Selected for durability, performance, and outdoor use.
Lava 40" Digital Wood-Fired Oven
The right-sized Pro-Series wood-fired oven for a serious outdoor kitchen without the 48-inch footprint.
Questions before ordering? Email our team and we’ll be happy to help.
Why this piece earns its place outdoors.
The fire is only the beginning.
Details, dimensions, and ownership.
What’s Included +
Specifications & Dimensions +
- Brand
- WPPO
- Product Name
- 40" Professional Lava Digital-Controlled Wood-Fired Oven with Convection Fan
- Series
- Pro-Series Lava Line
- SKU / Model
- WKPM-D100
- Product Type
- Digital-Controlled Wood-Fired Oven with Convection Fan
- Included Stand
- Black stand included
- Overall Dimensions
- 42" W × 42" L × 58" H
- Heat Circulation
- Convection fan
- Insulation
- Thermal guard insulation and thick fire blanket
- Cooking Surface
- Cut and polished volcanic stone, also known as lava
- Construction Materials
- Volcanic stone, refractory cement, 304 stainless steel, thick steel inner shell, mosaic tile, and lava-rock aggregate
Shipping, Returns & Warranty +
Manuals & Documents +
Frequently Asked Questions +
What are the outer dimensions of the WPPO Lava 40? +
The Lava 40 measures 42" W × 42" L × 58" H overall. These dimensions include the black stand supplied with the oven.
Is the black stand included, or do I need to buy it separately? +
The black stand is included. The Lava 40 arrives as a complete elevated setup, so no separate base purchase is required.
What fuel does the WPPO Lava 40 use? +
The Lava 40 is a wood-fired oven that uses wood as its heat source. WPPO advises against using driftwood, coal, plywood, or wood containing binders that may burn at excessively high temperatures, as these materials can damage the oven and void the warranty.
What is the cooking surface made from? +
The cooking floor is made from cut and polished volcanic stone, also known as lava. It is not ceramic or composite. This signature material of WPPO’s Lava Series supports authentic, high-temperature wood-fired cooking.
What does the convection fan do? +
The convection fan circulates heat throughout the oven chamber, helping reduce uneven hot spots across the cooking surface. It also supports consistent heat maintenance and makes it easier to reignite the flame when needed, allowing you to spend less time managing the fire and more time cooking.
What materials is the WPPO Lava 40 built from? +
The Lava 40 is constructed from volcanic stone, refractory cement, 304 stainless steel, a thick steel inner shell, mosaic tile, and lava-rock aggregate. These materials support heat retention, durability, and the distinctive appearance of the Pro-Series Lava Line.
How does the insulation system work? +
The Lava 40 uses a two-layer insulation system consisting of thermal guard insulation and a thick fire blanket. Together, these layers help retain heat during long cooking sessions and large gatherings while supporting consistent cooking conditions.
What is the SKU or model number for the WPPO Lava 40? +
The model number is WKPM-D100. Use this model number when contacting CALDORAS or WPPO regarding parts, warranty service, or compatible accessories.
What is the difference between the WPPO Lava 40 and the Lava 48? +
Both ovens belong to WPPO’s Pro-Series Lava Line and feature convection-fan heat distribution, a volcanic-lava-stone cooking surface, and dual-layer thermal insulation. The main differences are their size and footprint. The Lava 40 measures 42" W × 42" L × 58" H, while the Lava 48 measures 48" W × 48" L × 62" H. The Lava 48 offers a larger cooking footprint, while the Lava 40 may be better suited to outdoor kitchens with more limited space.
What does WPPO’s warranty cover on the Lava 40? +
The Lava 40 is covered by WPPO’s 1-year warranty from the date of shipment and is honored directly by WPPO. Coverage includes the oven body, floor, ventilation, finishes, stand, door, internal dome welding, and accessories against manufacturing and material defects. Exclusions apply; review the owner’s manual for complete warranty terms.