All-electric, refrigerant-cycle heat pumps that extract energy from the outside air and deliver it to your hydronic network at 4× the efficiency of direct electric heating. Operates reliably down to −20°C ambient.
All hydronic systems require a power source, and air-source heat pumps have become the most popular choice — for both their greater energy efficiency and their lower long-term operating costs.
These systems rely on outdoor air to heat (and optionally cool) the property. Outdoor air is supplied via flexible hoses and a quiet fan, which feeds a heat exchanger. The exchanger extracts latent thermal energy from the air and converts it into usable heat for your home — even when outside temperatures are as low as –20°C, with no need for an auxiliary backup heater.
Modern air-source heat pumps achieve a Coefficient of Performance (COP) of 3.5–4.5, meaning every 1 kW of electricity becomes 3.5–4.5 kW of heat. Pair with rooftop solar PV and the running cost approaches zero.
AHHAC is an authorised supplier of Maxa heat pumps — Italian-engineered, Australian-tested units rated for AU conditions. The Maxa range covers 6 kW to 60+ kW, suitable for everything from compact townhouses to apartment buildings and small commercial sites.
We also install Stiebel Eltron WPL series, Mitsubishi Ecodan, Daikin Altherma, Bosch Compress and Panasonic Aquarea where the application calls for those brands.
Designed for outdoor installation in Australian conditions. A cost-effective transition to renewable hydronic energy for new builds and retrofits.
Compact small-footprint unit for space-constrained installs. Ideal for high-performing houses with modest heating needs. Compatible with underfloor and radiators (flow temps up to 65°C). Inverter technology, smart-grid compatible.
Indoor installation design for homes where outdoor space is limited. Modulating fan control for very quiet operation. Reaches 65°C flow temperatures, smart-grid ready, solar PV-compatible.
Commercial / multi-residential apartment-building option. Operates efficiently at –20°C, achieves 60°C flow temperatures, suitable for modernising older buildings. Multiple units combine for outputs up to 186 kW. Requires 3-phase power.
Italian R290 monoblock heat pump. Heating, cooling, hot water and chilled water from one unit. Heating COP 4.94. 7-year domestic warranty.
11 chassis sizes from 6.1 to 17.9 kW heating. R32 refrigerant, COP 4.9. Made in Italy, VIPAC certified for Australia.
Yes — modern air-source heat pumps work down to -15°C ambient (some Maxa models). Efficiency drops in extreme cold, but they continue to deliver heat reliably across all Australian climate zones, including the Snowy Mountains.
COP (Coefficient of Performance) measures how many kW of heat you get per kW of electricity. Modern air-source heat pumps run COP 3.5–4.5 — meaning every dollar of electricity becomes 3.5–4.5 dollars of heat. That makes them 4× more efficient than direct electric heating.
We're an authorised Maxa supplier — Italian-engineered, Australian-tested heat pumps with R290 (i-290) and R32 (i-32V5) refrigerant options. Comprehensive 7-year domestic warranty and outputs from 6 kW to 27 kW for everything from townhouses to commercial buildings.