My contractor mortared in the hearth fire brick - I think a mistake was made


I just had our oven built by a local masonry contractor last week. When I was re-reading the instructions today I noticed it specifically says not to use any mortar on the firebricks that are used as the cooking surface. I double checked and he did fill between the bricks with mortar. What kind of issues is this going to cause?


No worries! While it isn’t ideal… it will be fine.
One of the main reasons you don’t want to mortar in the hearth brick - replacing broken firebrick.

BUT - this rarely, rarely happens, so no stress.

In addition - you will have wood ash and pizza guts all over that brick & mortar very soon, so… you will hardly see the mortar in a few months.


That’s a relief…was a little stressed when I read that…Thanks for the reply. The guy did a really nice job overall.


Your guy did an EXCELLENT JOB!

Please be sure to send pictures to the BrickWood Ovens Photo & Video Gallery

We would love to show your oven to the world!

Thanks -


We are in the rainy NorthWest, so we are pretty up-to-date on the best weatherproofing methods… especially on a budget.

The BEST way to weatherproof your oven (which we recommend to everyone) is to simply cover the oven with a thick, clear piece of plastic sheeting. This can be purchased at most Mom & Pop / local hardware stores - for about $10.

That’s about as budget-conscience and weatherproof as it gets. It keeps all the moisture out - nice and dry inside.

To the second part of your question - Applying several layers of paint on the stucco is an excellent way to seal a portion of the oven, but keep in mind, as long as there is exposed masonry, there is an opening for moisture. If masonry gets wet, it will act like a sponge and soak-up the water (wicking).

So unless you can afford a custom made cover for your oven (every BrickWood Oven is different - so we don’t offer covers), plastic sheeting is the best and least expensive way to weatherproof your oven.