Heating - Cooling - Ventilation Importers, Germany Import Companies

I'm looking for tankless water heater .

I'm looking boilers (water heaters) I work for a German e-commerce company and we sell a lot of household electric boilers We want to find manufacturer in Turkey which have or can make boilers we sell in Germany

We are looking for a supplier for a water heater with some special requirements regarding dimension, connections, isolation, material, water inlet etc.