ABOUT YOUR WATER HEATER
14
SINGLE ELEMENT MODEL
This type of water heater has one heating unit
with its own thermostat, located at the base of
the water heater.
•
Continuous electricity supply
This type of connection is suited to where
the storage capacity is less than the normal
daily usage.
•
Off-Peak electricity supply
This type of connection will only allow
heating to occur during set hours. A volume
of water sufficient for the day’s total use is
heated and stored. This type of heating will
be more economical due to reduced tariffs
by the electricity authority.
TWIN ELEMENT MODEL
This type of water heater has two heating units, each with its own thermostat.
One heating unit is at the base of the water heater and the other near the top.
•
Bottom heating unit
During normal operation this heating unit
supplies all the hot water.
•
Top heating unit (Booster)
This heating unit only operates during
periods of high demand to provide an
additional supply of heated water.
•
Electrical connection
The two heating units are wired for non-
simultaneous operation, so that only one
heating unit can operate at a time. The
bottom heating unit is usually connected to
an Off-Peak (overnight) or time controlled
supply and the top heating unit to a
Continuous / Domestic
supply.
Some
electricity suppliers allow both heating units
to be metered at the Off-Peak or controlled
tariff.
NOTE: Power must be available to the top heating unit circuit at all times
for this water heater to operate as designed.
