Rheem STELLAR 850 Series Owner's Manual And Installation Instructions page 14

ABOUT YOUR WATER HEATER
HOTTER WATER INCREASES THE RISK OF SCALD INJURY
This water heater can deliver hot water at temperatures up to 65°C depending
upon the thermostat setting, sufficiently hot to cause severe scalding. Water at
these temperatures may have been plumbed to fixtures where water hotter than
50°C is allowed, such as the kitchen and laundry.
Check the water temperature before use, such as when entering a shower or
filling a bath or basin, to ensure it is suitable for the application and will not cause
scald injury.
We recommend and it may also be required by regulations that an approved
temperature limiting device be fitted into the hot water pipe work to the bathroom
and ensuite when this water heater is installed. This will keep the water
temperature below 50°C at the bathroom and ensuite. The risk of scald injury will
be reduced and still allow hotter water to the kitchen and laundry.
TEMPERATURE ADJUSTMENT
The temperature adjusting dial is on the gas
valve, located behind the access cover on the
lower front of the water heater. A setting of '6'
will normally maintain the water temperature
at about 60°C. Each number represents a
temperature difference of approximately 6°C.
To increase the water temperature to 65°C,
turn the gas control knob anticlockwise to a
setting of '7'. Refer to "Hotter Water Increases
the Risk of Scald Injury"
on page 14.
PIEZO IGNITION
The "Piezo" push button igniter makes lighting the pilot
flame of your water heater very easy. Simply follow the
instructions on the label attached to the back of the
access cover. There is no need for matches to light the
water heater.
PILOT IGNITER
A permanent pilot flame burns to ignite the main
burner automatically. Heat from the pilot is absorbed
by the water.
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