Vaillant ecoTEC Plus 418 VU 186/6-5OVZ (H-GB) Boiler
The Vaillant ecoTEC Plus 418 VU 186/6-5OVZ (H-GB) Boiler is a compact storage tank water heater designed for efficient heating. can't tell you much about it other that it is working (I'm not technically minded!), no reserve, collection only