12v Rangehood

Craig1 · Guru

12v Rangehood

Mamil · Senior Member

I added a Camec Turbo twin fan to mine, was that one of the ones you tried? It has both rear and top venting options. Can't say it's particularly powerful, but it's sure better than just opening a window which is what we did before.

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-- Edited by Mamil on Tuesday 21st of May 2019 09:13:13 PM

Roy E · Senior Member

Craig,
In my previous Jayco pop-top which I bought new in 2005, the range hood had little suction and barely worked. I dismantled it to find the air outlet on the hood did not line up with the vent in the van wall.
After a bit of modification, the outlet connected to the wall vent and the rangehood worked a little better but still pretty pathetic.
Cheers,
Roy

Craig1 · Guru

Yep, its no good as is, so only a few screws holding it in, so out it comes to check ducting. Camec one is surface mount, but still the twin fan. Thanks for input.

Kiwoz · Veteran Member

Craig,
We had similar issues with surface mount unit in Coromal. Removed and found similar Roy. Very restrictive venting but also was wired to a lighting circuit so on high there was only 10.5v for the poor thing. Rewired and opened restrictions in venting and it's a much better device.

All the best, Bruce.

Mamil · Senior Member

Kiwoz wrote:
Craig,
We had similar issues with surface mount unit in Coromal. Removed and found similar Roy. Very restrictive venting but also was wired to a lighting circuit so on high there was only 10.5v for the poor thing. Rewired and opened restrictions in venting and it's a much better device.

All the best, Bruce.

Good point, I ran a new circuit from the fusebox for mine so it would get decent voltage.

Craig1 · Guru

Got a bit sidetracked today( blessed green bin day so big prunnings), so no progress, now will check voltage as well. Thanks all again

-- Edited by Craig1 on Thursday 23rd of May 2019 09:15:32 PM

Craig1 · Guru

Removed the unit late this arvo, a fine collection of spider droppings, BUT the 50mm round ducting had been wedged right to the bottom of the 60mm x 40mm rectangular exit point,"at right angles to flow", so no hope of any suction. Looking at the design further, the mesh screen, instead of a removable filter, means half the thing needs to be dismantled to clean anyway. Will go and look at a Camec one next week I thinks. Wiring looks to be heavy duty , so that's a bonus.

-- Edited by Craig1 on Saturday 25th of May 2019 07:36:42 PM

Radar · Guru

Hi Craig 1

After reading about 12 volt rangehoods, I walked over with small piece of paper and ours would not hold it there also. That night my wife was cooking with rangehood going and I asked her thoughts on the rangehood, yes its ok, "takes the steam away along with cooking odours" so all ok for her but when I get home It will get dismantle and see if I can improve.

So paper trick may not work on to many but they are working to a point. Ralph.

Mamil · Senior Member

Tried the 1" piece of paper on mine and will hold it there on low speed as well as high. Twin fan Camec.

daffyfrancis · Senior Member

Our camec decides it needs a spell after running for about 3 minutes on high or low & slows right down to next to nothing but even without the fan going it does remove a lot of the steam etc. Has anyone any ideas on a possible fix ? it has had minimal use over its 6 years so I would not buy another.

David

Craig1 · Guru

Finally fitted the Camec twin fan one today. It was about 0.2 mm wider than NCe so a very tight fit. I had to put an extra bit of frame behind it for mounting, cut a bit of splash back out to accomodate the rear exit round vent adapator, drill new mounting holes in top of unit.Fit flyscreen to domed outside cover. Also had to stay with the flexible duct as the hole in van wall was too much offset to make a new smooth piece. I did not want to drill the van wall and patch old hole.

It works pretty well on suction test, but the outside domed cover does slow it a bit, compared to no cover. Also blew the fuse when removing the old one, forgot to turn off isolating main switch. And as no labels on fuse board, it was the last one checked , out of 6.

Total cost $224, plus a now useless bit of smooth bore duct, brought in hope. True R & R fit time for a good handy man would be 2 -3 hours I guess. Me, a lot longer.

jamesph · Member

I recommend Furrion FHO23SACR-BL, this unit is half the size of my original unit that moves air that emits a lot of smoke. this range hood is half of the original one that moves the air and gives off a lot of smoke. It is very easy to install.

-- Edited by jamesph on Friday 3rd of September 2021 07:59:29 PM

Dougwe · Chief one feather

Craig1 wrote:
Has anyone got a rear exit rangehood fitted in their van that actually sucks much?. We have NCE single fan model that will not hold a 1" square piece of paper against the grill, about 5 years old and used twice. I went to a local dealer yesterday and tried ," with their most gracious consent" ( Albury Wodonga RV World , thanks), two brands, Camec and Swift, both in new vans, twin fan, but very little suck. A smidge better than NCE. I know that I will not get anywhere near hoiushold 240v performance, but would expect something. As we have a pop top, the top exit is of no use.

Struth mate, just as well I read the date of your post as I was about to say you shouldn't have been there anyway and must have sneaked through the 'Great wall of VIC' but I won't say that now disbelief

Keep safe mate.

Craig1 · Guru

Yep, we did one corner of our 5km circle yesterday, a fairly new estate going crazy with new builds, must be 20 on the go. Some people still doing ok.

Derek Barnes · Senior Member

Our rangehood is a Finch brand and easily passed the 1" paper test.

Dick0 · Guru

My Dometic 10W 2 speed rear exhaust meets the test easily at both speeds.

PeterD · Guru

That's the style I had fitted to our van17 years ago - CK150: Dometic / Electrolux 12V Recessed Rangehood - to be able to shift air you need a large duct. Most of the rangehoods for vans only have a 44 mm duct or smaller. The Dometic ones have a 100 mm diameter duct. In addition to that, the fan is engineered to work with the duct.

They are the most effective unit on the market.

Dick0 · Guru

PeterD wrote:
That's the style I had fitted to our van17 years ago - CK150: Dometic / Electrolux 12V Recessed Rangehood - to be able to shift air you need a large duct. Most of the rangehoods for vans only have a 44 mm duct or smaller. The Dometic ones have a 100 mm diameter duct. In addition to that, the fan is engineered to work with the duct.
They are the most effective unit on the market.

Mine is the Dometic CK155 and has the same 100mm exhaust system.

Very efficient.

Peter_n_Margaret · Guru

I built ours using a boat bilge pump. It works very well, but makes too much noise, but Margaret likes it.
Another option would be to use a domestic 240V one and a small inverter to run it. Plenty of choice.
Cheers,
Peter

PeterD · Guru

Peter_n_Margaret wrote:
Another option would be to use a domestic 240V one and a small inverter to run it. Plenty of choice.

Whatever you use the ducting to the outside air has to be nearly the same as the diameter of the fan. It does not take much resistance to stall those fans. The first van I had with a hood had a fan of nearly 150 mm diameter. It blew into a void behind the up top cupboards (front kitchen.) That would have been plenty of area if there had been sufficient ventilation to the outside. The only escape for the air was a 50 mm hole with a lover vent covering most of it. I enlarged the hole and put a 200 mm square vent over the new hole and the extractor nearly worked to the capability of the fan. However, the unit was still not up to scratch as the fan diameter was too small. The next van had an equally hopeless extractor fan.

When I had the current van built, I ordered that it be fitted with the Dometic unit installed. It has a well designed centrifugal fan that sucks from the end of the 100 mm duct. It works fairly but it is still behind a good domestic unit.