Discover our selection of refractory stones for HOSTEK pizza ovens, designed to replace cracked, broken or heavily worn deck elements.

HOSTEK offers several ranges of professional electric pizza ovens fitted with refractory baking surfaces. However, chamber dimensions, the number of refractory elements and the deck configuration may vary depending on the range and model.

For this reason, it is important to identify the exact oven before choosing a replacement stone.

Main HOSTEK Pizza Oven Ranges

The main HOSTEK oven families include:

• HOSTEK NEVO
• HOSTEK NEVO MAXI
• HOSTEK ESTRA
• HOSTEK OPTIMA WIDE
• HOSTEK DUAL
• HOSTEK DUAL WIDE

Depending on the series, ovens may have one or two chambers and different baking surface formats.

HOSTEK Oven Chamber Sizes

HOSTEK ovens are available with several chamber formats.

These dimensions refer to the oven chamber. They do not necessarily correspond to the dimensions of a single refractory stone.

In fact, the deck may consist of several refractory elements positioned side by side.

Refractory Stones for HOSTEK NEVO

The NEVO range includes chamber sizes such as:

• 660 × 660 mm
• 660 × 990 mm
• 990 × 660 mm

Some versions are also available with two chambers.

Therefore, when identifying the correct replacement stone, check:

• the dimensions of each individual element;
• the thickness;
• the number of stones per chamber;
• the number of oven chambers.

It is best not to rely only on the overall chamber dimensions.

Stones for HOSTEK NEVO MAXI

The NEVO MAXI range uses larger chamber formats.

Typical sizes include:

• 720 × 720 mm
• 720 × 1080 mm
• 1080 × 720 mm
• 1080 × 1080 mm

Depending on the model, the deck may consist of several stones.

Therefore, measure each element directly before ordering.

Stones for HOSTEK ESTRA

HOSTEK ESTRA ovens also use several chamber sizes, including:

• 720 × 720 mm
• 720 × 1080 mm
• 1080 × 720 mm
• 1080 × 1080 mm

Before selecting a stone, check the exact deck configuration.

Two ovens with similar chamber sizes may use a different arrangement of refractory elements.

Stones for HOSTEK OPTIMA WIDE

The OPTIMA WIDE range also includes several refractory chamber formats.

Common sizes include:

• 720 × 720 mm
• 720 × 1080 mm
• 1080 × 720 mm
• 1080 × 1080 mm

The baking surface must remain level. Therefore, it is important to match both the dimensions and thickness of each element when replacing a stone.

Stones for HOSTEK DUAL and DUAL WIDE

The DUAL and DUAL WIDE ranges use larger chamber sizes.

Typical formats include:

• 820 × 840 mm
• 820 × 1080 mm
• 1230 × 840 mm
• 1230 × 1080 mm

These larger baking surfaces may use several refractory stones.

Always check the number of elements installed in the chamber before determining the quantity required.

Single or Double Chamber

Several HOSTEK ovens are available in single- or double-chamber versions.

Double-chamber versions generally require each level to be checked separately.

Before ordering, verify:

• the number of chambers;
• the number of stones in each chamber;
• the dimensions of each stone;
• the thickness of each element.

This helps avoid quantity errors.

How to Choose the Correct HOSTEK Refractory Stone

Compatibility depends on more than just the oven brand or model.

You should also check:

• width;
• length;
• thickness;
• shape;
• stone position;
• number of elements;
• arrangement of the stones inside the chamber.

As a result, two HOSTEK ovens may use different stones even if their overall format appears similar.

Measure the Original Stone Directly

Whenever possible, measure the stone that needs to be replaced.

Record:

1. the width;
2. the length;
3. the thickness.

Then count the total number of refractory elements installed in the chamber.

This method is more reliable than relying only on the internal oven dimensions.

Oven Chamber Size vs Stone Dimensions

A 720 × 1080 mm chamber does not necessarily mean that one single stone measures 720 × 1080 mm.

The surface may be divided into several elements.

For example, several narrower stones may be positioned side by side to form the complete baking surface.

It is therefore important to distinguish between:

• chamber dimensions;
• individual stone dimensions;
• number of required elements.

Why Is Thickness Important?

Thickness plays an important role in the stability and level of the baking surface.

A stone that is too thick may sit higher than the surrounding elements.

On the other hand, a stone that is too thin may create a low spot.

In addition, thickness affects the thermal behaviour of the deck.

For this reason, the original thickness should be matched as closely as possible.

Replace One Stone or Several Elements?

If only one stone is cracked or broken, it may sometimes be possible to replace just that element.

However, inspect the neighbouring stones as well.

All elements are exposed to the same heating and cooling cycles.

Check in particular for:

• cracks;
• breakage;
• damaged edges;
• surface wear;
• differences in level.

This will help determine whether only one stone or several elements should be replaced.

Installation and Handling

Refractory stones withstand high temperatures. However, they remain sensitive to mechanical impact and thermal shock.

Before carrying out any work:

• allow the oven to cool completely;
• disconnect the electrical power supply;
• remove the old stones carefully;
• clean the support surface;
• inspect the neighbouring elements;
• install the new stone without forcing it.

Also avoid heavy impacts with the pizza peel.

Never pour cold water onto a hot refractory stone.

Checks Before Ordering

Before ordering a refractory stone for a HOSTEK oven, check:

• the oven range;
• the exact model;
• the number of chambers;
• the stone width;
• the length;
• the thickness;
• the number of stones per chamber;
• the position of the element to be replaced.

These checks greatly reduce the risk of ordering an incompatible stone.

Fast Shipping and Reinforced Packaging

Refractory stones are particularly fragile during transport.

For this reason, ACRIVI uses reinforced and highly protective packaging, specially adapted to refractory components.

In addition, we do our best to provide fast shipping, helping to keep professional oven downtime to a minimum.

Frequently Asked Questions

Which HOSTEK ovens use refractory stones?

Several HOSTEK professional oven ranges use refractory baking surfaces, including NEVO, NEVO MAXI, ESTRA, OPTIMA WIDE, DUAL and DUAL WIDE.

Are all HOSTEK stones the same size?

No.

Dimensions depend on the range, model, chamber size and deck configuration.

Do chamber dimensions correspond to the size of one stone?

Not necessarily.

A chamber may be fitted with several stones positioned side by side.

How do I find the correct stone?

First identify the exact oven model.

Then measure the width, length and thickness of the original stone directly.

Should I measure the chamber or the stone?

It is better to measure the stone itself.

The internal chamber dimensions refer to the overall baking surface and not necessarily to one individual element.

Do double-chamber ovens require more stones?

Yes, depending on the configuration.

Check the number of stones in each chamber before determining the total quantity.

Can I replace only one cracked stone?

Yes, provided that the other elements are still in good condition and the deck design allows individual replacement.

Why should I check the thickness?

A difference in thickness can create an uneven baking surface and alter the thermal behaviour of the deck.

Can I use a slightly larger stone?

No.

Even a small difference in dimensions may prevent correct installation.

Are refractory stones fragile?

Yes.

They withstand high temperatures very well, but they remain sensitive to mechanical impact and thermal shock.