Canberra and ACT hydronic heating specialists since 1998. Hydronic underfloor and slab heating, European panel radiators, air-source and geothermal heat pumps, condensing gas and electric hydronic boilers — engineered for the ACT's cold winters and serviced from our Sydney showroom.
AHHAC has been installing hydronic heating in Canberra and the ACT since 1998 — across Capital Hill ministerial residences, Inner South Federation cottages, Gungahlin new builds, Tuggeranong family renovations and Snowy-region holiday homes. We service Canberra weekly from our Sydney showroom with full crew transport and on-site parts stock, plus a direct line on 1300 76 53 39.
Canberra has the coldest winters of any Australian capital — design temperatures regularly hit -5°C in July, with frequent overnight frosts. This makes Canberra the strongest residential hydronic heating market in Australia per capita. Almost every new build in Canberra specifies hydronic from day one: in-slab hydronic underfloor heating for new builds, European panel radiators for renovations.
For ACT homes the most common spec is a hybrid system — an air-source heat pump hydronic system for the bulk of the year, with a condensing gas hydronic boiler backup for the coldest Canberra mornings when heat-pump COP drops below economic. The Immergas Magis Hercules Pro hybrid automates the switching based on outdoor temperature.
Canberra has more hydronic installers per capita than any other Australian city, but most are small renovation plumbers running side jobs. AHHAC brings dedicated Sydney design-and-install crews to the ACT each week — same engineering rigour, same European parts inventory, same dedicated service team as our Sydney metro installs.
We're authorised installers for Maxa, Immergas Magis, Viessmann and Sime. For Canberra's Snowy-region clients (Jindabyne, Thredbo, Perisher chalets), we specify Maxa's R290 monoblock heat pumps rated for -25°C ambient — the only commercially-available R290 unit certified for Australian alpine conditions.
Every Canberra install includes a Snowy-grade insulation upgrade on the hydronic distribution piping — 25mm closed-cell insulation on flow and return lines (vs the 13mm standard for Sydney) to maintain efficiency through sustained sub-zero overnight temperatures. AHHAC's design team factors Canberra's altitude (~600 m) into heat-loss calculations.
Every Canberra 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.
In-slab hydronic for Canberra new builds — the gold standard for ACT homes. PEX-A pipework, 30+ year design life, even temperature through frost months.
European panel radiators, towel rails and column radiators. Fast 15-25 min warm-up — ideal for Canberra's morning peak demand. Zehnder, Bisque, Stelrad.
Maxa R290 heat pumps rated for -25°C ambient — the only R290 monoblock certified for Australian alpine conditions. Perfect for Canberra and Snowy Region.
Hybrid heat pump + gas boiler that switches fuel automatically based on outdoor temp — Canberra's smartest cold-climate hydronic spec.
Italian-engineered low-temperature wall-hung gas boiler. 28.1 kW, 93.7% efficiency, NOx Class 5. AS-NZS 4552 certified. Reece-distributed.
Hydronic wood and pellet burners with back-boiler integration — Canberra rural and Snowy-region acreage. Off-grid friendly. 20+ year design life.