qwakers
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all i know is it has happened. and even though its unlikely, its worth proofing against it.
- Thread starter doubleboost
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Barking Mat
Cuddler of hedgehogs.
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Very good...CE in this case stands for Chinese Export. seriously, im not kidding
qwakers
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Barking Mat
Cuddler of hedgehogs.
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I've had a few beers, I'll return to this tomorrow with a clear head, even a false start, which has shown up as an error, failed combustion, surely is can ventilated and exhausted.
Imagining, the pcb fails, false start, combustion, but no fan, yes I can imagine combusted gas, smoke, we'll say, if the fan failed, could come out the inlet, but it would take the flame detector to ...
Tomorrow, I'm not explaining myself properly...
I'll think about this, I'm an experienced fitter / installer / repairer, but not a guru...
Interesting point...
badabec
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That seems to be an urban myth.
https://www.europarl.europa.eu/sides/getDoc.do?type=WQ&reference=P-2007-5938&language=EN
Surely they would just use a CE mark (regardless of wether it's been through the CE process) if they wanted, without making up a "China Export" mark.
Barking Mat
Cuddler of hedgehogs.
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That's pretty shocking, thank you @qwakers
Barking Mat
Cuddler of hedgehogs.
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Curious some of these £87 5kw heaters are marked CE, some not, they all look the same.
qwakers
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well its obviously enough of a issue for Eberspaecher themselves to outlaw combustion air being taken from the cabin.
bigegg
Scream Not Working Because Space Make Deaf
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Can I ask if it's because it's a semi sealed living space that you don't draw the combustion air from the heated space?
I guess there is a risk of carbon monoxide escaping back into the heated space should there be a sudden power failure...
My unit draws combustion air from the inside space but my workshop has plenty of gaps and cracks to let fresh air in and I only sleep there when she kick me out
View attachment 263399
1. SAFETY: There is a risk of CO leaking back into the living space under a fault condition.
2. COMFORT: If you draw air from inside the cabin into the combustion chamber, it will then be vented outside via the exhaust port. This air has to be replaced somehow - it will be replaced by cold air being drawn in from outside: cold draughts through every gap.
3. EFFICIENCY: If you draw (heated) air from the living space into the combustion chamber, then you are venting heated air to outside. Draughts aside, you must then heat more air from outside temperature. Also, warm air is less dense than cold air. The denser the air entering the combustion chamber, the more fuel can be burnt.
bigegg
Scream Not Working Because Space Make Deaf
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It's a "chinese export" mark, not "certificat europe" mark.
Some of the importers save themselves the expense of a sticker.
Barking Mat
Cuddler of hedgehogs.
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Yep, combustion air is being sucked in from a separate well insulated bilge (from the living compartment), with ventilation, back to my point, oxygen issue.
bigegg
Scream Not Working Because Space Make Deaf
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I think it's more CO leakage into the cabin. I doubt you'd be able to seal a boat to the point that sufficient fresh air couldn't get in around door frames etc.
Barking Mat
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I'll quote the manual tomorrow, I think we're splitting hairs.
Irrespective of a combustion failure, causing shutdown, the amount of failed combustion gases through the air intake would be 'small', a better word escapes me, maybe miniscule, seeing as the combustion air intake is in a different bilge well ventilated from the living space, can't see the issue..
And any failure would event in the cooling cycle kicking in, it would blow it out.
Worse thing you could do is to cut the supply voltage, resulting in the unit overheating...
I guess.
Hence trip switches not allowed, directly plumber to batteries.
Bed, We'll continue tomorrow, but I think we're splitting hairs.
Irrespective of a combustion failure, causing shutdown, the amount of failed combustion gases through the air intake would be 'small', a better word escapes me, maybe miniscule, seeing as the combustion air intake is in a different bilge well ventilated from the living space, can't see the issue..
And any failure would event in the cooling cycle kicking in, it would blow it out.
Worse thing you could do is to cut the supply voltage, resulting in the unit overheating...
I guess.
Hence trip switches not allowed, directly plumber to batteries.
Bed, We'll continue tomorrow, but I think we're splitting hairs.
Barking Mat
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A co2 leakage into the cabin could only be caused by the internal gasket failure between the combustion chamber leaking into the blown heating system.
I rebuilt alot of Webastos...
Barking Mat
Cuddler of hedgehogs.
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I really should pull one apart, video it, and explain exactly how they function .
However this instalment, is a question of satisfying the badly explained installation instructions to warrant the warranty.
So I've been in regular contact with the supplier, to iron out the ripples and incomprehensions, in their installation manual, which is simply, confusing.
I'll scan the manual, tomorrow, but I might have to move this to the private forum...
I'm really going to bed now, I've got to be up in six hours...
Interesting points raised...
However this instalment, is a question of satisfying the badly explained installation instructions to warrant the warranty.
So I've been in regular contact with the supplier, to iron out the ripples and incomprehensions, in their installation manual, which is simply, confusing.
I'll scan the manual, tomorrow, but I might have to move this to the private forum...
I'm really going to bed now, I've got to be up in six hours...
Interesting points raised...
WorkshopChris
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With the heater in a workshop situation, is anyone filtering the inlet circulating inlet air?
I have just managed to fit a heater at the workshop, combustion air and exhaust are piped through the wall to outside fresh air.
But despite extraction, the workshop does get dusty it's almost impossible to capture all the dust when working with wood and sheet materials.
Obviously, you cant restrict the airflow or the casing to the heat exchanger will overheat. Might just be a case of blowing the thing out with the airline every now and then.
Don't know how much dust might build up at the moment, but was thinking of something like this, a universal car air intake filter.
I have just managed to fit a heater at the workshop, combustion air and exhaust are piped through the wall to outside fresh air.
But despite extraction, the workshop does get dusty it's almost impossible to capture all the dust when working with wood and sheet materials.
Obviously, you cant restrict the airflow or the casing to the heat exchanger will overheat. Might just be a case of blowing the thing out with the airline every now and then.
Don't know how much dust might build up at the moment, but was thinking of something like this, a universal car air intake filter.
bigegg
Scream Not Working Because Space Make Deaf
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Qwertyzmate
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Personally I would be wary of restricted airflow over the exchanger as the electronics are prone to overheating.
If you have a van type unit then you can just unscrew the plastic 'intake' grill and the top comes right off and that's at least a 1/3 of the casing. Then it's just a quick go over with the shopvac as often as you think it's needed for your environment... It's a 2 min job if the unit is accessable
If you have a van type unit then you can just unscrew the plastic 'intake' grill and the top comes right off and that's at least a 1/3 of the casing. Then it's just a quick go over with the shopvac as often as you think it's needed for your environment... It's a 2 min job if the unit is accessable
