Thor Motor Coach 2011 Avanti, Owner'S Manual

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Draining the tanks and water lines in your motorhome is half the battle of winterization.
Complete the Storage and Winterization Checklist (page 70) to ensure protection of your
motorhome. An authorized Thor Motor Coach dealer can help you in the winterization
process for your convenience.
A water heater bypass valve system is located inside your motorhome usually behind
the water heater. When the system is closed, water is shut off to the water heater. This
will eliminate circulating an additional six to ten gallons of antifreeze through the water
heater system when winterizing the system. Be sure to remove the drain plug from the
outside of the water heater to drain the water heater tank.
When storing your motorhome for the winter (or other extreme conditions), certain
precautions need to be made to protect it until you open it up again for use. Make sure
to talk with your local dealer concerning any special requirements for storage in your
particular geographic area. The following steps are general, and your dealer can help you
choose those that are most appropriate for your needs.
Chapter 11 - Winter Use and Storage
WATER HEATER
BYPASS
Water Heater Drain Plug