flat collector aurotherm vfk 145 3 v hkb40 The Defro fireclay brick is

The Defro fireclay brick is a high-quality

Outdoor air connection

and ventilation ducts

Integrated control of Vaillant ventilation units recoVAIR

flat collector aurotherm vfk 145 3 v hkb40 The Defro fireclay brick isThe system described here is Eligible for funding under BEG EM (Federal Funding for Efficient Buildings Individual Measures). solar collector systems are maintained up to 30% funding at the costs for purchase and installation. Through optional bonuses Up to 70% funding possible! Find out more now in our Guide to heating subsidies about the general conditions and the application procedure. VAILLANT flat collector auroTHERM VFK 145 3 V The Vaillant 2.