veissman

Can anyone help? We installed a brand new Veissman Vitodens 111 and underfloor heating system (Ambiente Manifold, Grundfos ump3 auto pump, and Heatmiser Controls) 18 months ago. We've had no issues at the tail end of winter 2022 and all of winter 2023; but when things switched on this week its...

We had a vitoodens 200 fitted around 6 years ago. 2 heating zones - one ufh/ one rads - external thermostat - therm rad valves. We have big South facing windows. Since fitting rads are on when they shouldn't be according to our setting. Initially tried plumber, veissman advisors, ongoing...