Hello friend, My name is Elena, I am an import manager Russia, Saint-Petersburg. We are one of the leading producers of gas water heaters and boilers and also trading company of different kind of gas equipment and spare parts. In the attatchment I sent you two pdf drawings. The one is heat changer and the second is burner, both are for our gas boiler. 1. Heat exchanger for gas boilers. Dimensions: see drawing Weight: see drawing Power: 24 kW 2. atmospheric ejection gas burner Dimensions: see drawing Nozzle Material: Stainless Steel Number of sections: 11 pcs. 2.3 kW Gas: G20 Nominal pressure: 130 kPa Please, send me your offer to e.melnikova Looking forward for your reply. Best regards, St. Petersburg, Russia Show More