Water Systems said:2 x installtion costs,
One installation cost, as both in one house. Fitting two side by side takes no time at all.
As anyone who has installed boilers knows, fitting two boilers is almost twice as much work ! Then there is the control and sequencing system!
Water Systems, who retired some while ago, has never installed a domestic boiler in his life so how would he know? Just as well really as he was not CORGI registered !
Also Viessmann use independent Service Agents, not staff engineers.
Tony