Get the most from your electric heating and hot

Get the most from your electric heating and hot
How to get the most
from your electric
heating and hot
water system
Using your electric heating system
efficiently means that you can get
the best out of the system for the
least cost. To do this you need to
know how to work the heating
controls. This leaflet will explain
how set the more commonly
found heating and hot water
How storage heaters work
Storage heaters are designed to
‘charge up’ with heat during the
night (using the cheaper rate of
electricity) and release that heat
during the following day.
Identifying your
storage heater
Auto-set control heaters
Under a small flap on the top of
the heater there are two dials.
The dial on the right will be
marked ‘auto-set’ or ‘input’. The
left dial will be marked ‘room
temperature’ ‘output’ or ‘boost’.
Combination heaters
If your heater has two wall
switches and a dial on the side it is
likely to be a combination heater.
The storage heater element of this
heater will be either the ‘auto-set’
or manual type and is identified
and controlled in the same way.
Controlling your
storage heaters
Storage heaters are
independent (not linked) and
each individual heater must
be adjusted separately to suit
your heating requirements for
each room.
The two controls on a storage
heater are the charge control
(either ‘Auto-set’ or manual)
which controls the amount of
heat put into the heater
overnight, and the output
control, which controls the
rate at which heat is released
into the room.
The charge control dial is
used first for all heater types.
Note If you live in an uninsulated
home there will not be much heat
left in the evening. You may need
other forms of heating.
Manual charge control
On this heater the right dial will be
marked ‘overnight charge’. The
left dial will be marked ‘room
temperature’ ‘boost’ or ‘output’.
Setting the ‘Auto-set’ charge
Turn the heater on at the wall
Turn the ‘Auto-set’ dial to
minimum (it will turn
smoothly and stop when
minimum is reached - do not
use force!).
Slowly turn the ‘Auto-set’ dial
clockwise listening out for a
quiet click. After you hear the
click, to turn the dial to the
next number.
Use the ‘auto-set’ dial again
over the next few days to
‘fine tune’ the heater.
Adjust the dial up or down by
1 each evening until you feel
the room is comfortably
warm in the evening and the
heater side panels are cool. It
may take a few days but once
it is done you can leave the
‘auto-set’ dial in the same
position all winter.
Setting the Manual Charge
1. Turn the heater on at the wall
2. To get the best out of these
heaters it is best to follow the
seasonal changes. Start in
the autumn, with a setting of
say 2 to 3, and gradually
increase the setting as the
winter comes on. Gradually
lower the setting as winter
turns to spring.
Charge knob setting: 4 - 6
Autumn - Spring
Charge knob setting: 2 - 3
Setting the output control
The heat output is controlled by
the dial on the left hand side of
the control panel marked ‘room
temperature’, ‘output’ or ‘boost’.
l If you are out during the
day: turn the dial anticlockwise to low at bedtime
and leave it at low until the
Leave the heater at this level
until evening when you can
turn it up. But remember to
return the dial to low at
If you have
an immersion
heater with
wall switches
Try to use the “on-peak”
switch as little as possible
because “on-peak” electricity
is much more expensive.
If you have an immersion
heater with a timer
No heating or insufficient
In the evening turn the dial
clockwise to release heat from
the heater and warm the
Return the dial to low at
If you are in during the day
or if you find that the room
gets too cold at night, choose
a setting say 3 or 4 that gives
a comfortable level of
How do you use
your immersion
One switch is
for the “offpeak” water heating during
the night and one for extra
“on-peak” water heating
during the day.
Keep the off-peak switch on
all the time. This means that
a tank of hot water will be
heated during the night time
It may have a boost which allows
you to heat extra hot water during
the expensive rate of electricity.
Try it for ? an hour to see if you
get enough water. If the boost
does not switch off automatically,
do not forget to switch it off
when you have had enough hot
Additional heaters
Use additional heaters to give you
extra warmth in any room you are
No hot water or water is
too cool
Common problems
My heater makes a noise
when the output control
dial is turned
Some output control dials will
make a ‘clanking’ noise, and/or
have a stiff feel when turned. This
is normal and is caused by the
movement of the output control
The heaters smell when
first turned on for the
This is normal - the smell should
disperse after a day or two.
Make sure that the electricity
supply to the heater is
switched on.
Check that there has not been
a power-cut during the night
leaving the heaters
Check that the input or
overnight charge control has
not been turned down too
low overnight.
Check that the output or
room temperature control has
not been left open or on full
With ‘auto-set’ control
heaters - check that there was
not any other form of heating
in the room overnight causing
the auto charge to
undercharge the heater.
Check that the electricity
supply to the immersion
heater is on.
Check that there has not been
a power-cut overnight
causing the immersion heater
to under heat the water.
Check that the hot water has
not been used up. If it has,
use the on-peak immersion
heater to heat up the water.
Check that the hot water
cylinder thermostat (where
fitted) has not been set too
low. The thermostat should
be set at 60ºC.
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