Homeowners Professionals
Vitobloc 200

Type EM-20/39

Combined heat and power unit for natural gas and LPG operation

Electrical output: 20 kW
Thermal output: 39 kW
Smooth running 4-cylinder 4-stroke gas engine
Economical power and heat generation
Electrical output

20 kW

Thermal output

39 kW

Smooth running 4-cylinder 4-stroke gas engine

Operation with bio natural gas possible

Economical generation of power and heat

For self-consumption

Completely ready-to-connect

And factory-tested

Maintenance interval

6000 hours run without oil top-up

Proven remote monitoring systems

Via web browser

Energy efficiency class


Vitobloc 200 type EM-20/39 –– condensing technology built in

Established technology

Vitobloc 200 combined heat and power units (CHP) from Viessmann are ready to use systems. One standard frame holds the engine, generator, sound insulated casing and control unit.

CHP units are ideal when heat is needed continuously and power generation can run for as long as possible. These conditions apply, for example, in hotels, residential developments of 30 to 50 units, holiday complexes, swimming pools and shopping centres as well as in industrial, trade and commercial premises.

The Vitobloc  200  EM-20/39 CHP units have outputs of 20  kWel and 39  kWth. With integral condensing technology, up to 95 percent of the fuel employed is utilised. With more than 2500 Vitobloc 200 units installed, you have proven technology you can rely on.

Highly economical through long maintenance intervals

Longer maintenance intervals, thanks to the integral lubricating oil supply, reduce running costs and downtimes. Completely ready-to-connect, factory-tested units for minimum installation effort and verified output values.

By way of comparison: for a car, a maintenance interval of 6000 hours would mean that the engine only needs to be serviced after it has covered 360,000  km.

The CHP Quality Assurance

The CHP Quality Assurance programme (CHPQA) is a government initiative providing a practical, determinate method for assessing all types and sizes of Combined Heat and Power (CHP) schemes throughout the UK. CHP, the simultaneous generation of heat and power in a single process, provides one of the most cost-effective approaches for making carbon savings and plays a crucial role in the UK Climate Change programme.

CHPQA aims to monitor, assess and improve the quality of UK Combined


Product details



Electrical output

20  kW

Thermal output

39  kW

How can we help?