FAQ's & Online Support


In order to keep pricing as LOW as possible, your box of Ceramic Fiber Blanket is shipped from one of our refractory partners nearest to your Ship-To location.  Your blanket will most likely arrive 10-12 days after your BrickWood Ovens order has arrived.

If your blanket has NOT arrived within 15 business days of your order, please let us know.

Phone support is expensive. Very expensive!  In order to keep our prices the lowest in the industry, we crafted ridiculously-detailed Installation Instructions with Materials Lists that clearly explain every step of the building process from start-to-finish. 

The BrickWood Ovens Forum provides a place for DIY’ers of all skill levels a location to discuss their oven projects, ask project related questions and read posts from BrickWood Ovens customers that have built their dream oven from scratch.  Peruse 1000’s of searchable pizza oven posts by topic or tag. 

And our FAQ Page provides quick answers to our most frequently asked questions.  

If you have an account or order inquiry, visit your - BrickWood Ovens Account 

Want to track your order, simply click – Order Tracking 

Still need to reach us?  Click the “Contact Us” tab on the bottom of this page and leave your message.  We will respond within 2-business days.

Thank you!

We removed Step 48.  

Instead of using flour to lock the hearth firebrick into position, we recommend you use the ash from the curing fires instead.   We are currently working on Directions 2.0 and that change will be made, but for now... just ditch the flour (it tends to mold w/ moisture).

For more information, please visit our forum post - STEP 48

Sending Your Photos And Videos Is As Easy As 1.. 2.. 3!

Want the World to see your BrickWood Ovens project? We want to show it to them! Simply follow these 3 steps and your oven photos and videos will be posted on our Oven Gallery in just a few days! You can send up to 20GB at one time, so feel free to send us as many pictures / videos as you desire. 

And Hey... Thanks for taking the time to take to send us pictures of your awesome oven! 



1. Select all the Photos &/or Videos you want to submit by selecting (highlighting) your oven photo files that are in your Photo Folder.

2. Once the files are highlighted, simply drag them to the section appropriately named "Drag & Drop Files Here". Then type your Name, Email Address and a Short Message about your oven and hit "Send Now!"

3. By submitting your awesome oven photos &/or videos through this file transfer, you are agreeing to our Photo Gallery Terms of Service.

Absolutely! But it costs a bit more to ship to our neighbors to the North…

Once you have added all of the items you want to purchase to your cart, simply enter your Canadian “Ship-To” address and click on “Update”. You will now see the cost of shipping to Canada (and we try to keep it as LOW as possible - but those taxes, duties, customs fees, etc… are getting out of hand).

For the lucky 75% of Canadians that live 100 miles (160 kilometres) from the US border, you can save hundreds of dollars by having your DIY wood-fired pizza oven kit from BrickWood Ovens shipped directly to a US based parcel / package facility near your home. Simply reach out to any of the locations shown below and inquire about their incoming shipping rules prior to ordering from BrickWood Ovens.

Service fees range around $4 - $6 per delivered box (oven / blanket / door / exhaust kit) and remember to print and carry your invoice with you before you cross the border. Per customs, you are allowed to purchase and return to Canada with a maximum of $2000 of materials without having to fill out pesky customs forms and pay those outrageous duties and fees.

Find your local US based Parcel Pick-up store w/ map and contact information -

New Brunswick 15. Milltown / Saint Stephen The UPS Store
499 Broadway
Bangor, ME 04401
Open today
8:00 am – 6:00 pm
New Brunswick 6. Fort Fairfield / Perth-Andover Goin' Postal
26 North St
Presque Isle, ME 04769
(207) 760-8080
Quebec 3. Highgate Springs / St Armand The UPS Store
38 N Main St
St Albans City, VT 05478
(802) 782-8326
Quebec 12. Champlain / Lacolle Border Mail Depot
102 W Service Rd
Champlain, NY 12919
(518) 208-3028
Quebec 12. Champlain / Lacolle Freeport Forwarding
1320 U.S. 9
Champlain, NY 12919
(518) 298-8582
Quebec 10. Mooers / Hemmingford C & C Mail
3106 US-11
Mooers Forks, NY 12959
(518) 907-0114
Ontario 3. Seaway Bridge The UPS Store
8 NY-37 Ste 6
Hogansburg, NY 13655
(518) 333-0426
Ontario 2. Ogdensburg-Prescott International Bridge The UPS Store
2981 Ford Street Extension
Ogdensburg, NY 13669
(315) 393-1188
Ontario 4. Lewiston-Queenston Bridge The UPS Store
793 Center St
Lewiston, NY 14092
(716) 405-7116
Ontario 4. Lewiston-Queenston Bridge The UPS Store
2316 Delaware Ave
Buffalo, NY 14216
(716) 877-7711
Ontario 3. Whirlpool Rapids Bridge SGS Can-Am Mailboxes
2315 Whirlpool St
Niagara Falls, NY 14305
(716) 284-6245
Ontario 3. Whirlpool Rapids Bridge American Mailbox
256 3rd St #12
Niagara Falls, NY 14303
(716) 236-7299
Ontario 1. Peace Bridge The UPS Store
266 Elmwood Ave
Buffalo, NY 14222
(716) 885-5902
Ontario Ambassador Bridge FedEx Office Print & Ship Center
3670 Woodward Ave #102
Detroit, MI 48201
(313) 832-4806
Ontario Detroit-Windsor Tunnel MyDetroitAddress
277 Gratiot Ave #100
Detroit, MI 48226
+1 226-787-4444
Ontario Detroit-Windsor Tunnel Blue Water Shipping Depot
2126 Lapeer Ave
Port Huron, MI 48060
(810) 937-2448
Ontario Detroit-Windsor Tunnel Anderson Parcel Pickup Center
1340 Water St
Port Huron, MI 48060
(810) 966-8339
Ontario Blue Water Bridge SCC Parcel Pickup Llc
2540 Lapeer Rd
Port Huron, MI 48060
(810) 985-7220
Ontario Sault Ste. Marie International Bridge Pak N' Ship Xpress
4234 Interstate 75 Business Spur
Sault Ste. Marie, MI 49783
(906) 635-9000
Ontario International Falls / Fort Frances BorderBoxes
304 3rd St
International Falls, MN 56649
(218) 283-8666
Manitoba 18. Pembina / Emerson Mike's Parcel Pickup
373 W Stutsman St
Pembina, ND 58271
(701) 825-6471
Manitoba 17. Neche / Gretna Menke's Parcel & Handling
539 E 5th St
Neche, ND 58265
(701) 886-7579
Manitoba 17. Neche / Gretna The Corner Parcel, LLC
121 N Cavalier St
Pembina, ND 58271
Manitoba 16. Walhalla / Winkler Connie's Depot
1800 ND-32
Walhalla, ND 58282
(701) 549-3749
Manitoba 16. Walhalla / Winkler U-CAN Ship & Store
474 Main Ave
Neche, ND 58265
(701) 866-7778
Manitoba 10. Peace Garden Border Shipping Services
10543 Old US Hwy 281
Dunseith, ND 58329
(701) 263-4783
Manitoba 10. Peace Garden FedEx Office Print & Ship Center
3220 S Broadway St
Minot, ND 58701
(701) 852-7183
Manitoba 7. Antler / Lyleton The UPS Store
1940 S Broadway St
Minot, ND 58701
(701) 838-7870
Saskatchewan 2. Ambrose / Torquay The UPS Store
301 58th St W
Williston, ND 58801
(701) 572-5965
Saskatchewan 2. Ambrose / Torquay Mailbox Solutions Plus
2324 2nd Ave W
Williston, ND 58801
(701) 639-4813
Alberta 5. Sweetgrass  /Coutts Montana Shipping Outlet
412 Oak St
Sweet Grass, MT 59484
(406) 335-7447
BC 1. Roosville / Eureka / Grasmere Montana Shipping Outlet
121 Dewey Ave
Eureka, MT 59917
(406) 297-2016
BC 3. Bonners Ferry / Midway Three Mile Shipping Depot
98 Sunrise Rd
Bonners Ferry, ID 83805
(208) 267-0704
BC 3. Bonners Ferry / Midway Badger Print Mail & Ship
6653 Main St
Bonners Ferry, ID 83805
(208) 267-1637
BC 2. Oroville / Osoyoos Ship Happens
1920 N Main St
Oroville, WA 98844
(509) 476-3995
BC 2. Oroville / Osoyoos Betta's Services
1306 Main St
Oroville, WA 98844
(509) 476-2888
BC 4. Sumas / Huntingdon Pic-It-Up
603 Cherry St
Sumas, WA 98295
+1 604-359-0315
BC 4. Sumas / Huntingdon Ship Happens
115 1st St
Sumas, WA 98295
(360) 988-8100
BC 3. Lynden / Aldengrove Timekeepers
1706 Front St
Lynden, WA 98264
(360) 354-0556
BC 2. Blaine / Surrey Mail Boxes International
Blaine Center
1685 H St
Blaine, WA 98230
(360) 332-7678
BC 1. Peace Arch Mail Boxes Plus
477 Peace Portal Dr # 107
Blaine, WA 98230
(360) 332-1816


BrickWood Ovens pizza oven kits are shipped from Lynden, WA. It’s a small border town on the tip-top left corner of the United States… a stones-throw from Canada. And when we do throw stones at the Canadians, they usually apologize when we hit one of ‘em. They are so polite!

Refractory & Bagged Materials such as Ceramic Fiber Blanket, Fire Brick, Refractory Mortar, Castable Refractory Cement, etc., are shipped from our refractory partners closest to your jobsite / location. This helps keep our prices low and provides the fastest possible delivery.


FedEx Ground Shipping:

BrickWood Ovens ships all US orders via FedEx Ground. We do not offer Overnight, 2-Day, Express, UPS or USPS delivery. In addition, we do not offer local pick-up or Will-Call service.



Freight Shipping:

We do not have control over the arrival day or time, but you will receive a phone call from the freight forwarder the day before your pallet(s) arrival so you can make delivery arrangements. For this reason, it is critical to provide the most relevant phone number during check out. Our freight includes free curbside delivery and liftgate service. Upon delivery, the driver will remove the item from the truck, but it is the customer's responsibility to bring the item onto the property.

Customers are required to sign for freight delivery, so be sure to inspect the item before accepting delivery. Any damage present upon arrival MUST BE ANNOTATED when accepting the delivery. BrickWood Ovens LLC is not liable for damages that were failed to be noted at time of delivery.


International Shipping:  Orders shipping internationally are not eligible for free shipping nor eligible for returns.

Canada: Once you have added all the items you want to purchase to your cart, simply enter your Canadian “Ship-To” address and click on “Update” and you will see the updated cost of shipping to Canada. We try to keep the costs as LOW as possible, but those taxes, duties, customs fees, etc… are beyond our control.

For the lucky 75% of Canadians that live 100 miles (160 kilometers) from the US border, you can save hundreds of dollars by having your DIY wood-fired pizza oven kit from BrickWood Ovens shipped directly to a US based parcel / package facility near your home. Simply reach out to any of the locations shown below and inquire about their incoming shipping rules prior to ordering from BrickWood Ovens. USA / Canada Border - Parcel & Package Pick-up Locations.

Hawaii & Guam: We ship to Hawaii and Guam via Dependable Hawaiian Express, a low-fee freight forwarder based in Seattle that makes weekly sailings between Seattle and Hawaii / Guam. Click here for more information about shipping to Hawaii & Guam.

Caribbean Countries: Believe it or not, we ship a lot of pizza oven kits to the Caribbean!  We can ship your order to Blue Ocean Transport - a freight forwarder in Miami, FL that makes weekly sailings between Miami and several Caribbean locations & the Virgin Islands. They can forward your pizza oven kit to your tropical destination for a nominal fee.  Click here for more information about shipping to Caribbean countries.

APO / FPO / DPO: We are unable to ship to APO / FPO / DPO addresses at this time.

Everybody Else: We are unable to ship the BrickWood Ovens products outside of the continental United States & Canada due to the insanely high cost of international shipping. Our oven kits come in very large boxes, so shipping these large kits overseas has become very, very expensive… therefore, we discontinued international shipping.


Updated on 1.01.22 


Shipping destinations:

  • We ship both locally and worldwide.

Shipping times:

  • Local orders take X business days to be delivered to you and we ship within X business days.
  • International orders take X business days to be delivered via Carrier X, Carrier Z, Carrier N or Carrier M and we ship within same X business days.
  • Shipping time might vary depending on location, shipment method and other factors.

Shipping cost:

  • Orders over $X will have free shipping.
  • Orders under $X will be charged for shipping depending on your chosen delivery method and country. Full price will be displayed at checkout. 


We want you to be completely satisfied with the products you purchase from BrickWood Ovens! If you are unsatisfied with your purchase for any reason, please let us know, and we will do our best to rectify any issues you may have as quickly as possible.

We offer a simple return policy allowing you to return any new, unused, unassembled, and resalable items in their original packaging within 30 days of delivery for a refund. The refund issued will be for the total amount of the order minus original outbound shipping and any return shipping costs incurred by BrickWood Ovens.


Refund Eligibility:

To be eligible for a return, item(s) must be within 30 days of delivery in new, unused, unassembled, and resalable condition in the original packaging.

  • BrickWood Ovens is not responsible for return shipping costs.

  • The cost of original outbound shipping will be deducted from the refund total.

  • Refractory & Bagged materials (fire bricks, refractory mortar, castable refractory, perlite / vermiculite, lime, fire clay, etc…) are not eligible for return / refund.

  • International / Overseas Orders are not eligible for return / refund.

  • Returns are usually processed within 8-10 business days, but processing time may be longer during seasons of high volume. The bank associated with the charge may also have additional processing time before issuing a credit.


BrickWood Ovens LLC Reserves The Right To Refuse A Refund Or Apply A Restocking Fee If:

  • The item returned does not match the original item shipped.

  • The returned item is missing parts or the original product’s packaging, either of which were not previously specified by the customer.

  • The item was damaged during return shipment due to improper or insufficient packaging.

  • The item being returned has been used or is no longer in new and resalable condition.

  • The item is returned after the 30-day return window.


To Proceed With A Return Or Exchange:

To return or exchange your order, we will need for you to request a Return Merchandise Authorization number (RMA). This can be done by emailing - sales@brickwoodovens.com

Be sure to include the following information with your return request.

  • Order Number

  • Reason for Return (or exchange)


Once you receive an RMA number, write that number on the outside of each box you are returning.

Return Shipping Label (Option 1) - Purchase & Print your return shipping labels online and schedule a FedEx Ground Pick-up at your location. https://www.fedex.com/lite/lite-ship.html#address

Return Shipping Label (Option 2) - Take the box(es) to your local Authorized UPS or FedEx Shipping Center and they will generate a return label(s) for you and provide package handling.


Return Address:

BrickWood Ovens
1706 Front Street
Unit 730
Lynden, WA 98264


Updated on 1.01.22

Unused items can be returned for a full refund within 30 Days from the Date of Purchase. All items must be in unused and resellable condition.

  • Refractory items (e.g. firebricks, mortar, castable refractory, etc…) are not eligible for return / refund.

  • International / Overseas Orders are not eligible for return / refund.

  • BrickWood Ovens is not responsible for return shipping costs.

  • A 25% shipping recovery fee will be deducted from your refund (this is to cover the shipping & handling costs that we incurred when shipping your order).

To proceed with a Return or Exchange -

1. To return or exchange your order, we will need for you to request an Return Merchandise Authorization number (RMA). This can be done by emailing - sales@brickwoodovens.com

Be sure to include the following information with your return request.

  • Order Number
  • Reason for Return (or exchange)

2. Once you receive an RMA number, write the number on the outside of each box you are returning. Take the box(es) to your local Authorized UPS or FedEx Shipping Center and return your order to:

UNIT 730
LYNDEN, WA 98264

Purchase & Print your Return shipping labels - AND schedule a FedEx Ground Pick-up at your location!
https://www.fedex.com/lite/lite-ship.html#address 3

3. Refunds are credited to the same payment method that you used during checkout. You can expect to receive your refund within two weeks of shipping your items back to us. In many cases you will receive a refund sooner, but we estimate two weeks because of the time required for return shipping (up to 10 days).


Your 100% satisfaction is important for us. We offer a 30-days Return & Exchange Policy:

  • If a product gets damaged or was faulty upon a delivery - we offer 100% refund.
  • Timing: we have a 30-days Return & Exchange Policy, since the day item was received.
  • To be eligible for a return, goods must be unopened, unused, undamaged and accompanied by proof of purchase.
  • For returns, please email support@demostore.com with the subject 'Returns' and include your order number, name and the reason for the return.
  • Seller will provide the customer with instructions where to send returned goods. Customers are strongly recommended to get proof of postage when returning goods to avoid "lost packages" situations.
  • Please note that customers are responsible for shipping costs of returned items.
  • When returned item is received and inspected, customer receives a confirmation email, notifying about the status of the refund.
  • If the refund is approved, then it will be processed and a credit will automatically be applied to customer's credit card or original payment method shortly after

You can select your preferred payment method at checkout.

  • We accept secure payments for both local & international customers via Credit Cards, Debit Cards & PayPal.
  • We also accept offline payments via check & direct bank deposit in Country X and Country Z.
  • Cash on Delivery is available in city X, city Z and city Y, up to $X. 

Note that additional exchange fee may apply if your currency is other than US dollars.

This Privacy Policy governs the manner in which BrickWood Ovens LLC collects, uses, maintains and discloses information collected from users. This privacy policy applies to the site and all products and services offered by BrickWood Ovens LLC.

Personal Identification Information
We may collect personal identification information from users in a variety of ways, including, but not limited to, when users visit our site, register on the site, place an order, and in connection with other activities, services, features or resources we make available on our site. Users may be asked for, as appropriate, name, email address, mailing address, phone number, credit card information. Users may, however, visit our site anonymously. We will collect personal identification information from users only if they voluntarily submit such information to us. Users can always refuse to supply personally identification information, except that it may prevent them from engaging in certain site related activities.

Non-Personal Identification Information
We may collect non-personal identification information about users whenever they interact with our site. Non-personal identification information may include the browser name, the type of computer and technical information about users means of connection to our site, such as the operating system and the internet service providers utilized and other similar information.

Web Browser Cookies
Our site may use "cookies" to enhance user experience. User's web browser places cookies on their hard drive for record-keeping purposes and sometimes to track information about them. User may choose to set their web browser to refuse cookies, or to alert you when cookies are being sent. If they do so, note that some parts of the site may not function properly.

How We Use Collected Information
BrickWood Ovens LLC may collect and use Users personal information for the following purposes:

  • To improve customer service
    Information you provide helps us respond to your customer service requests and support needs more efficiently.

  • To personalize user experience
    We may use information in the aggregate to understand how our users as a group use the services and resources provided on our site.

  • To improve our Site
    We may use feedback you provide to improve our products and services.

  • To process payments
    We may use the information users provide about themselves when placing an order only to provide service to that order. We do not share this information with outside parties except to the extent necessary to provide the service.

  • To send periodic emails
    We may use the email address to send user information and updates pertaining to their order. It may also be used to respond to their inquiries, questions, and/or other requests.

How We Protect Your Information
We adopt appropriate data collection, storage and processing practices and security measures to protect against unauthorized access, alteration, disclosure or destruction of your personal information, username, password, transaction information and data stored on our site. Sensitive and private data exchange between the site and its Users happens over a SSL secured communication channel and is encrypted and protected with digital signatures. Our site is also in compliance with PCI vulnerability standards in order to create as secure of an environment as possible for users.

Sharing Your Personal Information
We do not sell, trade, or rent users personal identification information to others. We may share generic aggregated demographic information not linked to any personal identification information regarding visitors and users with our business partners, trusted affiliates and advertisers for the purposes outlined above.

Changes To This Privacy Policy
BrickWood Ovens LLC has the discretion to update this privacy policy at any time. We encourage users to frequently check this page for any changes to stay informed about how we are helping to protect the personal information we collect. You acknowledge and agree that it is your responsibility to review this privacy policy periodically and become aware of modifications.

Your Acceptance Of These Terms
By using this site, you signify your acceptance of this policy. If you do not agree to this policy, please do not use our site. Your continued use of the site following the posting of changes to this policy will be deemed your acceptance of those changes.

Information Correction And Deletion
If you believe the information we have is incorrect, please see the below contact information and notify us of any changes necessary to keep your data accurate. Additionally, if at any point you would like BrickWood Ovens to delete any information about you, please contact us via any of the below methods and we will promptly honor all requests.


Updated on 1.01.22

During checkout, you will be given the opportunity to "round-up" to the nearest dollar for charity with Change Commerce.  For example, if your order total is $283.24, you can round-up to $284.00 and donate the $0.76 to any of the charities listed below.


Wounded Warriors Family Support

Our mission is to provide support to the families of those who have been wounded, injured or killed during combat operations. The families of our casualties suffer in many ways: some financially, some psychologically. Wounded Warriors Family Support mitigates their trauma by allowing them to find peace and solace as a family once more in family-friendly resorts that we provide free of charge.


Alex’s Lemonade Stand Foundation

Alex's Lemonade Stand Foundation is an American pediatric cancer charity founded by Alexandra "Alex" Scott, who lived in Pennsylvania and suffered from neuroblastoma. The Foundation was started in 2005 by Alex's parents.


Lynden Christian School Endowment

The Lynden Christian School Endowment Fund exists to help provide Christian education for children and young people for generations to come. Without the help of the Endowment Fund, many parents could not afford Christian education. The earnings of the Endowment Fund are donated to the General Operating Fund of Lynden Christian thereby reducing tuition costs of all Lynden Christian families.


Updated 1/3/2021


High-Temperature Mortar – Low-Cost 4 Material Blend

High-Temp Mortar is basically the glue that holds all the brick and block together on all wood-fired ovens (and fireplaces). This simple and inexpensive high-temperature mortar recipe is used the world over. From Australia to Zimbabwe… we all make it the same way.

In a clean wheelbarrow or mixing tub, thoroughly dry-mix the (4) materials listed below in a 3:1:1:1 ratio.

  • 3 Parts Silica Sand
  • 1 Part Hydrated Lime
  • 1 Part Fireclay
  • 1 Part Portland Cement

Silica Sand –

Silicon is the 2nd most abundant element in the earth’s crust – so it should be easy to find bags of Silica Sand near you - right? Well, not so much. Pure Silica Sand (which is almost like powder) can be elusive. Some Landscape supply stores 422 carry this item – some don’t. But almost EVERY Pool Supply store does (it’s pool filter sand) Google.com/maps/search/Pool+Supply 155

image . image

Pool Filter Sand
Fine Sand
Fine Silica Sand (All mesh sizes)
(The Finer the Grain the Better)

All-Purpose Sand
Concrete Sand
Course Sand
Mason Sand
Medium Sand
Mortar Sand
Multi-Purpose Sand
Natural Sand
Play Sand
Sand / Topping

image . image

Fire Clay / Mortar Clay / Bricklayers Clay -

Pure Fire Clay, Mortar Clay and/or Bricklayers Clay is an organic material that has been dried and turned into a powder form. It is usually a brackish red / brown in color or it could be white / grey. The texture is like baking flour or baking soda.

These powdered clays can be found at most Masonry and Landscape Supply Stores 422 for about $10 - $15 a bag. You may find a bag at a Big Box store, but it’s unlikely. And you will never find fire clay at a Refractory Materials dealer.

If you can’t find a bag near you, be sure to check with your local Ceramic Supply Google.com/maps/search/ceramic 320 and they can order a bag of Fire clay for you.

If all else fails - we can always ship you a bag of Fire Clay 241.


Hydrated Lime / Powdered Lime / Construction Lime -

This is the product that confuses some of our customers. It is NOT granulated Lime that is sold in the plant section at Home Depot or Lowes but a white and fluffy material that looks and feels like powdered sugar. It is used in the masonry and landscape industry – but it also used in the Plant Nursery industry in 50lb bags.

If you are unable to find this product at your Landscape Supply, call a local Plant Nursery and they can order lime for you - Google.com/maps/search/plant+nursery 152


Portland Cement -

Portland Cement is sold at EVERY Big Box and most Mom & Pop hardware and lumber stores. It’s a staple in the construction industry… and it’s cheap! Just make sure you buy pure Portland Cement – NOT PORTLAND CEMENT WITH LIME PRE-MIXED INTO IT. That will throw-off the mixture of the high-temp blend.


Be sure to Download & Print this High-Temperature Mortar Recipe!
BrickWood Ovens Installation Instructions

Join the HOW TO MAKE HIGH TEMPERATURE MORTAR discussion on the BrickWood Ovens Forum!  

How to Make / Mix Perlite or Vermiculite with Portland Cement for Pizza Oven Insulation

Insulation is crucial in the walls of your home. It keeps your home warm in the cold winter months and cool in the hot summer months. It is equally crucial in your BrickWood Box. When you are baking in the LOWER OVEN, the insulation that is in the cinderblock helps retain the heat that was created when you fired the oven.

The insulation mix that is in the HEARTH SLAB (under the hearth slab firebricks) keeps the heat in the hearth firebrick. If you didn’t have the insulation mix in the hearth slab, the slab would absorb the heat from the hearth firebrick like a sponge absorbs water. This heat absorption would prevent the hearth firebrick from reaching their maximum heat retaining potential. And super-hot hearth firebrick not only radiate intense heat for hours (which is really helpful when BBQ’ing), but you will actually use less firewood compared to metal lined wood-fired BBQ’s.

The insulation mix in the UPPER OVEN (between the 2 rows of firebrick and the concrete panels) help retain the intense heat that is made during the pig roasting process – and retains the heat that is created during the smoking process (when the fire is made in the lower oven). As the smoke rises out of the smoker opening (which is the 13½” x 2½” hole in your hearth slab), the heat from the fire and smoke is retained in the upper oven firebrick which aids in the smoking / cooking process. If you didn’t have insulation between the 2 rows of firebrick and the concrete panels, the outside temperatures would cool the firebrick and your oven would be much less efficient.

image.png1329×323 870 KB

So where do you find Vermiculite or Perlite in your area? If your local MASONRY and LANDSCAPE SUPPLY 40 doesn’t carry 2cf or 4cf bags of Vermiculite or Perlite, you can also try your local PLANT NURSERY 9 as both minerals are used in potting soil to help retain moisture (it’s those little white balls in the potting soil). If that’s a no-go, simply jump over to the Uline.com 109 website (www.Uline.com/BL_3801 184) and purchase (2) of the 4cf bags of GRADE 2 or GRADE 3 Vermiculite. They will ship the Vermiculite to your home or jobsite. Their Vermiculite is always in stock and their prices are decent.

DO NOT go to your local Big Box hardware store or Plant Nursery and buy bag after bag of the small 8qt or 10 Liter bags of Vermiculite or Perlite. You would need over 200 of the 8qt bags to equal the 8cf bags of Vermiculite / Perlite that is needed for the construction of your BrickWood Box. If you see the words “Quart” or “Liter” on the bag – put it back on the shelf and look for 2 cubic foot or 4 cubic bags (like shown below).

perlite%20vs%20vermiculite3035×2927 2.32 MB

How to Mix the Vermiculite / Perlite and Portland Cement Insulation Blend -

VERMICULITE or PERLITE and PORTLAND CEMENT – Dry Mix 5 parts Vermiculite or Perlite - to - 1 part Portland Cement in a Mixing Tub or Wheelbarrow - (5 Gallons / Shovel - to - 1 Gallon / Shovel). Add just enough water to get the entire blend wet as you mix with a shovel or hoe (hoes are good for this process). DO NOT OVER WATER! There should be ZERO water puddling! Average drying time is about 5 - 6 days.

image.png649×572 249 KB

Join the Portland, Vermiculite, Portland Cement discussion on the BrickWood Ovens Forum!  

The frost line, also called frost depth or freezing depth, is most commonly the depth that the groundwater in soil is expected to freeze. The frost depth depends on the climatic conditions of an area, the heat transfer properties of the soil and adjacent materials, and on nearby heat sources. You have to have freezing weather for a while to have a deep frost line. - wikipedia

If you have a 28" frost line, you will need to build your base slab 28" below grade (“Grade” means “Ground Level”). If your frost line is at 28", you slab will need to be about 36" thick.

As for the need to building a base foundation… that is going to be your call. Several city / states require any load bearing structure be built on a frost line slab. Others city / states have no written law regarding frost line construction, so a standard 6" slab on 4" of gravel is fine.




Join the Frost Line discussion on the BrickWood Ovens Forum!  


Mattone Barile / Mattone Barile Grande - Possibly.  Many have done it.

Cortile Barile - Impossible.

Mattone Cupola - Ditto.