Fridge Fan

[Martin59]

What's the best fan to keep my motorhome dometic series RM7 fridge cool in very hot weather, also how easy would it be to fit. what to get it ready for the new season well hopeful the new season

Cheers Martin

 

[XxAnthxX]

TITAN- 12V DC IP55 Waterproof Double Rack Mount Ventilation Cooling Fan with Timer and Speed Controller- TTC-SC22 (120mm) Amazon product ASIN B07F2K5GCW


Contains everything you need including mounting hardware.....

 

[Richard n Ann]

Just buy a thermostat and 120mm computer fan.

 

[Stealaway]

How much? -- £110

Try these
2 x 90mm Nidec Computer Case Fans - plus some aluminium tile angle strip - £13.90

 

[Riverbankannie]

How to guide here for the CBE kit which seems to be £50 plus delivery on amazon
We have this kit and found it very effective.

How to fit a CBE fridge fan kit - Practical Caravan

Installing a fridge fan can boost your fridge’s cooling power, which is especially useful in hot weather. Nigel Hutson shows you how.

www.practicalcaravan.com

Or here

Best Fridge Cooling Fan Kit?

Best Fridge Cooling Fan kit? I have fitted a "Brunner" brand twin fan fridge cooling fan kit to a couple of my motorhomes over the years. But I have recently heard of several cases of their kits packing up after very little use. They are of a price, and thus I assume quality, at the bottom...

www.motorhomefun.co.uk

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[funflair]

I fitted CBE kit a few years ago and did a little write up, still going strong I believe.

Fitting CBE fridge fans

When this was discussed recently there seemed to be some interest in a thread on fitting this kit so here goes. I bought the CBE kit from the Netherlands for Euro 54.50 inc delivery, it was a lot more from UK sites and the Dometic kit is around £80. So in the kit you get two fans in a frame...

www.motorhomefun.co.uk

 

[rosalan]

or

TITAN- 12V DC IP55 Waterproof Double Rack Mount Ventilation Cooling Fan with Timer and Speed Controller- TTC-SC22 (120mm)​

---

£53.00

 

[busby]

I fitted CBE kit a few years ago and did a little write up, still going strong I believe.

Fitting CBE fridge fans

When this was discussed recently there seemed to be some interest in a thread on fitting this kit so here goes. I bought the CBE kit from the Netherlands for Euro 54.50 inc delivery, it was a lot more from UK sites and the Dometic kit is around £80. So in the kit you get two fans in a frame...

www.motorhomefun.co.uk

I got a second hand fan from computer shop for a fiver five years ago, it's still working.No thermostat,,I plug it in when it's hot and unplug it when it cools down .Works well in Spain in summer.BUSBY.

 

[Scotch mist]

Check out Lenny HB modding the gin palace
materials are £25 approx , I’ve done 2 now , best mod on my van

 

[rod_vw]

Check out Lenny HB modding the gin palace
materials are £25 approx , I’ve done 2 now , best mod on my van

View attachment 467640
View attachment 467641

These thermostats are superb, seem to be an industry standard item 12v for the camper or 240v for the hot water cylinder at home. Settings retained when not powered, simple to adjust and much more accurate than the simple bi-metal type.

I have a very similar setup helping the air circulation behind my Waeco compressor fridge which is in a rather restricted cabinet.

Also a 240v one that controls the boiler for our hot water cylinder.

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[Scotch mist]

I also have made up roof extraction unit , just a different controller , thermostat in the middle

 

[mitzimad]

I got a second hand fan from computer shop for a fiver five years ago, it's still working.No thermostat,,I plug it in when it's hot and unplug it when it cools down .Works well in Spain in summer.BUSBY.

Same as me cheap fan cable tie to the vent and a wagu connector pop the wire in when i need it toal cost a fiver

 

[DMS]

Buy the proper kit from Dometic or us £59 includes temperature switch and is designed for your fridge...

 

[LesW]

I fitted two fans and a thermal switch for around ten pounds..

 

[Richard n Ann]

Check out Lenny HB modding the gin palace
materials are £25 approx , I’ve done 2 now , best mod on my van

View attachment 467640
View attachment 467641

These controllers have a 3w power consumption. Doesn't sound much but that's 0.25 amps.. All day, every day

You're better off using a mechanical thermostat. Or making your own with solid state switching like I did

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[Dorset Diver]

Buy the proper kit from Dometic or us £59 includes temperature switch and is designed for your fridge...

DMS Do you do a Fun discount?

 

[DiggerDogs]

TITAN- 12V DC IP55 Waterproof Double Rack Mount Ventilation Cooling Fan with Timer and Speed Controller- TTC-SC22 (120mm) Amazon product ASIN B07F2K5GCW


Contains everything you need including mounting hardware.....

Yes I got this one. Works well, easy to fit and meant I didn’t need to mess around to save £20. I think the Dometic only has one fan, could be wrong though, too lazy to check

 

[Trackman]

On my boat I fitted a cooling fan I'd recovered from a dead PC's power supply. The 12V fridge has a spare spade terminal, adjacent to the power connection, that becomes live when the fridge cuts in. The fan is connected to that, so it runs when the fridge compressor does. I put in an isolator switch, as I turn it off in winter/cool weather.
On the boat, it's arranged to draw air from the bilges under the floor, as it stays cooler down there, below water level.

 

[Richard n Ann]

On my boat I fitted a cooling fan I'd recovered from a dead PC's power supply. The 12V fridge has a spare spade terminal, adjacent to the power connection, that becomes live when the fridge cuts in. The fan is connected to that, so it runs when the fridge compressor does. I put in an isolator switch, as I turn it off in winter/cool weather.
On the boat, it's arranged to draw air from the bilges under the floor, as it stays cooler down there, below water level.

Commercial fridge condenser fans come on with the compressor so that's probably what that spade connection is for

 

[Scotch mist]

These controllers have a 3w power consumption. Doesn't sound much but that's 0.25 amps.. All day, every day

You're better off using a mechanical thermostat. Or making your own with solid state switching like I did

it’s not on all day every day ,it has a switch to switch it off when not needed , it’s only on when it is very hot ( when the sun shines ) & that’s when my solars are producing way more amps than I need , the fact it’s a thermostat it’s only switching on the fans when needed , so no problem at all

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[Richard n Ann]

it’s not on all day every day ,it has a switch to switch it off when not needed , it’s only on when it is very hot ( when the sun shines ) & that’s when my solars are producing way more amps than I need , the fact it’s a thermostat it’s only switching on the fans when needed , so no problem at all

Oh I thought the idea of a thermostat was that you didn't have to do any switching yourself
Mine is on 24hrs a day and uses 0.003 amps. It comes on at night sometimes in Benidorm.

 

[Lenny HB]

Buy the proper kit from Dometic or us £59 includes temperature switch and is designed for your fridge...

No it's not, it's just a computer cooling fan & an Elmwood thermal switch you can buy the components for less than a tenner.
For 25 quid you can fit 2 decent fans and a proper temperature controller

 

[peterc10]

I fitted CBE kit a few years ago and did a little write up, still going strong I believe.

Fitting CBE fridge fans

When this was discussed recently there seemed to be some interest in a thread on fitting this kit so here goes. I bought the CBE kit from the Netherlands for Euro 54.50 inc delivery, it was a lot more from UK sites and the Dometic kit is around £80. So in the kit you get two fans in a frame...

www.motorhomefun.co.uk

Yep so did I, I think on your recommendation Martin. You showed me your installation when we met in Shrewsbury a few years ago I think.

I can thoroughly recommend the CBE unit. It has two speeds and can work automatically or manually. I just put it on auto when we are using the motorhome and the weather is warm. Works a treat and very easy to fit without any need to faff around with electronics. And, most importantly, no more warm beer.

 

[MitchandJenny]

Grat looking bit of kit !!
Wish I had seen it before I made up my own !!
Mitch.

 

[XxAnthxX]

I get the impression that some people would drive an extra 25 miles out of their way to save 1p a litre at a cheaper service station

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[ctc]

I get the impression that some people would drive an extra 25 miles out of their way to save 1p a litre at a cheaper service station

Why not? Don't support profiteers.

 

[XxAnthxX]

Why not? Don't support profiteers.

Erm.....let me think about it

 

[TR5]

You just need one fan, not on the vent grill but just above the condenser, at the hottest end. With the amount of room behind the fridges, fans on the vent just circulate air through the rear of the back of the fridge, with just a small proportion actually passing over the condenser, which is what overheats in hot climes. You need to pull (or push from below it) air circulation across the condenser, and I find one 140mm fan is plenty. I use an artic fan with it's own variable speed probe, and an illuminated switch to operate it. When on it just runs at low speed unless the heat rises above a set temp, then speeds up in stages, depending on the temp recorded.

 

[busby]

I get the impression that some people would drive an extra 25 miles out of their way to save 1p a litre at a cheaper service station

Bit of difference between 59 quid and a fiver BUSBY.

 

[Richard n Ann]

You just need one fan, not on the vent grill but just above the condenser, at the hottest end. With the amount of room behind the fridges, fans on the vent just circulate air through the rear of the back of the fridge, with just a small proportion actually passing over the condenser, which is what overheats in hot climes. You need to pull (or push from below it) air circulation across the condenser, and I find one 140mm fan is plenty. I use an artic fan with it's own variable speed probe, and an illuminated switch to operate it. When on it just runs at low speed unless the heat rises above a set temp, then speeds up in stages, depending on the temp recorded.

That's alright as long as you don't over do it. Remember the condenser is designed to be static, and the refrigeration system is driven by heat. My fans gently remove the heat and when the cool end gets to about 40°c they switch off.

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