| 1954 |
Foundation of DemirDöküm. |
| 1955 |
DemirDöküm joined to Koç Group. Foundation of Silahtarağa İstanbul facility. |
| 1956 |
License Agreement with Deutsche Eisenwerke AG, Hilden. |
| 1958 |
Production of Hilden type cast iron radiator. |
| 1962 |
Production of Sliced cast iron boiler. |
| 1963 |
Production of Instantaneous gas water heater and LPG-burners with Junkers Germany license. |
| 1964 |
Production of Chappe type cast iron radiator with column by means of Societe Generale de Fonderie license. |
| 1968 |
First cast iron radiator export to Jordan . |
| 1972 |
Steel Radiator Production. |
| 1976 |
Foundation of Bozüyük-Bilecik facility. Foundation of Ardem Company as partner of Arçelik Company for the sake of producing household kitchen ovens. |
| 1979 |
Production of steel and panel radiators and instantaneous gas water heaters in Bozüyük facility. |
| 1980 |
First cast iron radiator (column type) export to Italy . |
| 1982 |
Production and export of per-column type cast iron radiator. Production of Ridem type cast iron radiator |
| 1983 |
Termination of household kitchen oven and cooker production in Silahtarağa-İstanbul facility. |
| 1985 |
Moving the Instantaneous gas water heater facility to Bolu. |
| 1986 |
Hydro-for production under license of Gustavberg / Sweeden. Panel radiator export to United Kingdom and Germany . |
| 1987 |
Agreement for Burner Production with Elco / Switzerland license. Hydro-for production in Bolu facility. Production of new instantaneous gas water heater range |
| 1988 |
Commencement of cast iron radiator production in İnegöl Foundry. Production of kitchen oven, boiler, burner, circulation pumps and water heaters with solid fuels in Bolu facility. Closing the Silahtarağa facility. Making License Agreement for Wall hung gas boilers Production with Saunier Duval / France. |
| 1989 |
Reorganization of Heat Information Centrums. Agreement with Elco for production of all burner types. |
| 1990 |
Technical Agreement with Tasso - Denmark company for cast iron boiler. Ready-made kitchen agreement with Alno / Germany company. Commencement of Wall hung gas boilers production. |
| 1991 |
Investment for cast iron boiler production in İnegöl facility. Incorporation of Merkez Ticaret Inc. Co., sales company, with DemirDöküm company. |
| 1992 |
Commencement of cast iron boiler production İnegöl facility. Additional investments for Wall hung gas boilers. |
| 1993 |
Commercial agreement with Grundfos / Denmark for circulation pump. New type panel radiator investment and increasing production capacity. New type electrical storage water heater production. |
| 1994 |
Commencement of new panel radiator production in Bozüyük new panel radiator factory. |
| 1995 |
Opening sales office and warehouse for Panel radiators in Dresden / Germany. Transferring its production from Bolu facility to the other two facilitys. |
| 1996 |
Investment for increasing production capacity of Panel radiator. Entering into air-conditioner market. |
| 1997 |
Investment for increasing production capacity of panel radiator. Equipping the Laboratory and Industrial Design Department with latest technology. |
| 1998 |
Commencement of kitchen production in İnegöl facility. Investment for increasing production capacity of panel radiator. Air-conditioner Investment Partnership Agreement between LG and Arçelik. Chappee Agreement for cast radiator export. |
| 1999 |
Headquarter of Türk Demirdöküm Fabrikaları Inc., Co. has been moved to İnegöl, where the company had two production facilitys, on the first November 1999. |
| 2000 |
Reorganization studies. Passing through 10 years guarantee for Panel Radiator. Commencement of the first Digital electrical storage water heater production in Turkey. |
| 2001 |
Foundation of Panel Inc., Co. transferring 50% of Panel Inc. Co.'s shares to Beko UK Ltd. located in United Kingdom. Establishing new sales points by means of TABYS (Sub-seller Reorganization System) project. Making first exports to Chine and Chile. Production of the first 7G-Instantaneous gas water heater having 7 Safety Systems. Nostalgia cast radiator production. Production Central Heating Boiler with solid fuel. Optima Plus wall hung gas boilers production. Production of Instantaneous gas water heater having capacity of 5 lt/minute. |
| 2002 |
Signing strategic cooperation agreement with American YORK on the air-conditioner system. Ensuring E-conversion project to become widespread. Making joint-venture agreement with Chung Mei Industries Ltd., (Hong Kong) company and establishing an electrical-oil filled radiator production company in Chine. Production of DKY Plus Central Heating Boiler with solid fuel. Conversion of Cast Radiator Factory to a new and separate company under the title of "Demrad Inc., Co.". |
| 2003 |
Foundation of DD Heating Ltd. Company in Bedford, United Kingdom. Foundation of Tianjin Demrad International Trading Co.Ltd. (Demiladi) in Tianjin-Chine with partnership of Ram Pacific Company. Foundation of Dongguan Dei Chung Company in Chine. Commissioning the Customer Communication Centrum (MİM). Production of Aden wall hung gas boilers. Production of Sargon Condense'in, which is the first condensed wall hung gas boilers of Turkey. Opening the Rep Office in Russia. |
| 2004 |
Celebration of the 50th Anniversary of Demirdöküm Company. Commencement of oil radiator production in Dongguan Dei Chung - Chine. Integration of Blomberg Boyler factory to Bozüyük facility. Increasing capacity of Panel Inc., Co. |
| 2005 |
Production of new Quatech/Artech/Solitech cast iron sectional boiler The first design flat type panel radiator production The first decorative panel radiator production The start of Panel Inc.,Co. 5.5 million/meter investment Purchase of entire production facility of Schaefer Company and the brand ''Fix'' |
| 2006 |
Cooperation agreement with German Company Rabien Energy in the domain of microcogeneration units. Opening Ceremony of DemirDöküm Panel A.Ş. additional factory. Cooperation agreement with German Company Solitem, on solar energy supported heating and cooling project. |
| 2007 |
Transfer of Koç Holding's 72.56% shares in DemirDöküm to German Vaillant firm for 212.9 million Euros. The Assignment of 99.9 % of the shares of DemirDöküm in Demrad Döküm Ürünleri Sınai ve Ticaret A.Ş. to Koç Holding. |
| 2008 |
Headquarter of Türk Demirdöküm Fabrikaları Inc., Co. has been moved from İnegöl to Çengelköy İstanbul on the seventh of February 2008. |
| 2008 |
The start of air-conditioner production at Bozüyük facility on the 29th of May 2008 |