Flat-plate collector RA ST253-4

Efficiently converting solar energy into heat

Heating costs account for the largest share of energy costs. Over 80 percent of domestic energy consumption is attributable to space heating and hot water production. By incorporating solar energy, this cost block can be significantly reduced. With its 2.53 m² surface area and variable connections, it is capable of handling almost any task.

Quick navigation:

Benefits | Special features | Downloads

over 525 kWh/m² per year

The advantages of the Flat-plate collector RA ST253-4 at a glance:

Highest solar yields thanks to blue, highly selective Tinox vacuum coating
Durable thanks to hail-proof safety glass, double-walled aluminum frames, and permanently sealed cutting ring connections
Optimal space utilization thanks to horizontal and vertical installation
Use of minimal solar radiation by combining with the Oskar° stratified storage tank and/or a heat pump
A fully coordinated system when combined with other ratiotherm components

Ready Hybrid Ratiotherm Smart Energy Systems Ratiotherm

Ready Rtconnect Ratiotherm Smart Energy Systems Ratiotherm

Harnessing solar energy

It is more than just a normal solar collector and represents an important component in the overall system for utilizing the free energy source of the sun, whose potential is only partially exploited. Unlike solar systems designed purely for fair weather, our RA ST253-4 flat-plate collector captures even the smallest rays of sunshine. In combination with the Oskar° stratified storage tank or the WP Max-Air hybrid heat pump, additional heat gains are achieved even at temperatures below 35 °C. The RA ST253-4 flat-plate collector is designed as a harp collector and therefore has a very wide range of applications. Whether you have a flat, pent, or gabled roof, we can supply the right mounting materials. It can also be installed as a high-quality and attractive facade element.