Sydney's hydronic heating, cooling and hot water specialists since 1998. Hydronic heat pumps, electric and gas hydronic boilers, in-slab and screed underfloor heating, panel radiators and hydronic cooling — designed, installed and serviced from our Punchbowl showroom.
AHHAC has been installing hydronic heating in Sydney since 1998 — across heritage terraces in Surry Hills, beach-side rebuilds on the Northern Beaches, architect-designed new builds on the North Shore and renovation projects from the Inner West out to the Hills District. Our Sydney showroom is in Punchbowl NSW 2196, with same-day stock of every major component and a direct line on 1300 76 53 39.
We design every Sydney hydronic heating system around the specific home — heat-loss calculation, zone plan, energy-source matchup, and a fixed-fee quote back within 24 hours of your enquiry. Sydney's mild winters and warm summers make the city a perfect fit for reversible heat pump hydronic heating systems that deliver both winter heating and chilled-water summer cooling from a single outdoor unit.
Sydney hydronic underfloor heating is our most popular install for new builds, with in-slab pipework laid before the pour. For renovations and retrofits we specify hydronic radiators — European panels, designer towel rails and cast-iron columns sized to each room's heat-loss.
Sydney has more hydronic installers than any other Australian city — but most are renovation plumbers running side jobs. AHHAC is a dedicated hydronic specialist with our own design team, full European parts inventory and a dedicated service department. We don't subcontract.
Every Sydney install carries our workmanship warranty on top of the manufacturer cover, and we offer annual service contracts that keep the manufacturer warranty valid. We're authorised installers for Maxa, Immergas Magis, Viessmann and Sime — five manufacturer accreditations in total.
For Sydney homes pursuing all-electric or Net Zero certification, we pair hydronic heat pumps with rooftop solar PV to achieve near-zero net annual energy cost across heating, cooling and hot water. The hydronic distribution network has a 30+ year design life — only the outdoor unit needs replacement at the 12-15 year mark.
Every Sydney project starts with a heat-loss calculation and a fixed-fee design. We size each system to your building, your climate and your living patterns.
Italian-engineered Maxa and Immergas Magis hydronic heat pumps. Heating COP 3.5–5.5, R290 and R32 options. Reversible for summer cooling.
Electric hydronic boilers (Heatrae Sadia, Stiebel Eltron) for in-floor heat, plus Sime, Viessmann and Bosch condensing gas boilers. 92-98% efficiency.
In-slab and in-screed hydronic underfloor heating with PEX-A pipework. 30+ year design life, per-room thermostatic zoning, stone/tile/timber compatible.
European panel radiators, designer towel rails and cast-iron columns. Zehnder, Bisque, Stelrad, Delonghi. 15-25 min warm-up, TRV per-room control.
Chilled-water underfloor and fan-coil cooling — silent, allergen-free, paired with reversible heat pumps. Ideal for new Sydney builds.
Industrial reversible chillers and heat pumps for Sydney hotels, hospitals, schools and strata. 73–192 kW heating, hot water to 78 °C.