Heat pumps

Viessmann Vitocal 333-G – All-in-One Ground-Source Heat Pump with Integrated Boiler (6 kW, R410A, three-phase)

The Viessmann Vitocal 333-G (6 kW) is a compact, high-efficiency ground-to-water heat pump with a built-in domestic hot water tank, offering reliable and eco-friendly heating and hot water from a single unit. Designed for small to medium-sized homes, this all-in-one solution features quiet operation, low energy consumption, and advanced inverter technology for precise heat delivery.

Integrated Hot Water Tank and Indoor Unit

The system includes a 220-liter stainless steel DHW tank, providing a complete and space-saving heating and hot water solution – ideal for modern residential spaces.

Key Features and Benefits:

✔ 6 kW Output – Perfect for energy-efficient homes with moderate demand
✔ Built-In 220 L DHW Tank – Compact solution for hot water and heating
✔ R410A Refrigerant – Proven and durable with good thermal performance
✔ Inverter Compressor – Adjusts output based on real-time heating needs
✔ Silent Operation – Ultra-quiet ground-source system suitable for indoor installation
✔ Three-Phase Power – Supports stable and reliable operation
✔ Minimal Footprint – All-in-one unit saves space and simplifies installation
✔ Compatible with Smart Controls – Integrates with ViCare and One Base

Vitocal 333-G (6 kW) offers the ideal balance of comfort, compactness, and sustainability – all in one powerful unit.

Viessmann Vitocal 333-G – All-in-One Ground-Source Heat Pump with Integrated Boiler (12 kW, R410A, three-phase)

The Viessmann Vitocal 333-G (12 kW) is a high-capacity all-in-one ground-to-water heat pump designed for medium to large residential buildings. It features a built-in 220-liter stainless steel DHW tank, providing reliable space heating and domestic hot water in one compact unit. Powered by a three-phase inverter compressor and using R410A refrigerant, it ensures efficient, quiet, and sustainable operation.

Complete Indoor System with Integrated Boiler

Combining space-saving design with premium performance, the 333-G is ideal for homes that demand powerful heating with a minimal footprint.

Key Features and Benefits:

✔ 12 kW Heating Output – Ideal for medium and larger homes
✔ Built-In 220 L DHW Tank – Seamless hot water and heating from one system
✔ R410A Refrigerant – Proven efficiency and reliability
✔ Inverter Technology – Optimizes energy use based on demand
✔ Three-Phase Power Supply – Supports consistent, high-output operation
✔ Quiet Indoor Installation – No outdoor unit required
✔ Compact, All-in-One Design – Saves valuable space
✔ Smart Home Integration – Compatible with ViCare and One Base

Vitocal 333-G (12 kW) is the perfect solution for those looking for maximum heating performance and convenience in a compact, future-proof system.

Viessmann Vitocal 300-G – Premium Ground-Source Heat Pump (6 kW, three-phase, without boiler)

The Viessmann Vitocal 300-G (6 kW) is a high-performance, premium-class ground-to-water heat pump designed for homes that demand top energy efficiency and reliability. With advanced inverter technology, a three-phase power supply, and R410A refrigerant, this system provides precise heating and extremely quiet operation throughout the year.

Delivered Without Integrated DHW Tank

This model is supplied without a built-in domestic hot water tank, making it ideal for connection to custom-designed or existing hot water systems.

Key Features and Benefits:

✔ 6 kW Output – Perfect for small to medium-sized homes
✔ Inverter-Controlled Compressor – Highly precise temperature regulation and low energy consumption
✔ Ground-Source Technology – Stable and efficient regardless of outdoor conditions
✔ R410A Refrigerant – Reliable thermal performance with low environmental impact
✔ Extremely Quiet – Noise levels below 35 dB(A) – suitable for indoor installation
✔ Three-Phase Connection – Balanced power and smooth operation
✔ Compact Design – Saves space and integrates easily indoors
✔ Ideal for Passive or Low-Energy Homes – Designed for maximum efficiency

Vitocal 300-G (6 kW) is the ideal solution for homeowners who want superior performance, silent operation, and advanced energy management from a ground-source heat pump.

Viessmann Vitocal 300-G – Premium Ground-Source Heat Pump (16 kW, three-phase, without boiler)

The Viessmann Vitocal 300-G (16 kW) is a premium ground-to-water heat pump built for high-efficiency heating in larger residential buildings. With its inverter-driven compressor, three-phase power supply, and R410A refrigerant, it offers exceptional thermal performance, silent operation, and precision control – making it ideal for homes with higher energy demands.

Without Integrated DHW Tank – Flexible for Custom Systems

Delivered without a built-in domestic hot water tank, this model offers easy integration with buffer tanks, solar thermal systems, or bespoke hot water configurations.

Key Features and Benefits:

✔ 16 kW Heating Capacity – Suited for large homes and multi-family residences
✔ Inverter Compressor – Adapts output precisely to demand for maximum efficiency
✔ Stable Ground-Source Performance – Reliable all-year heating
✔ R410A Refrigerant – Proven and energy-efficient
✔ Extremely Quiet – Ideal for indoor installation in noise-sensitive areas
✔ Three-Phase Power Supply – Consistent and robust operation
✔ Compact Indoor Unit – Saves space, requires no outdoor installation
✔ Smart Ready – Connects to ViCare and One Base smart home platforms

Vitocal 300-G (16 kW) is the perfect solution for modern buildings needing powerful, quiet, and future-proof geothermal heating.

Viessmann Vitocal 300-G – Premium Ground-Source Heat Pump (12 kW, three-phase, without boiler)

The Viessmann Vitocal 300-G (12 kW) is a premium ground-to-water heat pump designed to deliver exceptional energy efficiency, ultra-quiet operation, and precise temperature control. Featuring advanced inverter technology, a three-phase power connection, and R410A refrigerant, this system is ideal for medium to large residential buildings seeking long-term sustainability and low operating costs.

Without Built-In Boiler – Flexible System Design

This version comes without an integrated domestic hot water tank, allowing integration with custom DHW systems, buffer tanks, or solar thermal setups.

Key Features and Benefits:

✔ 12 kW Heating Capacity – Suitable for medium and large residential buildings
✔ Inverter-Driven Compressor – Accurate heat output adjustment and reduced power consumption
✔ Ground-Source Technology – Delivers stable performance all year round
✔ R410A Refrigerant – Proven, efficient, and eco-conscious
✔ Extremely Quiet – Operates below 35 dB(A), perfect for indoor installation
✔ Three-Phase Power Supply – Balanced operation and support for higher loads
✔ Compact Indoor Unit – Ideal for homes with limited outdoor space
✔ Smart Home Ready – Can be integrated into advanced energy management systems

Vitocal 300-G (12 kW) is the perfect choice for homeowners who demand maximum performance, efficiency, and whisper-quiet comfort.

Viessmann Vitocal 250-AH – The Ideal Heat Pump for Modernization Projects

The Viessmann Vitocal 250-AH is a smart, compact, and eco-conscious air-to-water heat pump, specifically designed for renovation and modernization of existing heating systems. It efficiently uses renewable ambient heat for both heating and cooling, making it a future-proof solution for upgrading older homes.

Thanks to its high flow temperature of up to 70 °C, the Vitocal 250-AH allows continued use of traditional radiators, eliminating the need for underfloor heating — a major advantage in retrofit applications.

Key Features and Benefits

✔ High Flow Temperature (up to 70 °C) – Delivers stable heating even at outdoor temperatures as low as –10 °C
✔ Natural Refrigerant R290 – Climate Protect+++ with an ultra-low GWP of just 0.02
✔ OptiPerform Technology – Ensures highly reliable and energy-efficient operation
✔ Whisper-Quiet Performance – Super Silent design for maximum acoustic comfort
✔ Top-Class Efficiency – COP up to 5.3 (EN 14511, A7/W35) for reduced energy bills
✔ Compact Footprint – 60% smaller than comparable models
✔ Built-In Energy Monitoring – Complete insight into energy consumption and operating costs
✔ ViCare Smart Control – Full remote control via app
✔ Ideal for Renovation – Seamlessly integrates with existing radiator systems

Vitocal 250-AH is the ultimate solution for modernization, offering sustainability, compactness, low noise, and intelligent control in one powerful package.

Viessmann Vitocal 250-AH – High-Temperature Heat Pump for Modernization Projects

The Viessmann Vitocal 250-AH is a compact, eco-friendly, and smart air-to-water heat pump, purpose-built for modernizing older heating systems. It delivers flow temperatures up to 70 °C, enabling the continued use of existing radiators — without the need to retrofit underfloor heating.

Utilizing natural refrigerant R290, this system ensures low environmental impact and high performance, making it the ideal choice for sustainable home upgrades.

Key Features and Benefits

✔ High Flow Temperature up to 70 °C – Delivers full heating power even at –10 °C
✔ R290 Natural Refrigerant – Climate Protect+++ with a GWP of just 0.02
✔ OptiPerform Technology – Consistently high efficiency and reliability
✔ Super Silent Design – Exceptionally quiet for maximum indoor and outdoor comfort
✔ High Seasonal Efficiency – COP up to 5.3 (EN 14511, A7/W35) for reduced energy bills
✔ Compact Installation – 60% smaller footprint compared to standard units
✔ Integrated Energy Management – Tracks energy usage and costs
✔ Smart Control via ViCare App – Full remote access and monitoring
✔ Perfect for Retrofits – Seamlessly connects to existing heating systems

Vitocal 250-AH is the perfect modernization solution — combining top-tier efficiency, ultra-quiet operation, and future-ready smart technology in one compact unit.

Viessmann Vitocal 222-S – All-in-One Air-to-Water Heat Pump for Heating and Cooling (8 kW, One Base)

The Viessmann Vitocal 222-S (8 kW) is a high-efficiency split-type air-to-water heat pump with an integrated 190-liter DHW tank, delivering heating, cooling, and hot water in a single compact indoor unit. Ideal for small to medium-sized homes, this model operates on the smart Viessmann One Base platform, ensuring seamless integration with modern energy and smart home systems. It uses R32 refrigerant for reduced environmental impact and high performance.

Key Features and Benefits

✔ 8 kW Output – Efficient year-round solution for homes with moderate heating and cooling needs
✔ Integrated 190 L DHW Tank – Heating and hot water in one sleek indoor unit
✔ R32 Refrigerant – Environmentally friendly and energy efficient
✔ Split-System Configuration – Outdoor and indoor components for flexible installation
✔ One Base Platform – Unified control and monitoring via app and smart systems
✔ Low Noise Levels – Quiet operation for indoor and outdoor comfort
✔ Smart Home Compatible – Works with ViCare, Alexa, Google Assistant
✔ Ideal for Renovations and New Builds – Supports hybrid and solar energy systems

Vitocal 222-S (8 kW) is a compact and intelligent solution that provides heating, cooling, and DHW comfort with the latest in sustainable technology.

Viessmann Vitocal 222-S – All-in-One Air-to-Water Heat Pump for Heating and Cooling (6 kW, One Base)

The Viessmann Vitocal 222-S (6 kW) is a compact and powerful split air-to-water heat pump with a built-in 190-liter hot water tank, offering efficient heating and cooling from a single unit. Ideal for small to medium-sized homes, this model runs on the intelligent Viessmann One Base platform, allowing full smart home integration and future-proof connectivity. It uses R32 refrigerant for low environmental impact and high performance.

Key Features and Benefits

✔ 6 kW Heating & Cooling Capacity – Designed for compact, energy-efficient homes
✔ Built-In 190 L DHW Tank – Domestic hot water and heating in one indoor unit
✔ R32 Refrigerant – Eco-conscious and highly efficient
✔ Split-System Design – Outdoor unit connected to compact indoor hydro unit
✔ One Base Platform – Unified smart home control and energy monitoring
✔ Quiet Operation – Minimal noise indoors and out
✔ Smart Home Ready – Compatible with ViCare, Alexa, Google Assistant
✔ Perfect for New Builds and Renovations – Supports hybrid energy systems

Vitocal 222-S (6 kW) is an excellent solution for homeowners seeking year-round comfort, compact installation, and intelligent energy use in one elegant unit.

Viessmann Vitocal 222-S – All-in-One Air-to-Water Heat Pump for Heating and Cooling (10 kW, One Base)

The Viessmann Vitocal 222-S (10 kW) is a powerful and compact split air-to-water heat pump with an integrated 190-liter DHW tank, designed to deliver efficient heating, cooling, and hot water in a single system. Ideal for modern, energy-conscious homes, it operates on the Viessmann One Base platform for smart home integration and future-proof energy management. It uses R32 refrigerant for maximum efficiency and environmental responsibility.

Key Features and Benefits

✔ 10 kW Output – Suitable for medium-sized homes with all-season climate control needs
✔ Integrated 190 L DHW Tank – Hot water and heating combined in a single indoor unit
✔ R32 Refrigerant – Eco-friendly with excellent performance
✔ Split-System Design – Indoor hydro unit + outdoor module for flexible installation
✔ One Base Platform – Smart system management and connectivity
✔ Low Noise Levels – Silent operation indoors and outdoors
✔ Smart Home Compatible – Supports ViCare, Alexa, Google Assistant
✔ Ideal for Renovations and New Builds – Works with hybrid and solar systems

Vitocal 222-S (10 kW) provides sustainable comfort, space-saving design, and smart energy control in one complete solution.

Viessmann Vitocal 222-S – All-in-One Air-to-Water Heat Pump with Integrated Boiler (16 kW, R410A, three-phase)

The Viessmann Vitocal 222-S (16 kW) is a high-capacity split air-to-water heat pump with an integrated 190-liter hot water tank, delivering heating, cooling, and domestic hot water in one compact indoor unit. Designed for larger residential properties, it uses R410A refrigerant and a three-phase power supply to provide powerful and efficient performance with quiet operation.

Key Features and Benefits

✔ 16 kW Heating and Cooling Capacity – Built for large homes with high energy demand
✔ Integrated 190 L DHW Tank – Combines hot water and space heating in one system
✔ R410A Refrigerant – Long-lasting, proven thermal performance
✔ Split-System Configuration – Indoor hydro module + outdoor unit
✔ Three-Phase Power – Stable and smooth operation under high load
✔ Low Noise Emissions – Quiet operation indoors and outdoors
✔ Smart Home Compatibility – Works with ViCare app and One Base platform
✔ Compact Design – Space-saving all-in-one solution for new and renovated homes

Vitocal 222-S (16 kW) is the perfect match for homes that require high-performance comfort with integrated DHW in a sleek, smart package.