Solar Space Heating System CENTER line
Compact Solar Space Heating System for Especially High Solar Fraction in Single- and Double-Family Homes
The solar space heating system CENTER line combines several advantages into a good-looking and expandable system: heating drinking water, solar space heating and power-saving operation through high-efficiency pumps.
Flexible and expandable options
- Extremely versatile through modular options, available for pressurized and pressureless tanks
- Expandable, e.g. by a second combined heating circuit, two collector fields, up to three tanks
- Compatible with all current heat generators like oil or gas fueled boilers
Especially high efficiency
- Optimal exploitation of solar energy for especially high solar fractions
- High hot water comfort
Functionally safe installation and simple operation
- Broad pre-assembly facilitates fast and flawless installation
- Simple to handle with an intelligent controller
The CENTER line system is available in various solar packages to meet individual requirements.

The thermal solar central RATIOcenter forms the compact centerpiece of both the hydronic installation and the solar control technology and delivers especially high solar fractions. RATIOcenter is also available separately.
Scope of supply
Sample package CENTER line for water heating and space heating support
- 9 solar collectors EURO L20 AR, 23,4 m² gross area
- 1 collector on-roof racking kit
- 1 buffer storage RATIO 1500, 1.500 l content
- 1 RATIOcenter DB
- 1 canister of solar fluid, 15 l DC 20
- 1 expansion vessel, 80 l
Your specialized installer will gladly help you choose the CENTER line solar heating package that’s right for you.