The project is divided into 5 major work packages covering all the aspects of technology dissemination like training, test methods development, in-situ monitoring, standardisation, implementation of public policy, and systems development.

2.1. Qualitative evaluation of combisystems

Until now solar combisystems sold on the market are only partly prefabricated systems, most of them are still consisting of quite a number of components which need to be put together by the installer on the construction site. Also, several controller settings of one or more controllers (e. g. solar controller, boiler controller, space heating controller) often need to be done in a correct way to start and run a solar heating system. Therefore there is a risk to make mistakes during installation or when doing the controller settings.

This work package should help to find the key hurdles which can cause less advantageous installed solar heating systems. The learned lessons of this work package should help to improve the designs of prefabricated solar heating systems and to improve the educational activities for professionals.

Based on a selection procedure with different boundary conditions a typical distribution of different system types and products was chosen in cooperation with solar industry. At least 50 systems will be evaluated.

In parallel to the qualitative evaluation of combisystems, the manufacturer datasheets and documentation available in the different countries are collected in order to have a first technical evaluation. This technical evaluation together with the qualitative evaluation will allow preparing the first recommendations regarding the design and the installation of solar combisystems.

A first draft for the evaluation procedure has been written and will be improved during the qualitative evaluation procedure. This evaluation procedure will be available on the CombiSol website.