That is right. I use a small muffin fan. I use the power that feeds the
thermal switch for the main fan. I connect it with a on/off switch so it
can be run even when the main fridge fan is not coming on as that will
keep the inside of the Westy cooler and the main fan will run less. The
main Westy fan blows hot air out from behind the fridge at a higher rate
than the smaller muffin fan can exhaust it. For this reason it is best
to have the exhaust fan run even when the main fan doesn't so don't
connect the exhaust fan power lead to the output of the thermal switch,
use the input side.

Mark

Rocket J Squirrel wrote:

> Mark, this sounds to be a smashing good idea. Let me see if I have it
> right.
>
> 1. Remove city water inlet from side of bus.
> 2. Remove inlet guts, leaving enough to mount fan.
> 3. Mount fan on rear of inlet.
> 4. Connect fan in parallel with existing fan on rear of reefer.
> 5. Check to make sure fan blows outward, not inward, when powered up.
> 6. Re-mount inlet. Door covers opening to fan.
>
> Prop open inlet door when desirous to exhaust hot air outside.
>
> Any particular kind of fan?
>
> --
> Mike "Rocket J Squirrel" Elliott
> 71 Type 2: the Wonderbus
> 84 Westphalia: "Mellow Yellow (The Electrical Banana)"
> KG6RCR
>
>
>
> mark drillock wrote:
>
>> I use the plastic assembly after cutting out the middle part where the
>> water hose would go. That way the door still covers the fan opening
>> until you need it open. I mount the fan to the back side of the plastic
>> part and connect the fan wires to the wires for the main fridge fan.
>>
>> To see the sheet metal hole just remove the screws holding the assembly
>> to the side of the van and pull it out.
>>
>> Mark
>>
>> Vince S wrote:
>>
>>> Mark,
>>>
>>> That is a very good idea! I never use my city water hook up as I never
>>> camp in RV park nor use campground with hookup.
>>>
>>> I have never dismentle the cover to look inside. What are the
>>> dimensions
>>> the hole on the body sheet metal? I assume it is likely more of a
>>> square
>>> shape as oppose to round.
>>>
>>>
>>>
>>
>