-to-water hydronic sources
Heating, cooling and hot water applications
Low and high temperature planning
Integrated hydronic system design
Hydronic heat source selection
The heat pump must match the hydronic system it serves.
Air-to-water units can serve heating, cooling, large domestic hot water loads and commercial hot water systems.
Selection must be connected to the emitters, water temperature, power supply, buffers, storage and controls in the hydronic system.
Hydronic heat source
Air-to-water sources selected for hydronic heating, cooling and hot water loads.
Hydronic heat sources need to be selected around water temperature, climate, heat load and whether the system also serves domestic or commercial hot water.
Low temperature
Cold-climate operating ranges
Low temperature ranges can support operation in colder areas when selected for the required duty.
High temperature
Commercial hot water options
Higher temperature units can be considered when commercial hot water temperatures are required.
System design
Matched to emitters and storage
Underfloor heating, radiators, buffers and storage tanks all affect heat pump selection.
Selection process
Selected as part of the full hydronic design.
Selection starts with the system load and water temperature, then checks capacity, climate, power and hydraulic integration.
- 01
Confirm heat loads
Review room loads, domestic hot water loads and any commercial hot water requirement.
- 02
Set water temperatures
Match flow temperatures to underfloor heating, radiators, cooling or hot water storage.
- 03
Check power and plant
Confirm single or three-phase supply, outdoor unit location, buffers and storage tanks.
- 04
Integrate controls
Coordinate thermostats, manifolds, valves, buffers and hot water priority controls.
Technical planning
Water temperature and load drive the final selection.
The unit cannot be selected in isolation. The hydronic emitters, storage and controls determine the operating conditions.
- Flow temperature
- Lower temperature emitters can improve heat pump efficiency.
- Climate range
- Outdoor conditions affect capacity and defrost performance.
- Storage
- Buffer tanks and hot water storage may be required depending on load and controls.
- Power supply
- Larger capacity or high-temperature units may require three-phase power.
Suitable projects
Where hydronic heat pumps fit.
- Hydronic underfloor heating systems
- Hydronic radiators and towel rails
- Hydronic heating and cooling systems
- Large domestic hot water demands
- Commercial hot water requirements
- Projects moving away from gas boilers
FAQ
Common hydronic heating heat pumps questions.
Can heat pumps run hydronic underfloor heating?
Yes. Hydronic underfloor heating can pair well with air-to-water equipment when the system is designed around suitable water temperatures and controls.
Can a heat pump also provide domestic hot water?
Some systems can also heat domestic or commercial hot water. Check storage, required temperatures and priority controls before selection.
What capacity range is available?
Capacity ranges can include smaller single-phase hydronic units as well as larger three-phase and high-temperature units for bigger loads.
What should be provided for selection?
Heat loads, emitter type, required flow temperature, climate, power supply, storage requirements and drawings are all useful.
Projects
Projects using hydronic heating heat pumps
A 12kW inverter heat pump installed to provide an efficient heat source for residential hydronic heating in Mosman.
Mosman, Lower North Shore, NSW
12kW Inverter Hydronic Heat Pump – Mosman
Heat Pump Installation - Residential Models
A 15kW R290 heat pump and 100L buffer tank installed to support residential hydronic heating in Kiama Heights.
Kiama Heights, Illawarra, NSW
15kW R290 Hydronic Heat Pump – Kiama Heights
Heat Pump Installation - Residential Models
A 26kW inverter heat pump and buffer tank installed to support residential hydronic heating in Guildford.
Guildford, Western Sydney, NSW
26kW Inverter Hydronic Heat Pump – Guildford
Heat Pump Installation - Residential Models
Match the source
Need a heat pump for a hydronic heating system?
Share the hydronic design, heat loads, target water temperatures and plant space so the heat source can be matched properly.
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Design, Supply & Installation