Insulating an oven - what to use?

Minxy

Minxy

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Since 1996, had Elddis/Swift/Rapido/Rimor/Chausson MHs. Autocruise/Globecar PVCs/Compactline i-138
I know there was a thread on here about an oven not being great and some people suggested putting insulation round it, can anyone tell me what insulation type I'd need as I'd like to do mine and don't want to end up with an indoor bonfire! :oops:
 
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Mine was listed as "pizza oven" insulation on ebay. Not cheap but you only buy it once. Make sure any wires or controls are on the outside of it.

Did mine years ago, everybody moans about their Thetford oven but mine is great 😊
 
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I used ceramic fibre blanket 40mm to insulate the top of our Tec tower oven and it’s made a noticeable difference. I never tried to insulate the sides. Got it off eBay.

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Minxy said:
I know there was a thread on here about an oven not being great and some people suggested putting insulation round it, can anyone tell me what insulation type I'd need as I'd like to do mine and don't want to end up with an indoor bonfire! :oops:
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Let me know how you get on doing that as I've thought about it for mine. I may as well let you climb the 'steep learning curve'. ;)
 
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The fibres from some of those ceramic refractory blankets can be a bit nasty if breathed in. Probably ok once fitted, but best wear a dust mask when cutting it to size.
You can buy a "rigidizer" ( just be careful if you Google it !) which you spray onto the blanket and it holds the fibres securely in place.
 
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jockaneezer said:
The fibres from some of those ceramic refractory blankets can be a bit nasty if breathed in. Probably ok once fitted, but best wear a dust mask when cutting it to size.
You can buy a "rigidizer" ( just be careful if you Google it !) which you spray onto the blanket and it holds the fibres securely in place.
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I wore a mask and gloves when I was cutting it to shape.
 
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There's various types of this ceramic stuff, does it need the aluminium one one side or not at all?
 
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Next question, what thickness?
 
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I think I remember Lenny HB insulated one of his Tech Tower Ovens years back using some sort of ceramic fibre board which he cut to size. I think he was more concerned about the excessive heat produced above the oven, not just the performance of the oven itself.
I have to say, it sure gets hot up there, one of the reasons, but not the main one, that we don't use our oven very often, except for warming up the odd Pizza or pie, I just don't trust the the thermometer settings, even pre warming you can forget the usual cook times also.
PS: I will never forget what a dealer sales guy said to me years ago now, but still true Quote: They are nothing like as good as your home oven, you gotta remember this is camping gear after all!:rolleyes:
His best ever quote was: Compared with an Alde wet heating system, warm air types are just fan heaters in biscuit tins!:LOL:
I have to agree with him unfortunately, its Funny the things you remember all your life isn't it.
LES
 
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Minxy said:
Next question, what thickness?
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The stuff I used was about an inch thick, and yes, was double sided aluminium. It's quite compressible to slot down the sides. Don't put it down the back... Or at least, I didn't. It's not combustible. But I didn't want to block the air low when running on gas.

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I also made up a slab of the ceramic insulation which sits in the bottom of our grill as our oven is below our grill with no insulation between the two, so the oven heat was bleeding through to the grill above. We just remove the slab of insulation when we use the grill.
 
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I think the insulation I used was 25mm. No foil on it, I used 50mm foil duct tape to hold it on but don't know if that's dropped off by now, must be going on 10 years ago. I had a thought earlier you can wrap chicken wire round it to hold it on 👍

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i USED A SOLId ceramic/cement board from B&Q about 4mm thick. cant remember name and its not on the offcut i got left. Used a jig saw to cut fresh blade each cut. Easy to use and did the job in thermaly issolating wood pannels next to oven. used to get really hot.
 
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Minxy did you ever do this? I'm tempted to do ours as it has just 2 controls, off and fully on, but still takes ages to cook anything. It makes no difference what level the knob is set to, it's just fully on. The flames don't alter at all. It may be faulty, but I have nothing to compare it to.
 
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Can you use 50mm double foil cellotex slabs cut to size?
I’ve got some of that lying around👍🤔

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Melting point of Celotex is about 200 degrees. Certainly unsuitable.
 
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I have a Dometic Tech Tower fitted in my Hymer. It has a vent from the roof of the oven which vented via a 4" diameter aluminium tube through a "top hat" on the roof. Not seen that much on other vans so I wonder if it is just a Hymer "thing".
 
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Jo-jo said:
Minxy did you ever do this? I'm tempted to do ours as it has just 2 controls, off and fully on, but still takes ages to cook anything. It makes no difference what level the knob is set to, it's just fully on. The flames don't alter at all. It may be faulty, but I have nothing to compare it to.
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No, not really looked at it yet, will do so at some point.
 
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