National Tradewinds 40c tank warmer?

[zypr]

Hello, I was told that my 2006 National Tradewinds 40c has tank warmers as standard equipment. Is this true? If so, how do I turn them on? Is it the switch in the power cord compartment on the lower left side under the power wind switch? If this is not the tank warmer switch, what is it? It only says ON and OFF? Thank you. Any information will be greatly appreciated. zypr@comcast.net Thank you.

[tims52ford]

On my 2003 dolphin lx, the tanks are heated by one of the flexible heater lines coming off of your forced hot air system.

[tom77hmstd]

That switch is for the block heater.

[Dmreese1]

My 05 Tropical T396 also has forced air ducts from the propane heater routed to the tank bays.

Duane