
German-engineered domestic hot water heat pump delivering industry-leading COP 4.15 and up to 70% annual energy savings vs traditional electric storage. Operates in ambient -15°C to 43°C with natural R290 refrigerant.

The Viessmann Vitocal 161-A is a comprehensive solution for residential hot water needs. German-engineered, this domestic hot water heat pump delivers industry-leading performance, reliability, and sustainability — paired with a stylish design that sets it apart from traditional heat pumps.
It delivers an industry-leading COP of 4.15 (A 20/15, W 15/55ºC), and is built to perform in Australia's toughest conditions — operating in ambient temperatures from −15°C to 43°C. By efficiently drawing heat from surrounding air, it delivers up to 70% annual energy savings compared to traditional electric storage water heaters.
Built-in Wi-Fi timer and the Vitocal Home Control app give you complete control over your hot water schedule. Multiple operating modes optimise energy consumption based on your usage patterns, while the natural R290 refrigerant has an ultra-low global warming potential.
Available in 200 L and 270 L tank capacities to suit households from 2 people to large families with high hot water demand.
The Vitocal 161-A is eligible for Small-Scale Technology Certificate (STC) rebates under the Australian Renewable Energy Target. We handle the rebate paperwork as part of installation — typical savings of $1,000–$2,000 off the up-front cost.
Product photography, lifestyle shots and installation scenarios — exactly how this unit looks and lives in real homes and businesses.






A DHW heat pump uses a small refrigerant cycle to extract heat from the surrounding air and concentrate it into your hot water tank. It is typically 3–4× more energy efficient than a standard electric storage water heater.
The Vitocal 161-A delivers up to 70% annual energy savings compared to traditional electric storage water heaters. Actual savings depend on household size, hot water usage and electricity tariff.
R290 is a natural refrigerant with an ultra-low global warming potential (GWP=3) and zero ozone depletion potential (ODP=0). It is the most environmentally friendly refrigerant available in commercial heat pumps today.
Yes. The Vitocal 161-A is designed to operate in ambient temperatures from −15°C to 43°C — it covers every Australian climate zone, from alpine winters to outback summers.
The Vitocal 161-A is available in 200 L and 270 L tank capacities to suit households from 2 people up to large families with high hot water demand.
Yes. The Vitocal 161-A is eligible for Small-Scale Technology Certificate (STC) rebates under the Australian Renewable Energy Target. AHHAC handles the rebate paperwork as part of installation.
Yes. The Vitocal Home Control app is available on both iOS (App Store) and Android (Google Play) and lets you set schedules, monitor energy usage and choose between operating modes.
As part of Viessmann's commitment to quality and long-term support, the Vitocal 161-A is covered by a comprehensive 5-year parts and labour warranty.
The Viessmann Vitocal 161-A is German-engineered and manufactured by Viessmann.
Speak to us. We will assess your household size, hot water usage, available installation space and budget — then recommend the right capacity (200 L or 270 L) and quote installation including STC rebate paperwork.
Send us your floor plans and project details — we'll come back within 24 hours with a fixed-fee design and quote.