174, Europe Blvd, Sofia, Bulgaria
+359 2 925 05 99

TANGRA - Ventilation * Heating * Air Conditioning

TANGRA HVAC building systems  


TANGRA HVAC certificatesTANGRA was founded in 1989 and specializes in manufacturing and installing ventilation, heating and air-conditioning equipment. Our operations include two industrial sites with a total floor area of 8000sq.m., a research and development department, an HVAC laboratory, and retail outlets in Sofia, Varna and Burgas. The company’s portfolio  also includes an in-house designer bureau and installation department, as well as a sister company specializing in the manufacturing of sheet metal works – “BG steel” LLC.  

   * Research and development: A team of highly-qualified specialists is in charge of new product development, including material design, production and implementation. Tests and research are performed in a state-of-the-art aerodynamic laboratory.  

   * Design department: Engineers specialized in HVAC systems design and project management are in charge of executing projects from the drawing board to project completion and customer satisfaction.  

   * Industrial enterprises: Both factories are equiped with specialized detached industrial units which produce:
- Air handling and heat recovery ventilation units
- Fans, fan coils and ventilation equipment 
 Ventilation grilles and diffusers
- Ventilation elements and air duct systems
- Pellet boilers  

   * Installation activity: TANGRA has divisions which specialize in the installation of: 
- Ventilation systems
- Air conditioning systems
- Heating systems

   * Trade list: Our company is an authorized representative of: 

- Soler & Palau Ventilation Group (Spain) – domestic and industrial fans
- TononForty (Italy) – air-conditioning equipment
- Hitachi Air conditioning – air-conditioning equipment
- AFS (Turkey) – flexible ducts
- Nederman (Sweden) – systems for local extraction
- R.T.V. Coils (Italy) – heating and cooling coils  


    * Quality: TANGRA’s  Quality Management System is ISO 9001 certified. We work hard to maintain high standards of data monitoring and reporting, which help ensure the highest levels of quality as well.   The experience accumulated so far and the fruitful cooperation with leading European manufacturers has helped us to develop a wide range of ventilation and air-conditioning equipment with excellent quality. The products and services we offer, our permanent stock and the wide distribution network we possess form the basis of great customer service and partner engagement.

 We believe that satisfied customers are the best form of advertisement!



Dipl. Eng. July Armianov










Dipl. Eng. July Armianov
/General Manager/ 



Manufacturer of energy efficient air-handling solutions & technologies
to save energy and reduce
utility costs

Browse through our portfolio of AHU products and solutions here