12v fan on caravan

[john4703]

I’d like to fit an extractor fan in the toilet of my caravan. I’d like to use a 12 volt fan so it will work off the caravan battery rather than only working when I have a mains supply. I can buy one from a specialist caravan shop for about £180 but this one at £45 looks good and is a lot cheaper. It is from Screwfix and is a Manrose XF100LVT/SC 10w bathroom extractor fan with timer white 12v (14750)

I’ve a couple of questions.

It is 12v fed from a transformer, will it run of 12v dc from a battery?

It is IP44 rated and if I mount it on the side of the caravan will it be OK in the rain while parked or being towed?

If this one is not good any suggestions for a good one?

 

[scbk]

Have you already got a hole? Could you fit a flettner on the roof?

 

[Bodgedbuild]

I've just checked the spec sheet and the motor is 12 volts AC, unfortunately that means it won't run of a battery as a battery supplies DC voltage

 

[Bodgedbuild]

How about this? https://fans4less.co.uk/products/ex...caravans-motorhomes-marine-boat-ventilation-4

 

[john4703]

How about this? https://fans4less.co.uk/products/ex...caravans-motorhomes-marine-boat-ventilation-4

Thanks, I had tried Google but missed that one. It looks good.

 

[Bodgedbuild]

No worries. I think the SELV spec means that although splash area bathroom fans are low voltage, they also have to be AC because AC is safer if you do come into contact with it.

 

[Harry Bloomfield]

I’d like to fit an extractor fan in the toilet of my caravan. I’d like to use a 12 volt fan so it will work off the caravan battery rather than only working when I have a mains supply. I can buy one from a specialist caravan shop for about £180 but this one at £45 looks good and is a lot cheaper. It is from Screwfix and is a Manrose XF100LVT/SC 10w bathroom extractor fan with timer white 12v (14750)

That fan requires 12v ac, your battery is dc -so it will not work.

The 5" 12v dc fan, as used in desktop pc power supplies, will do what you want, if you can arrange the mounting somehow.

 

[john4703]

Have you already got a hole? Could you fit a flettner on the roof?

I am thinking of putting it in the door of the locker where the toilet cassette is. That way any nasty smells get pulled out.

 

[JohnD]

PC type 12v DC fans are available for £5 or less, and very quiet.

 

[Harry Bloomfield]

PC type 12v DC fans are available for £5 or less, and very quiet.

Or even free if taken out of a failed power supply. Lots of failed ones around, any PC repairer will have quite a pile of them.