Blue Mountains hydronic heating specialists since 1998. Cold-climate-spec hydronic underfloor and slab heating, European panel radiators, air-source heat pumps with frost-resilient ratings, and condensing gas hydronic boilers — installed across Katoomba, Leura, Blackheath, Mt Victoria and the Lower Mountains.
AHHAC has been installing hydronic heating in the Blue Mountains since 1998 — across heritage Federation guesthouses in Katoomba and Leura, weatherboard cottages in Blackheath, modern architect-designed builds at Wentworth Falls and Mount Victoria, plus the Lower Mountains commuter belt from Springwood to Glenbrook. Our Sydney showroom in Punchbowl is the dispatch point for all Blue Mountains crews, with a direct line on 1300 76 53 39.
The Upper Blue Mountains (Katoomba, Leura, Wentworth Falls, Blackheath, Mt Victoria) sit at 800-1100 m altitude with winter design temperatures of -4°C to -6°C — colder than central Canberra and one of the most demanding hydronic-heating climates in NSW. This makes hydronic heating the standard spec for any quality Blue Mountains build: in-slab hydronic underfloor heating for new builds, European panel radiators for the area's many heritage timber cottages.
For Upper Blue Mountains sites we specify cold-climate-rated equipment: Maxa R290 heat pumps rated for -25°C ambient operation, or the Immergas Magis Hercules Pro hybrid that switches automatically between heat pump and gas backup based on outdoor temperature. We add the alpine-spec insulation upgrade on hydronic distribution piping (25mm closed-cell) to maintain efficiency through frost weeks.
The Blue Mountains has only a handful of dedicated hydronic installers, and most are general renovation plumbers. AHHAC brings our full Sydney design-and-install crews up the mountain — same engineering rigour, same European parts inventory, same dedicated service team as our Sydney metro installs. The drive from Punchbowl to Katoomba is 90-100 minutes, and we route same-day for urgent issues.
We're authorised installers for Maxa, Immergas Magis, Viessmann and Sime. For Blue Mountains heritage timber-cottage installs (Federation guesthouses, weatherboard miners' cottages) we often specify the ThermaSkirt aluminium skirting heating — heritage-friendly, no slab work, no visible radiators.
For Blue Mountains rural and acreage sites without gas connections, we specify hydronic wood and pellet burners with back-boiler integration — warm one room visually AND drive whole-home hydronic heating. Off-grid friendly, ideal for the Mountains' lifestyle properties.
Every Blue Mountains 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 new Blue Mountains builds — the gold standard for cold-climate Australian homes. PEX-A pipework, 30+ year life, even frost-morning warmth.
European panel radiators, cast-iron columns and towel rails. Fast 15-25 min warm-up — perfect for Blue Mountains weekend houses and cold-start mornings.
Maxa R290 heat pumps rated for -25°C ambient — proven performance through Upper Mountains frost weeks. Reversible for summer cooling.
Hybrid heat pump + gas boiler — switches fuel automatically based on outdoor temp. The smartest Upper Blue Mountains hydronic spec for sustained sub-zero.
Heritage-friendly aluminium skirting hydronic heating — perfect for Federation timber cottages and heritage guesthouses. No slab work, no visible radiators.
Hydronic wood and pellet burners with back-boiler integration — for rural and acreage Blue Mountains sites without gas. Off-grid friendly, 20+ year design life.