Not sure of the GMG pizza attachment is an accessory or mod...

[Indy]

So after seeing the flame going out the back in one of these posts I decided to drill a hole in my diffuser to accept the GMG pipe.
This set up worked flawlessly and the GMG oven fit very nice.
I paid $82 shipped for mine from a site that has damaged boxes but perfect ovens.

View attachment 5394View attachment 5395View attachment 5396View attachment 5397 I did a few pre made pizzas on my initial run but now feel very confident it can be done and will make my own dough and sauce next time.

That's a great mid idea! I have an extra diffuser (rusty), what size hole did you end up drilling? I have a hike drill, but I think it's for wood... May keep this mid in mind if I can't achieve a higher stone temp.

 

[Jayjay1976]

How can I get an extra diffuser to drill into? Is this available from Weber as a spare part???

 

[Goneincognito]

How can I get an extra diffuser to drill into? Is this available from Weber as a spare part???

Only provided as warranty replacements.

 

[Jayjay1976]

Only provided as warranty replacements.

What is the failure mode that warrants a warranty replacement? Just rusting alone or does it have to collapse somehow?

 

[Jayjay1976]

Unless i can source a spare diffuser I'm back to looking for a duct of some kind to extend the pipe coming out the bottom of the pizza oven.

Chimney supply companies sell stainless flue ducting, a reducer could work to flare out the diameter just above the burn pot to capture more of the heat.

I need to unpack my oven and measure the pipe diameter, will post back with dimensions and a link if I find something.

 

[Indy]

What is the failure mode that warrants a warranty replacement? Just rusting alone or does it have to collapse somehow?

If you do a lot of high temp grilling, the parts (fire pit, pellet chute, deflator, etc.) seem to experience premature deterioration. I had several parts replaced.

 

[Bruno]

I’ll measure the hole, I believe it’s 3”, I had a 3” hole saw but it was a tight fit, had to hog it out a little. Patience isn’t really my forte, I should have waited to get a 3 1/2” hole saw from work.

 

[whoareya]

So after seeing the flame going out the back in one of these posts I decided to drill a hole in my diffuser to accept the GMG pipe.
This set up worked flawlessly and the GMG oven fit very nice.
I paid $82 shipped for mine from a site that has damaged boxes but perfect ovens.

View attachment 5394View attachment 5395View attachment 5396View attachment 5397 I did a few pre made pizzas on my initial run but now feel very confident it can be done and will make my own dough and sauce next time.

Thanks for posting this idea, Do you feel this is a good working solution, Weber UK will sell me one new (£70 ) but only place I can find one, so have to suck it up & pay it.

Did you find the flame with this method mainly went straight up the pipe from the diffuser, or at the higher temp, does some of the flame still come out the side of the diffuser, like it would on a high temp cook normally?

But if it works and stops the flame escaping up the back and heats the stone better, then I'm willing to pay it and give it ago, would a 3 or 3.5 inch hole be the best solution

If I did get one, would keep the new one for the Smokefire general use and cut a hole in the old one.

p.s. Did you get to measure the temp of the stone once it was heated up with this method?

 

[Bruno]

Thanks for posting this idea, Do you feel this is a good working solution, Weber UK will sell me one new (£70 ) but only place I can find one, so have to suck it up & pay it.

Did you find the flame with this method mainly went straight up the pipe from the diffuser, or at the higher temp, does some of the flame still come out the side of the diffuser, like it would on a high temp cook normally?

But if it works and stops the flame escaping up the back and heats the stone better, then I'm willing to pay it and give it ago, would a 3 or 3.5 inch hole be the best solution

If I did get one, would keep the new one for the Smokefire general use and cut a hole in the old one.

p.s. Did you get to measure the temp of the stone once it was heated up with this method?

I did I got to 639 and could have easily got temp higher.
It was the only method I could feel safe with. I work in construction and come up with good ideas when I sleep. This was a no brainer, better and safer than anything I’ve seen. I didn’t wasn’t to risk burn back and have the pellets catch fire. I know it sucks having to get a new one.I just felt looking at the way the edges encapsulate the flame it was to good to pass up.
I wanted to do something everyone could do but I love my SmokeFire and need to keep it safe. youll also need a bit to drill the hole. BE CAREFULL!

Good luck!

 

[whoareya]

I did I got to 639 and could have easily got temp higher.
It was the only method I could feel safe with. I work in construction and come up with good ideas when I sleep. This was a no brainer, better and safer than anything I’ve seen. I didn’t wasn’t to risk burn back and have the pellets catch fire. I know it sucks having to get a new one.I just felt looking at the way the edges encapsulate the flame it was to good to pass up.
I wanted to do something everyone could do but I love my SmokeFire and need to keep it safe. youll also need a bit to drill the hole. BE CAREFULL!

Good luck!

Thanks for the reply, so would a 3 or 3.5 inch hole in the diffuser be the best diameter for the pizza attachment pipe to fit into?

 

[Bruno]

Thanks for the reply, so would a 3 or 3.5 inch hole in the diffuser be the best diameter for the pizza attachment pipe to fit into?

I will double check. I think 3 1/2” would be prefect.
The outer lip on the 3” pipe will form a nice seal.

 

[whoareya]

I will double check. I think 3 1/2” would be prefect.
The outer lip on the 3” pipe will form a nice seal.

Thanks, Weber have sent me a special 3 day link to purchase it in their shop as not sold officially. It expires tomorrow

 

[Jayjay1976]

I will double check. I think 3 1/2” would be prefect.
The outer lip on the 3” pipe will form a nice seal.

Since you're a metalworking guy, do you think drilling the diffuser and then covering up the hole for normal cooking with a heavy piece of 304 sheet, say 1/8" thick, is a workable alternative to sourcing a second diffuser?

 

[Bruno]

Since you're a metalworking guy, do you think drilling the diffuser and then covering up the hole for normal cooking with a heavy piece of 304 sheet, say 1/8" thick, is a workable alternative to sourcing a second diffuser?

The thought absolutely crossed my mind, probably what I would do if I didn’t have the extra and I really wanted the pizza oven. You can also try without a diffuser, see if you get hot.

 

[whoareya]

So after seeing the flame going out the back in one of these posts I decided to drill a hole in my diffuser to accept the GMG pipe.
This set up worked flawlessly and the GMG oven fit very nice.
I paid $82 shipped for mine from a site that has damaged boxes but perfect ovens.

View attachment 5394View attachment 5395View attachment 5396View attachment 5397 I did a few pre made pizzas on my initial run but now feel very confident it can be done and will make my own dough and sauce next time.

Popped into a blacksmiths today, who is going to fashion me one out of Stainless steel based on the exact dimensions of the current one.

We talked about making a smaller version to sit directly over the burnpot plate, but I was a little uncomfortable how stable it would be, so went for a copy of the original one.

Cheaper than a Weber replacement from them and a better material for high heat, I believe and as it won't be used nowhere near as much as the original, as it'll be solely for the pizza oven attachment with a hole lasered into it for the pipe. Should still last a good while?

Will report back in a couple of weeks with pictures, if it's successful. Seen a few things people have posted using galvanised steel pipe cutout to allow for the pellets, but I'd still be worried about the flame going up the chute towards the augur . So decided to go with a version of yours.