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Göbek Taşı (Heated Stone): Selection, Heating System and Care

Göbek Taşı (Heated Stone): Selection, Heating System and Care

We focus on the göbek taşı, the heart of the hammam: correct stone selection, under-stone heating systems, proper dimensions and maintenance methods for long-lasting use, step by step.

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Project Manager · Mechatronics Engineer · Çilek Havuz

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Turkish Bath

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We focus on the göbek taşı, the heart of the hammam: correct stone selection, under-stone heating systems, proper dimensions and maintenance methods for long-lasting use, step by step.

Short answer

The navel stone is a large heated marble platform rising in the middle of the bath and is the heart of the bath experience.

The guest lies on this stone, the soft and dry heat radiating from the stone warms the body from the inside. The muscles relax, this warmth combined with the humidity of the environment creates the serene atmosphere specific to the bath. The main element that makes a bath a bath is often the correct design of the belly stone.

For this reason, it is necessary to treat the core stone not as a superficial decorative element, but as a heating surface that must be carefully engineered. Type of stone, thickness, type of heating system underneath and maintenance of the surface. It determines both how evenly the heat spreads and how the stone lasts over the years. What follows covers the navel stone only: choosing it, heating it and looking after it.

Short answer

The most common choice for navel stone is marble, because marble is a material that absorbs heat slowly and maintains it for a long time, warms the skin softly and aesthetically suits the bath.

It is important that the stone can conduct heat regularly and be smooth enough to not disturb the skin. Whether the surface feels pleasant to the touch depends on the harmony between the thickness of the stone and the underlying heating system.

Porosity is a determining criterion in stone selection. A very porous stone can absorb water and sweat, stain it over time, and make hygiene difficult. On the other hand, stones with a denser texture and lower water absorption rate both remain cleaner and keep the heat more stable. We would like to remind you that the color and vein pattern are largely an aesthetic choice, and what is really important is the thermal behavior and durability of the stone. Together, we determine the right stone according to the intensity of use and design of your bath.

Short answer

The heat of the navel stone comes from underneath, not from the surface.

The first of the two most common methods is water pipe heating: hot water passed through the pipe serpentine laid under the stone distributes the heat evenly throughout the entire mass of the stone. This method is preferred in large and constantly used baths. The heat becomes soft and homogeneous, the large mass of the stone stores the heat and provides a stable temperature. The system must be planned with a hot water source.

The second method is electric heating: electric resistors placed under the stone heat the surface. Since its installation can be simpler, it can be considered especially in small-scale applications or applications where water pipe installation is difficult. Which method is suitable for you. It depends on the size of your bath, frequency of use, your existing heating infrastructure and energy preferences. Within the scope of Turkish bath systems, we size both solutions according to your facility and design them to ensure even heat distribution on the stone surface.

Short answer

The size of the navel stone is directly related to the size of the bath and how many people will use the stone at the same time.

The stone should be wide enough to lie on comfortably. It should be positioned in a way that does not hinder circulation in the middle of the bath and leaves a space around it where users can move freely. While a stone that is too small restricts the experience, a stone that is too large for the space makes circulation difficult and increases the heating cost unnecessarily.

The height of the stone also determines comfort. A level that will make it comfortable to lie on and sit on is selected. Since the amount of stone that the heating system needs to heat increases as the mass increases, the size decision is directly related to energy and recovery time. For this reason, we determine the size of the core stone not randomly, but together with the area of your bath, the number of users you target and the heating capacity. A correctly proportioned stone maintains both comfort and efficiency at the same time.

Short answer

Since the navel stone is a surface that is constantly hot, humid and in contact with the skin, regular care significantly extends its life.

Rinsing the surface and removing sweat after each use prevents residue accumulation in the pores of the stone. Non-acidic products suitable for the structure of the marble should be used for cleaning. Acidic substances such as lemon and vinegar can dull and corrode the marble surface over time. Gentle cleaning with a soft cloth preserves the shine of the stone.

In long-term maintenance, periodically treating the marble with a suitable protector protects the surface by reducing water and stain absorption. Checking the joints and stone and floor joints allows you to detect early water leakage and moisture accumulation that can damage the underlying heating system. A neglected hub stone loses its aesthetics and may cause hygiene problems. With regular and proper care, your hub stone will maintain its first-day comfort for many years.

Short answer

Core stone is a integrated decision that requires stone selection, heating method and size to be designed in harmony with each other.

Choosing one of these three elements independently of the others often results in loss of either comfort or efficiency. For example, pairing a large stone with an inadequate heating system will result in the stone never reaching the desired temperature evenly. That's why it's important to consider decisions together from the beginning.

In the bath projects we have been carrying out since 1993, we design the core stone specifically according to the usage profile of each facility. When you share with us the size of your bath, your intended usage intensity and your energy preferences. Together, we determine the type of stone, heating method and size suitable for you, and create your road map for a long-lasting and comfortable navel stone.

Next step

Let us discuss your project in the way that suits you best.

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// 01 · Related service

The work in this article, we deliver from design to handover.

Turkish Hamam Construction

Çilek Havuz service

Turkish Hamam Construction

Turkish hammams with a heated navel stone and marble craftsmanship.

Turkish hamam construction combines waterproofing and insulation, a heated navel stone and underfloor heating, steam and ventilation systems and marble craftsmanship in one project. A turnkey hamam takes weeks to months, by size and marble detail.

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How we work

  1. 01Initial meeting and site surveyWe inspect the site and listen to the brief.
  2. 02Design and quotationWe give the cost item by item, in writing.
  3. 03ExecutionThe same team builds to a written schedule.
  4. 04Handover and commissioningWe start the systems and explain their use.
  5. 05Maintenance and technical supportWe provide periodic maintenance and support.

// 02 · Guides

On Turkish Bath, more articles to read.

First the articles directly related to this one, then the newest articles on the topic.

All turkish bath articles

// 03 · Company & Contact

To talk about your project, call or write to us.

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Çilek Havuz

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1998 · Istanbul

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Çilek Plaza, Eyüp Sultan Mah. Yakacık Cd. Feshane Cd. No: 2 D:4 D:1, 34885 Sancaktepe / İstanbul

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All of Türkiye · exports to 14 countries

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Kyrgyzstan · Egypt · Algeria · Iraq

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At our showroom in Çilek Plaza, Sancaktepe, you can discuss your project with our team. We recommend booking an appointment by phone before your visit.

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Frequently Asked Questions

About Göbek Taşı (Heated Stone), frequently asked questions.

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The navel stone should be kept at a comfortable, balanced temperature that is not scorching. It is a sitting and lying surface in contact with the skin. The aim is to warm the body softly and from the inside. The temperature is set by the thermostat or control unit of the underlying heating system. Since the comfortable temperature can vary according to personal perception, we recommend that you install the heating system in a way that can be precisely controlled.

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Since the navel stone is a large surface, it is often created by precisely combining multiple marble slabs. The important thing is to make the joints waterproof and properly. Poorly constructed joints can lead to water leakage and moisture damage to the underlying heating system. We recommend that you pay attention to the workmanship of plate joints and joints and carry out the work with an experienced team.

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Since the navel stone is a large mass, it takes time to reach the desired temperature. Especially in water pipe systems, stone absorbs heat slowly and retains it for a long time. It is common in commercial baths to preheat the stone according to usage hours and keep it at a balanced temperature throughout the day. For home use, delayed heating planning makes the stone ready for the time you will use it. It is energy efficient to set up the heating scheme according to your usage profile.

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The system should be designed for easy maintenance and intervention at the design stage. The heating coil or resistors are hidden under the stone, so access must be planned in advance. A minor malfunction in a poorly planned installation may require removal of the stone. For this reason, we recommend that you design the heating infrastructure in a way that it can be accessed with minimal intervention when service is required in the future.

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Cracks are often associated with uneven or excessive heating, inadequate substructure support, or inappropriate stone selection. Yellowing and dulling may be caused by acidic cleaning products and moisture absorption. Most of these problems can be prevented with the right stone selection, balanced heating and neutral cleaning products. Determining the cause of early detected cracks allows the problem to be eliminated before it spreads.

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The comfort of the navel stone comes from the balance between the dry, soft heat radiating from the stone and the steam and humidity of the room. The heat of the stone creates the experience not alone, but together with the bath atmosphere. For this reason, the heating of the stone should be planned in harmony with the general heating and steam system of the bath. For a integrated balance, we recommend that you install stone, ambient heating and steam system together.

Çilek Havuz Corporate