Heat Duct Routing 310RL

[Meanjean73]

I know where all my heat ducts go with the exception of one small duct. Heads to the back, goes down the frame rail on the driver side.

My thought was it heads to the back and keeps the water tank from freezing?

I see the ducts going to the kitchen island(2), bathroom, bedroom. Just can’t figure out what the last small one is going.

 

[BryanValRox]

I know where all my heat ducts go with the exception of one small duct. Heads to the back, goes down the frame rail on the driver side.

My thought was it heads to the back and keeps the water tank from freezing?

I see the ducts going to the kitchen island(2), bathroom, bedroom. Just can’t figure out what the last small one is going.

You are correct, it provides heat to the underbelly to help prevent tank freezing.

 

[Oregon_Camper]

You are correct, it provides heat to the underbelly to help prevent tank freezing.

...in addition to the 12v tank heaters.