Ground Source Heat Pump
Viessmann Vitacol 222-G
The Viessmann Vitocal 222-G is a compact ground source heat pump with an integrated 220-litre cylinder, engineered for efficient heating with minimal installation complexity. It delivers reliable performance across a wide range of domestic properties with excellent quiet operation.
Available in outputs from 6kW to 10kW across single phase configurations, the Vitocal 222-G maintains strong performance at both low and higher flow temperatures, making it well-suited to existing radiator systems in retrofit installations. The integrated storage cylinder reduces space requirements and simplifies installation compared to separate tank systems.
Key Features
Why the Vitocal 222-G
Flow Temperatures up to 65°C
With flow temperatures reaching 65°C, the Vitocal 222-G works excellently in new build properties and is ideal for retrofit installations with existing radiator systems.
5-Year Warranty
When purchased through Alto Energy, the Viessmann Vitocal 222-G comes with a 5-year warranty as standard.
Boiler Upgrade Scheme Eligible
The Vitocal 222-G is approved for the Boiler Upgrade Scheme, qualifying customers for up to £7,500 off the cost and installation of their heat pump.
Compact Design & Easy Installation
Small footprint with integrated brine circulation pump, heating circuit pump and 3-way diverter valve makes installation simple and quick.
Quiet Operation
Sound power level of just 40 dB(A) with advanced sound insulation and anti-vibration mounts.
Integral 220L DHW Cylinder
Fully integrated 220-litre DHW cylinder with compact footprint and high hot water performance.
Product Range
All Units & Configurations
Vitocal 222-G
Further Reading
Installer Resources
Alto Assured
Become a trusted Alto Assured Installer. It’s a commitment to quality, compliance, and long-term support.
Future Homes Standard
Learn more about the Future Homes Standard and how it will impact Specifying the Compress 2000 for FHS-compliant new build schemes.
Viessmann Servicing
Manufacturer servicing information and support for all models.
Boiler Upgrade Scheme Guide
How the BUS grant works and how Alto makes it straightforward.
Contact Us
Get in touch with the Alto team for support and enquiries.