"Golan" wrote in message
...
Hi.


i have a vaillant ecomax 613 condensing boiler with indirect cylinder.

at the moment the boiler thermostat is set to 65 deg and the cylinder
to 58 deg.

my question is it better to set up to boiler thermostat to max ? will
the boiler still work in condensing mode ?

my gas engineer told my that the boiler is very efficient so it is OK
to run the hot water 24HR a day. we take 3 baths a day 2 in the
morning and one in the evening. should i set the programmer to run the
hot water for those times or let it run all the time ? what it cheaper.

Run at the lowest temperature you can get away with. If 65 is OK for DHW and
heating then leave it. Time the DHW. The cylinder may lose heat during the
night and it is reheated unnecessarily during the night.