The Sime heat exchanger kit transfers heat from a boiler's burner to water. A primary heat exchanger is found in all boilers, using heat from a burner to raise the temperature of the water in the system, whereas a secondary heat exchanger, which is only found in combis, enables the passage of heat across closed systems.
Supplied with 4 O-ring
Technical specification
Waist Sizeab29cf12gwTypeHeat ExchangerERP RatingNot ApplicableCompatible WithSime Ecomfort 25 HE, Sime Ecomfort 30 HE and Sime Ecomfort Plus 30 HESupplier Part Number6281535/SIMBrand NameSime