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REFRIGERATION HVAC MECHANIC RED SEAL LICENSE EXAM REVIEWER - wattage of duct heater
PROBLEM
(from sample questions on):
https://www.red-seal.ca/
A duct heater is supplied with 238 VAC and drawing 19.9 A. What is the heater's wattage?
Given
E = 238 VAC
I = 19.9 A
Unknown
duct heater wattage
SOLUTION
P = I x E
P = 19.9 x 238
P = 4,736 watts
*
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