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Thermowell di Renato Napoli

Via U. Foscolo, 8, 73010 Surbo
Telephone +39 083 2300214
Fax +39 083 2300214

Hall map

boot 2020 hall map (Hall 10): stand C68

Fairground map

boot 2020 fairground map: Hall 10

Our range of products

Product categories

  • 03  Shipping / Yachting Equipment and Accessories
  • 03.04  Heating / Air Conditioning
  • 03.04.01  Air Conditioners

Air Conditioners

  • 03  Shipping / Yachting Equipment and Accessories
  • 03.04  Heating / Air Conditioning
  • 03.04.02  Boat Heating Systems

Boat Heating Systems

  • 03  Shipping / Yachting Equipment and Accessories
  • 03.04  Heating / Air Conditioning
  • 03.04.03  Dehumidifiers


  • 03  Shipping / Yachting Equipment and Accessories
  • 03.04  Heating / Air Conditioning
  • 03.04.04  Ventilation


Our products

Product category: Air Conditioners


IZY is the exclusive product which allows an easy DO-IT-YOURSELF installation of an air conditioning system inside each kind of boat. The self contained refrigerating unit makes IZY unique in the marine air conditioning market and its installation accessible also to people without technical background. High performance compressor, copper-nickel tube in tube corrosion resistant heat exchanger, direct expansion evaporator, sea water pump and all electrical components are all built into a stainless steel case internally covered for noise reduction. IZY is available in three arrangements, 9.000, 13.000 and 16.000 Btu/h, both in cooling only or cooling/heating version (CO and EH respectively).
EH version allows also the heating of the ambient through an electric resistance; in this way, unlike reversing cycle systems, the heating operation is not affected by the lower sea water temperature reached during winter season, thus obtaining 100% heating efficiency also with sea water temperature below 10°C. All models are equipped with a back-lighted digital wall mounted and remote infra-red controller. Digital controller is connected to the air conditioner through a 15 m long electric cable. IZY09 can be connected up to 2-3 air outlets; IZY13 and IZY16 can be connected up to 3-4 depending on the total lenght of the various air ducts.

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Product category: Ventilation


FC series of fan coils, also named air handler, are properly designed for marine applications. They can be easily ducted in order to distribute  the air into the ambient from several points (air outlets). These models are suitable for installation in the lower part of the vessel, inside a cabinet or under a sofa or a bed. 

FC models consist mainly in the following components: finned coil (water/air heat exchanger), high pressure centrifugal blower(s) equipped with internal high efficiency motor, deep stainless steel drain pan equipped with two holes for drain discharge, bleeder valve, fresh water inlet and outlet connection. Available in 7 sizes ranging from 5.000 to 24.000 BTU/h; FC18 and FC 24 models are equipped with two blowers.

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Product category: Dehumidifiers, Ventilation


The range of products designed for air treatment inside the vessels includes air handling units (or fresh air units) and air extractors. Air handling units allow the external air to be treated (cooled, heated, dehumidified) before entering the ambient of the vessel. Air handling units are available as standard in 4 sizes from 300 up to 1400 mc/h.

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About us

Company portrait

Our story is italian. In the 80s, Renato Napoli, industrial expert, specialized in RHVAC production, installation, design, engineering and consultancy. He improved his background and obtained a good business reputation. In 1997 he entered the world of entrepreneurship and founded Thermowell, the manufacturer of marine HVAC.

First years, first exciting business challenges, important commission and participation at the international marine shows. In 2010, Renato’s son Mattia, proud of the value that Thermowell represented in the marine industry, began to work within the company firstly in the production department and recently in the management.

Thermowell solves problems of temperature on board and creates value working as partner and supplier of air conditioning, ventilating, refrigerating systems. Technology research, innovation studies, choice of high quality materials, italian manufacturing and know-how are the business principles.

Whoever buys, designs, builds and handles leisure, governative and commercial boats and yachts can trust THERMOWELL: innovation, customisation and competitiveness at service of the comfort on board.

Thermowell has today a consistent distribution in the italian and european marine market, endlessly invest in product and process R&D, enhance the online presence and can do business without a qualified production and management team under the leader and CEO Renato Napoli.

Consultancy for shipyards and naval designers, customisation and production for single projects, production range of innovative and traditional RHVAC systems are the strong points of Thermowell. For the future, new ideas to be turn into reality are in progress to satisfy the needs of the marine industry.