- About us
- Company details
Styleboiler has many years of experience in the field of equipment for hot water production. In 1987 Marco Giona founded the company in Verona, starting the production of electric and gas water heaters and developing expertise and skills in this sector.
Even if Styleboiler roots are in Europe, nowadays it operates all over the world, offering an extensive range of electric, gas, storage water heaters and indirect cylinders with glass lined steel or stainless-steel tanks and a complete range of heat pumps.
Over the years the company has invested and diversified in manufacturing a wide range of storage tanks, developing demanding markets such as Switzerland, Germany and North America. The elephant in the STYLEBOILER logo symbolizes strength and durability. Just like the elephant, known for its resilience, STYLEBOILER’s large, robust tanks are designed to endure extreme conditions and offer long-lasting performance. Despite their size, they are a symbol of reliability and power, ensuring optimal comfort over time.Styleboiler is continuously investing in and focusing on development of its cylinder products range and renewable technologies.
The excellent quality of Styleboiler products is the result of an accurate design process combined with the use of advanced technologies, the ability in the welding and glass-lining processes and the manufacture of stainless steel products.
Year of establishment:
2014
Number of employees:
FROM 100 TO 499 EMPLOYEES
Annual turnover:
over 25 milion Euro
Reference year of turnover:
2023
Export turnover:
From 15 to 50 million Euro
Activities:
Manufacture of central heating radiators, steam generators and boilers
Manufacture of steam generators
Manufacture of electric domestic appliances
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Styleboiler is a brand of GIONA HOLDING, a leader company in the field of equipment for hot water production. Styleboiler is committed to bringing the best hot water solutions to families, business and professional users and costumers around the world through its innovative products.The management system of Design, manufacture, sale and service of electric, gas, solar equipments for the production and/or storage of hot sanitary water and heat pumps with inox, vitrified and teflon coating tank; trading of related accessories is conform to the Quality Management System standard (ISO 9001:2015)
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Company:
GIONA HOLDING S.R.L.
Web site:
Address:
VIA APOLLO 11
City:
ZEVIO (VR)
Zip Code:
37059
E-commerce:
Social media:
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Stainless steel indirect cylinders are made using technology that guarantee maximum quality and durability owing to the use of special materials and sophisticated technological advances such as “TIG” and “Plasma” welding.

To guarantee product excellence, we perform rigorous checks throughout our production process. These include tests on incoming materials using an X-ray scanner, 100% water-tightness tests for every tank, and thorough evaluations at intermediate stage.
Vertical single coil storage indirect cylinders are designed to be combined with any wall-hung boiler for the production of large quantities of hot water despite space restrictions. The high efficiency thick isolation in PU has led us to reach class A, for maximum energy saving.

Styleboiler’s goal is the constant improvement of the performance of our products, and to ensure the quality of sanitary water, it is essential to apply an internal treatment to the tanks.
Our hot water heaters are lined with food-grade inorganic glass porcelain (ENAMEL), applied at 860°C according to the DIN 4753 method. But the true highlight is the vitrification system, based on the exclusive “BLUE GLASS 4753”.
This treatment not only prevents corrosion and contamination but ensures superior durability of the tanks. This advanced technology protects against corrosion, contamination, and offers a series of unique advantages:
Certified protection:
The tank’s internal coating creates a clean and safe environment for sanitary water, proven by WRAS certification and KTW-BWGL conformity certification.
Material safety:
Our treatment includes antimicrobial technology, used and tested in a wide range of ACS products for over 50 years, ensuring the absence of toxic or harmful substances that could affect health.
Extra durability:
Thanks to a highly specialized tank coating, the water heater is protected from the corrosive effects of water, ensuring an exceptionally long lifespan.
The mixture used is unique and not available commercially. Each individual ingredient is selected with extreme care and mixed with expertise and attention, using methods perfected through decades of research. This process takes place exclusively within our facilities in Italy, where every stage is meticulously controlled to ensure exceptional results.
The “BLUE GLASS 4753” formula is the result of decades of research and development to create a unique eco-sustainable enamel. It represents a safe solution both for personal health and environmental protection, as it contains no nickel, one of the most common metals that can cause allergic reactions. Even in small amounts, the presence of nickel could contaminate water, with the risk of health problems such as asthma, respiratory issues, and, in rare cases, chronic nickel toxicity.
Styleboiler is the only company offering the “BLUE GLASS 4753” glass porcelain coating, combining artisanal tradition with technological innovation, confirming the excellence of “Made in Italy” in the field of internal treatment of ACS tanks for over 50 years.