Mercedes vario 814 self build bus to FLT palace

Yes ive often wondered why motorhomes don't have the fires just the blow heating. This caravan has fire and boiler and both can work on electric or gas or combined.
Quite a few reasons:
Space - my van is 7.5m no space at all to fit one.
Would need a separate hot water boiler so more space is required.
The fires are not as powerful as the combi boilers, probably because they have to be mounted on furniture.
Not balanced or fan flued so can't be used while driving.
They rattle when driving.
 
Yes ive often wondered why motorhomes don't have the fires just the blow heating. This caravan has fire and boiler and both can work on electric or gas or combined.
Quite a few reasons:
Space - my van is 7.5m no space at all to fit one.
Would need a separate hot water boiler so more space is required.
The fires are not as powerful as the combi boilers, probably because they have to be mounted on furniture.
Not balanced or fan flued so can't be used while driving.
They rattle when driving.
 
Quite a few reasons:
Space - my van is 7.5m no space at all to fit one.
Would need a separate hot water boiler so more space is required.
The fires are not as powerful as the combi boilers, probably because they have to be mounted on furniture.
Not balanced or fan flued so can't be used while driving.
They rattle when driving.
Aye but this caravan is obviously smaller than my van was yet its found space for a fire and a seperate boiler. It has a truma 10 litre boiler under the bench seat. Ive not used it in anger yet but i think the fire alone will heat the space i have

Bit the rattling i can imagine would be an issue ...but then im sure the germans could design one that didn't rattle.



But ill have my woodburner in my vario when its done so won't be a problem for me then ......still not decided what im using for hot water though .... don't really want vents in the side of the van
 
You simply cannot beat a convection type fire like that on a cold morning when you're getting dressed, simply stand in front of it and pull your top away from your waist so the heat goes up and warms your sticky out bits ... or in the case of Tam his man boobs! :LOL:
Thanks,…. I now have a vision in my head that will last the day out Mel…😆
 
Yes ive often wondered why motorhomes don't have the fires just the blow heating. This caravan has fire and boiler and both can work on electric or gas or combined.

Gas fire uses no battery power on its own which would be great in the motorhome.
Unless its a balanced flue make sure you have got adequate ventilation. This type of heater can be deadly. (y)

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Unless its a balanced flue make sure you have got adequate ventilation. This type of heater can be deadly. (y)
Fresh air is taken from an unlet under the van and waste fumes via chimney pipe to the roof, the burner is room sealed.
 
A normal night
Screenshot_20210905-112542_Facebook.jpg
 
Fresh air is taken from an unlet under the van and waste fumes via chimney pipe to the roof, the burner is room sealed.
l respect your opinion but.. sorry, but this is not room sealed. Any blockage between either one could be fatal.

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l respect your opinion but.. sorry, but this is not room sealed. Any blockage between either one could be fatal.
Considering they are approved by pretty much every organisation across Europe ( and no doubt further afield ) for use in vehicles and enclosed settings and do carry an impressive batch of certification issued by some very clued up people, I would say they are safe
You are so definite I must ask what level of qualification you have that brings your opinion above not the just the opinions but the lab tests of those who claim to know ?
 
l respect your opinion but.. sorry, but this is not room sealed. Any blockage between either one could be fatal.
If that is the case and they are unsafe why have caravan and motorhome manufacturers fitted them.
 
If that is the case and they are unsafe why have caravan and motorhome manufacturers fitted them.
You’re always going to get “experts” that claim to know more than the manufacturers of things. Just ignore them.

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How? The burner is in a sealed compartment with an external air inlet and external exhaust.
I spent most of my life as a plumbing & heating engineer.
In a true balanced flue / room sealed installation the flue will be usually a 4" size double skin flue pipe with 2" boiler flue in centre and the outer skin will be for inlet air for combustion. Not looking for an argument just my opinion. xx
 
I spent most of my life as a plumbing & heating engineer.
In a true balanced flue / room sealed installation the flue will be usually a 4" size double skin flue pipe with 2" boiler flue in centre and the outer skin will be for inlet air for combustion. Not looking for an argument just my opinion. xx
Agreed. But I was querying your suggestion that blocking either inlet or outlet would lead to an unsafe situation.
 
Agreed. But I was querying your suggestion that blocking either inlet or outlet would lead to an unsafe situation.
As the burner is sealed ( or should be) Surely if the inlet is blocked the flame is starved of oxygen so goes out, the gas valve then does its bit and shuts down the gas supply.
 
Agreed. But I was querying your suggestion that blocking either inlet or outlet would lead to an unsafe situation.
Indeed it would... Inadequate oxygen or air is as bad as leaking flue gasses.. sucking all oxygen out of the room especially as its what we breathe. Tam, a lot of old caravans are not the safest of things and thats why we have habitation checks. But its funny how every one has their view and will argue it to the death, right or wrong. Now can we put this to bed. Thankyou, nite nite

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Indeed it would... Inadequate oxygen or air is as bad as leaking flue gasses.. sucking all oxygen out of the room especially as its what we breathe. Tam, a lot of old caravans are not the safest of things and thats why we have habitation checks. But its funny how every one has their view and will argue it to the death, right or wrong. Now can we put this to bed. Thankyou, nite nite
Tbf it isnt that old ...its a 2004 caravan and from what i can see its a 2 elderly owner with full habitation service history on it ...well nearly .

There is a sticker saying flue inspection april 2019 . Dont think it was used the last 18 months due to ill health.
 
Indeed it would... Inadequate oxygen or air is as bad as leaking flue gasses.. sucking all oxygen out of the room especially as its what we breathe. Tam, a lot of old caravans are not the safest of things and thats why we have habitation checks. But its funny how every one has their view and will argue it to the death, right or wrong. Now can we put this to bed. Thankyou, nite nite
appydaze
I'm not questioning your expertise - I do really want to understand. How can a blocked inlet or flue cause the oxygen in the van to be used when neither is connected to the van?
 
Who'd have thought this would cause so much debate .

My thoughts are these fires are fitted in most caravans and it has to be certified as safe or they wouldn't get to fit them .
There is always a risk that why the co2 alarms are compulsory for many purposes, better safe then sorry. You can’t smell it but it is a certain death if it happens and your asleep.

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To get back on track tam how are you and the van rebuild going.
Im ok ...not worked on the vario for a few days as im awaiting a metal delivery. Been painting mums shed today and i had her out at a few shops today for a change of scenery.... I've been struggling to get her out the house bar a once a week trip to asda ...and im not sure thats good for her.
 
Bit the rattling i can imagine would be an issue ...but then im sure the germans could design one that didn't rattle.
The one we had in our Rapido 709F (2003) didn't rattle.

But ill have my woodburner in my vario when its done so won't be a problem for me then ......still not decided what im using for hot water though .... don't really want vents in the side of the van
Could you put in a flue through the roof instead? What about the hole you were going to block up opposite the one you're using for your wood burner?
 
The one we had in our Rapido 709F (2003) didn't rattle.


Could you put in a flue through the roof instead? What about the hole you were going to block up opposite the one you're using for your wood burner?
The flue for the woodburner is going through the roof ...the other hole is now welded up. Still not decided what water heater im fitting. Only use it for a shower nothing else. Still thinking of different options including heating a tank from the engine coolant circulation.

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