Türk Tesisat Mühendisleri Derneği
Turkish Society of HVAC and Sanitary Engineers


TTMD was founded in 1992 to develop the services given by Mechanical Engineering for heating, cooling, refrigeration, ventilation, plumbing, insulation, fire safety, energy efficiency and water treatment. Currently, TTMD is one of the eldest non-governmental organizations (NGO) in Turkey having more than 2000 professional members of engineers, architects, designers, manufacturers, contractors, academicians, policymakers in the field of design, contracting, building services, capacity building & education, energy efficiency and environment.

TTMD's head office is located in Ankara. There are two branch offices in Istanbul and Izmir. There are 18 provincial representatives in various provinces of Turkey. There are a total of 5 employees in the offices, but the provincial representatives, the volunteers in these provincial representative offices and the members of the board of directors work together with the office team.

TTMD carries out many co-operations with universities and high schools, industry, research institutes, governmental bodies, NGOs and other professional expert groups for the objectives of creating living and working spaces which are environmentally friendly, utilizing the energy more efficiently and having more sustainable systems and installations in it. TTMD has also collaborative works with other NGOs as being a member of Council of Climatization which is one of the Councils of TOBB.

TTMD develops and supports R&D projects within the framework of university-industry cooperation, takes active part in the preparation of standards and regulations, cooperates with public bodies in the preparation of regulations thus contributing to their conformity with the norms, develops and operates national and international projects (funded by EU, FCO, etc.), and continues its publishing and educational activities in the sector.

TTMD also facilitates knowledge and technology transfer and harmonizes guides via Technical Committees which are Digitalization, Commissioning, Indoor Environment Quality, Covid-19, Building Performance Simulation, Energy Management, Energy Storage and Heat Pumps, Equality, Water, Young Professionals and CWEEL.  

TTMD represents the Turkish engineers and architects in international platforms and keeps contact with international professional organizations, follows the technological developments and transfers knowledge to its members and society. TTMD has become a member of AASA (ASHRAE “American Society of Heating, Refrigerating and Air-Conditioning Engineers” Associate Society Alliance) in 1997, of REHVA (Federation of European Heating and Air Conditioning Associations) in 2000, of CLIMAMED (Joint Organization of HVAC&R Associations of France, Italy, Portugal, Spain) in 2009 and of EHPA (European Heat Pump Association) in 2021. As being Turkish Chapters, TTMD also represents and cooperates with IBPSA (International Building Performance Simulation Association) since 2018 and AEE (The Association of Energy Engineers) since 2019.

Moreover, TTMD has been appointed to represent Republic of Turkey in International Energy Agency (IEA) Solar Heating and Cooling Technology Collaboration Programme (IEA SHC TCP), IEA Energy Conservation through Energy Storage Technology Collaboration Program (IEA ECES TCP) and Energy in Buildings and Communities Technology Collaboration Program (IEA EBC TCP) by the Ministry of Energy and Natural Resources, Turkey.

In addition to the seminars, webinars and courses regularly organized, TTMD brings professionals in its annual workshops, symposiums and congresses, publishes journals, books, and manuals containing recent information, develops projects targeting to combat against climate change, energy efficiency, Nearly Zero Energy Buildings and takes part actively in regulatory and standardization works. TTMD regularly holds “International HVAC+R Technology Symposium” and “International Sustainable Buildings Symposium” bi-annually and also at least one workshop annually to discuss a selected topic in detail with actors of the sector. TTMD also organizes the biggest HVACR EXPO of the Region in cooperation with other industry associations bi-annually. In addition to these, TTMD participates in domestic and international fairs and congresses regarding the sector and also supports the dissemination and publication of such activities. A powerful tool, namely “TTMD Journal”, has also being published quarterly, which aims professional development and capacity building of technical personnel in various subjects. TTMD publishes books and manuals for supporting capacity building of technical professionals. Hence, TTMD actively involves in educational activities through publications and also by implementing training programs and seminars via TTMD Academy. TTMD society always helps and supports cooperation among its members and colleagues by bringing them together in various platforms and activities.



  • ABOK
  • VDI


  • REHVA Member
  • ASHRAE Associate Member
  • CLIMAMED Member
  • IBPSA Turkish Chapter
  • AEE Turkish Chapter


Number of issues/ year: 6
Number of copies per issue: 3250


TTMD publishes wide range of guides, books and translated standards.

Total number of publications: 38


Number of training events/courses per year: app 100 seminars (free of charge)

Total number of participants per year: over 7.000


International Conference:

14th International HVAC+R Technology Symposium, 01-03 April 2019, Istanbul, Turkey.


TTMD leads many co-operations with universities, industry, research institutions and other professional expert groups for the objectives of creating living areas which are environmentally friendly, utilizing the energy more efficiently and having more sophisticated buildings and installations in it. Doing this, TTMD carries out the information and technology transfer. 

TTMD involved in several projects (FP7 funded, etc.) and promoted closer links with a view to increase the impact of the technologies developed across multiple areas. The projects TTMD involved in include: 

  • HIP: “development of low-cost, lightweight highly insulating polymers for refrigerated transport, heating and cooling installations” (FP7)

  • AquaConserver: “a novel and combined domestic grey water and heat recovery system suitable for cost effective installation in 90% of European households” (FP7)

  • SmartHeat: “modular platform technology for domestic heating and hot water systems that enables the cost-effective integration and efficient operation of RES”(FP7)

  • CSOContribution2SCP (Action Town): “Partnering to Enhance Civil Society Organizations’ Contribution to Research in Sustainable Consumption & Production” 

  • Climate Platform: “Full Support to the Private Sector in Transition to Low-Carbon Economics”

  • Training Youth for Green Jobs: “Training Youth and Promoting Youth Employment on Energy Efficiency in Buildings”  

  • From Hero to Zero: “Wise Energy Use Volunteering Scheme for Youngster”

  • iCoins: “Industry 4.0 competences for SMEs – Awareness raising tools''

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