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Post by Deleted on Feb 19, 2018 7:31:03 GMT
I am planning to fit a Refleks 66 (small one) diesel heater into one of my boats. The idea is for it to be continually burning but I know that there is a small risk of it going out amd fuel continuing to feed into it.mm bad. Conversely they can flood leading to over fuelling. So what I want to do is put a solenoid valve in the fuel feed (8mm copper) with temperature sensor on the flue activating a relay if the flue gets either too hot (flooded) or too cold (flame loss). It's gravity feed so no fuel pump to switch. Question is would a 1/4" brass solenoid valve be big enough? The 66m uses very little fuel. This valve has a 2.5mm aperture Look at this on eBay www.ebay.co.uk/itm/322897585939That's a normally closed (power to open) maybe it would be better to have a normally open an use power to close it. Slightly less safe but at least it wouldn't be using power under normal operation Normally open type Look at this on eBay www.ebay.co.uk/itm/172482902619 |
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Post by phil70 on Feb 19, 2018 8:18:04 GMT
My recollection is that the fuel valve will cut off the fuel if it floods so saving the grief of fuel spilling out in the event of there being a flame out.
And by the same token I don't believe it's possible for the fuel valve to suddenly decide to dump an excess of fuel into the fire.
We ran a Glembring for a number of years which was on 24/7 and never had any issues and this fire has the exact same fuel valve as the Refleks.
Phil
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Post by Deleted on Feb 19, 2018 8:56:55 GMT
OK thanks for that phil you are probably right so my system is just overcomplicating it.. Yes of course it has a "carburettor" I had been reading about diesel heaters on ybw forums and somehow got confused between the Refleks and the Taylor's 079 which is drip feed but without the float thing. Ta  |
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Post by peterboat on Feb 19, 2018 9:31:11 GMT
I have a bubble stove Andrew my previous boat had one never an issue flooding, dont forget to add the lead valve to turn it off in the event of fire! it goes in line before the stove and has to fitted otherwise your insurance wont pay.
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Post by Deleted on Feb 19, 2018 9:46:25 GMT
Yes I will have a shutoff valve. I think I might still do the solenoid valve arrangement as well in case of failure of the float in the "carburettor". that way if the thing did start getting too hot the valve would just shut off the fuel so there would be no chance of a fire due to flooding.
Seems a good precaution "belt and braces" type of thing. I'm not planning to leave it on unattended for days and days but definitely overnight and sometimes when not on the boat.
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Post by brummieboy on Feb 19, 2018 22:49:39 GMT
You dont need a solenoid valve. A Teddington KBB remote acting fire valve will give you protection without using power. It will be a lot cheaper too, and easier to fit. That will give you overheat protection. In case of flame failure, the 'carbureter' (or oil control valve) will shut off if fuel is not passing through.
The M.I's for your stove should incorporate the fittinf of a remote acting fire valve.
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Post by Deleted on Feb 20, 2018 2:36:13 GMT
Thanks for that brummieboy and I now realise peterboat was referring to a "fusible link fire valve" in his earlier comment about insurance.
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Post by Deleted on Feb 20, 2018 6:32:15 GMT
Late to this.
The beauty of the Refleks is the absence of any electrical control. Adding a 12v solenoid, thermocouples and relays is a layer of protection it doesn't need.
Phil, Peter and BrummieBoy are on the money.
A Teddington Valve is the solution.
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