Operating Engine Block Heater - Miller Electric PipePro 304 Owner's Manual

5-10. Operating Engine Block Heater

Coolant Heater Specifications
Watts Volts 10%
400 120
Notes
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Do not touch hot engine
block. Engine block gets hot
near heater.
NOTICE − Do not run engine while
coolant heater is on.
1 Coolant Heater
2 Heater Plug
Use heater to maintain a constant
engine coolant temperature. See
table for heater specifications.
To turn on heater, connect heater
plug to a 120 volt ac grounded re-
ceptacle.
To turn off heater, disconnect plug.
Ref. 802 330 / 803 393
since 1930!
OM-492 Page 23