Change out Vokera combi for a Vaillant
April 29th, 2009
This posting is going to be a ‘before and after’ type, because some of our customers have suggested it is more useful in this format.
Secret location in West Norwood
So here we have our customer property in West Norwood; it’s a rented property with an old Vokera combination boiler in the basement.
Old boiler
The boiler has been suspended on two pieces of timber, which technically is not allowed, because wall hung boilers should be fitted to non combustible surfaces.
Boiler flue is compromised
The second problem was the boiler flue termination, which had various obstructions around it including a deep window sill, and a water butt.
And the third was the gas supply, which was around 8 metres long, in 15mm pipe, with a significant number of elbows – meaning that the existing boiler was under supplied.
The new boiler almost finished
We removed the boiler and fitted a new 18mm plywood support frame, and faced it with a fire resistant sheet. The new Vaillant ecoTEC+ 831 boiler was fitted to this.
The gas supply was renewed from the meter in a larger bore tube.
Finally the flue was repositioned away from the window and the water butt, to an adjacent wall.
Old boiler flue removed, new one relocated
The old flue aperture was neatly bricked up.
A Vaillant Variable Termination Kit (VTK) was fitted to the flue, as the nearby property boundary was under 2 metres away. This product lifts the flue outlet higher, and allows the plume (steam) to be directed away.
The system was powerflushed to remove contaminants from the radiators, Honeywell VT200 thermostatic valves were fitted where necessary, and the control system upgraded to feature the Honeywell CM907 programmable wall thermostat/timer.
This system will be covered by our Vaillant 5 year warranty scheme, until 2014.
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