We Know Hydronic Heating
Hydronix can replace your gas boiler with an efficient air-to-water heat pump, using your existing radiators or underfloor heating where they are suitable. Every home is different. We check the system first, explain what needs to change and give you a clear quote before installation.
A typical installation costs $10,000–$15,000. Your final price depends on system size and any changes needed to radiators, controls, pipework or electrical supply.
Many gas hydronic systems can be converted, but a heat pump needs to be matched to the house and the way it distributes heat. Underfloor heating is often a good fit. Existing radiators may also work, though some homes need larger panels to stay warm at the heat pump's most efficient water temperature.
We look at your home's heating needs, current boiler and radiators, pipework, controls and electrical supply. If a repair or a different upgrade makes more sense, we'll tell you.
Your installation is designed around your home. Depending on the existing system, the work can include:
We work with Stiebel Eltron, HydroAir, Baxi and other manufacturers. We recommend equipment based on your home’s heating needs, available space and the performance you expect in winter.
Often, yes. We check whether each room's radiator can produce enough heat with the new system. If a few are too small, we'll include those changes in the quote.
It will when the heat pump and the rest of the system are sized for the home's winter heating needs. We check that before recommending a model.
Standard hydronic radiators are designed for heating. Cooling needs suitable equipment and controls, so we'll discuss it separately if it matters to you.
There is no general requirement for existing Victorian owner-occupiers to replace gas space heating in 2027. The announced owner-occupier replacement rule concerns gas hot-water appliances that cannot be repaired.
A heat-pump can use substantially less energy than direct electric heating and may reduce your running costs compared with a gas boiler. The result depends on insulation, radiator temperatures, energy tariffs, heating hours and solar generation.
With practical experience converting existing gas boiler systems to electric heat pumps..
Based on your home’s heating needs, existing pipework, radiators and controls.
With careful assessment to identify which parts of your system need upgrading.
Alongside manufacturer warranties and ongoing servicing and support from Hydronix.
The Victorian Government is developing a VEU discount specifically for replacing gas hydronic space heating with a heat-pump system. As of September 2026, it is not yet available; implementation is proposed for the second quarter of 2027, subject to final rules. Current rebates for heat-pump hot water and reverse-cycle air conditioning do not automatically apply to a hydronic conversion. We’ll check the rules in force when we quote.
Related services
Hydronic Heating Repairs · Boiler Servicing · Radiator & Leak Repairs · Gas Boiler Upgrades
If you’re considering replacing your gas hydronic boiler with an electric heat pump, we’re happy to help. We’ll assess your existing system, explain your options and provide clear advice on suitability and installation costs.
Call Hydronix today or send us an enquiry to discuss a heat-pump conversion for your home.