Page 8 Owner’s Handbook
check exhauSt SyStem
check heat exchaNger
• Make sure the exhaust pipe is fully installed and vents outside if the engine compartment.
• Check the pipe for dents, restrictions or severely corroded areas.
• Ensure exhaust pipe clamps are tight.
• Replace the exhaust pipe and clamps if necessary.
• To maintain optimum heat output, clean any combustion deposits that may have accumulated on
the heat exchanger fins.
• Remove the fan end assembly and combustion tube to access the inside of the heat exchanger.
• Ensure exhaust pipe is clean and free from restriction.
• Use a wire brush to loosen the deposits and a vacuum to remove debris.
• Torque securing screws to 25 in. lbs. (2.9 Nm).
Combustion Tube
Heat Exchanger Fins
Securing Screws
Exhaust Pipe
Caring for your PROHEAT
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