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Viessmann
Made in Germany

Viessmann Vitocal 161-A

R290 Domestic Hot Water Heat Pump

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.

COP
4.15
Annual savings
Up to 70%
Ambient range
−15°C to 43°C
Refrigerant
R290 · Natural
Viessmann Vitocal 161-A
About this product

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.

Smart, sustainable, simple

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.

STC rebate eligible

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.

Key benefits

  • Industry-leading COP of 4.15
  • Up to 70% annual energy savings vs electric storage
  • Operates in extreme conditions: −15°C to 43°C ambient
  • Natural R290 refrigerant — low GWP
  • Built-in Wi-Fi + Vitocal Home Control app
  • Multiple operating modes for optimal energy use
  • 200 L and 270 L tank capacities
  • German-engineered for reliability
  • STC rebate eligible — we handle paperwork
  • 5-year parts and labour warranty
Smart-home control

Available on iOS & Android

Gallery

See it in detail.

Product photography, lifestyle shots and installation scenarios — exactly how this unit looks and lives in real homes and businesses.

Vitocal 161-A 200L and 270L models
Vitocal 161-A close-up with benefits list
Vitocal 161-A installation in a residential setting
Vitocal 161-A providing hot water for showers
Vitocal Home Control app in use
Vitocal 161-A with rebate information
Specifications

Engineered for performance.

Performance
COP (A20/15 · W15/55°C)
4.15
Annual energy savings
Up to 70%
Min ambient
−15°C
Max ambient
43°C
Tank & Capacity
Available capacities
200 L · 270 L
Function
Domestic hot water (DHW)
Configuration
Integrated heat pump + tank
Smart Control
Wi-Fi timer
Built-in
App
Vitocal Home Control
Operating modes
Multiple eco modes
Refrigerant
R290 (natural)
Country of origin
Germany
Frequently asked

Viessmann Vitocal 161-A FAQs

What is a domestic hot water (DHW) heat pump?

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.

How much can I save on my energy bills?

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.

What are the benefits of R290 refrigerant?

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.

Will this work in cold or hot Australian conditions?

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.

What capacities are available?

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.

Is it eligible for rebates?

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.

Can I control it from my phone?

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.

What is the warranty?

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.

Where is this product made?

The Viessmann Vitocal 161-A is German-engineered and manufactured by Viessmann.

How do I know if this product is right for my household?

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.

Ready when you are

Let's spec the right Viessmann Vitocal for your project.

Send us your floor plans and project details — we'll come back within 24 hours with a fixed-fee design and quote.