Aloha Boogie-D here from hawaii

[NCMan]

There’s one place that sells the maddox brands clay fire brick used for fire places... use this brick on pizza oven floor?

It may not be a popular opinion, but I have no problem using the low duty ones. Have used them a few times w/no issues, especially if that's all you can get. True, medium are better, but sometimes you just use what you can get, etc. I know others that have used them also w/no issues. Weren't the ones (mediums)you were looking into 3" thick? I'd weigh the pros and cons and go w/it. I can only say if it were mine and it became an issue getting the mediums and cost/time was another factor, I wouldn't hesitate to roll w/the low duty ones. Just be sure they are actual, low duty firebrick, not clay reds.

[Boogie-D]

"tileco" oahu Here’s the spec for the brick we can get locally.... nc man is this what you used for the floor..

[Gulf]

It may not be a popular opinion, but I have no problem using the low duty ones.

+1 on that. I would guess that the majority of the ovens documented on this site were built with low duty firebrick. Most brick yards only stock what is required for fireplaces. So that is what is most common to find.

[Boogie-D]

It’s not the oven I am talking about... it’s the floor... can the bricks in the web link above be used as a floor

from site:::: Fire Bricks are designed to withstand higher temperatures for longer periods of time and are ideal for building residential fireplaces, outdoor firepits, and grills. Use with Mortar Clay. Meets ASTM C-1261 Standard Specification for Firebox Brick for Residential Fireplaces.

[Gulf]

Yes. My oven floor is going on 8-9 years, I use it year round. No problems.

[Boogie-D]

Well this is very encouraging gulf and nc man... do you cook directly on these bricks or use a pizza stone..???

if I have problems getting my super duty fire bricks from California I may go this route... thank for the input... it’s very helpful in keeping me motivated

[MarkJerling]

You should Mark... it’s awesome... do you surf? Hawaiian airlines had a cheap direct flight for 865$ round trip prior to Covid... we have a very big yard and you could always tent camp at my place to save some coin.. I found in my travels the kiwi good folks and have much in common with the Hawaii culture.. ki Ora

Thank you for the offer! I'm not a surfer, sorry! I just like the sea! (Swimming, snorkeling, etc)

[Boogie-D]

Well there’s plenty of that here mark.. any time... we have plenty of space and maybe you can drag my mate from piha along he has never been here either..

[NCMan]

Well this is very encouraging gulf and nc man... do you cook directly on these bricks or use a pizza stone..???

if I have problems getting my super duty fire bricks from California I may go this route... thank for the input... it’s very helpful in keeping me motivated

I didn't see a link, but yes, we cook directly on the floor all the time. No issues.

[Boogie-D]

Thanks NCMan... Russell took down the link as conflicts with FB policy but it’s the muddox brand standard clay residential fire place brick... I can get those here... 4.95 each..

a lot and I mean a lot of people cook directly on fire brick... but honestly I am not so sure cooking directly on any fire brick is truly safe... no one responded to my post... you think safety would be the number one concern here... as bricks break down they release a tiny toxic particulate?? Don’t see much talk about it.. it concerns me.. the safety of my kids and grandkids.. yup.. they call me papa D.. it won’t stop me from building... I’ll probably go with a pizza stone... aloha!!!! \uuu/

[MarkJerling]

Well there’s plenty of that here mark.. any time... we have plenty of space and maybe you can drag my mate from piha along he has never been here either..

Sounds good! Maybe, post Covid. To answer your query about cooking directly on the floor bricks:

Consider that whatever the bricks "give off" will be on any and every surface and in the air in the oven. Provided the bricks are free of heavy metals (such as lead) you should not have concerns with cooking on the bricks.

I would avoid bricks with added colours. What you want is the most natural product you can find.

[NCMan]

Thanks NCMan... Russell took down the link as conflicts with FB policy but it’s the muddox brand standard clay residential fire place brick... I can get those here... 4.95 each..

a lot and I mean a lot of people cook directly on fire brick... but honestly I am not so sure cooking directly on any fire brick is truly safe... no one responded to my post... you think safety would be the number one concern here... as bricks break down they release a tiny toxic particulate?? Don’t see much talk about it.. it concerns me.. the safety of my kids and grandkids.. yup.. they call me papa D.. it won’t stop me from building... I’ll probably go with a pizza stone... aloha!!!! \uuu/

I answered, I think. Anyway, there are people everywhere that cook directly on firebrick. I do it and have for decades.

[Boogie-D]

Happy New Year everyone!!! Aloha!!! Time for a beer??? I want to share some photos with you all... I have some ground zero pictures of my humble beginning... I use a iPhone 10x and when I searched the App Store for a photo size reducer I didn’t find any apps that looked worthy or safe... can anyone recommend a good app for downsizing my photos to share here??? Mahalo!!! \uuu/...

other then that just waiting on the rain to dry out to start my base... in the meantime trying to figure out the best bricks size for my oven floor.. I have 2 options 18x18x3... and 12x12x3... cutting circles out of square bricks not my forte’ but hope to be putting floor bricks on the barge soon... stoked... materials slowly falling into place... cheers to putting Covid 19 behind us and to a better 2021... ALOHA!!!!

[Gulf]

Test from iPhone8

EDIT: Here is a workaround for sending a pic from an iPhone to the forum in a pinch. I'm not sure if it will work with all platforms. (I use Outlook) I mailed this photo to myself. It will prompt for a size. I chose large. I opened it im my email, selected the photo and chose save image. That saved it back to my photos as the most recent pic.Now with a resized copy, I was able to add it to this post.

[Boogie-D]

Thanks gulf... appreciate you... and for your interest on my build... your input is encouraging... I’ll try this photo email trick soon