Bosch Greenstar ZBR16-3A Operating Instructions Manual page 37

Energy saving tips | 37
Thermostatic valves
Fully open the thermostatic valves to ensure that the desired room
temperature is reached in all cases. Allow several days for the
system to stabilize after every adjustment and only change the
setting for the heating curve or the room temperature on the
control unit after the system had stabilized on the previous
settings.
Radiant floor heating
Do not set the supply temperature higher than the maximum level
recommended by the manufacturer.
Room venting
Do not keep windows cracked for ventilation purposes as it
continuously cools down the room without significantly improving
the air quality in the room. It is better to vent fully for a short time
(with completely open windows).
Turn off the thermostats (if installed) in the room when venting.
Domestic hot water (DHW)
Always set the DHW temperature as low as possible.
A lower setting on the thermostat means a higher rate of energy
savings.
Furthermore, higher DHW temperatures result in increased
limescale deposits and thereby may impair the function of the
appliance (e.g. longer heating-up times or lower output).
Recirculation pump
If there is a DHW recirculation pump installed, use a timer
program to control its operation according to the specific
requirements (e.g. morning, afternoon, evening).
6 720 644 013 (2011/02)