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I'm not familiar with FB ovens or how they are assembled. As you can see there is a gap at the apex. <snip>
As you should coat the entire outside with Refrax [I covered my at least 2" thick] I do not feel it will cause any harm. Assembly is an easy task and can be done in one day after the base is prepped and ready to go.
Thanks for the shoutback. The pic is from an oven mounted on a "concessionaire" trailer from Joseph. I'm in the process of buying it from a 3rd party. Pretty much just wondering if it's ok as seen or would I need to stick some HeatStop in there.
There is a thick layer of refractory material between the inner face of the oven and the outer face, so the chip isn't a problem. I would recommend that you do a cosmetic patch using Refmix or Heatstop50 for a little peace of mind -- and it will look nicer. Get the whole area wet before you do that patch, so the oven doesn't suck the water out of the mortar.
Glad to hear it from the horses mouth.
Without digging around in the posts.... was it better to buy the dry HeatStop50 or the wet stuff in the bucket?
My M.A.M. could use a little patching as well.
We've heard repeated bad reports about wet premixed refractory mortars, including the one sold by heatstop. Buy the dry mix, it comes in a ten pound container, as well as the fifty pound bag. (that's what the 50 is in heatstop 50) My local brickyard carries it in the little container.