Model identifier : SRII 62 Type of heating : Luminous Fuel Fuel Space heating emissions(*) NOx Select fuel type Gaseous G20/G25/G31 18 mg/kWh input(GCV) Characteristics when operating with the preferred fuel only Item Symbol Value Unit Item Symbol Value Unit Heat output Useful efficiency (GCV) Tube local space – heaters only (**) Nominal heat output Pnom 18,5 kW Useful efficiency at 85,6 % Ƞth, nominal heat output nom Minimum heat output Pmin 9,3 kW Useful efficiency at 85,6 % Ƞth,min minimum heat output Minimum heat output ( .. 50 % as percentage of nominal heat output) Nominal tube system P système (N.A) kW heat output ( if applicable) Nominal tube segment P heater (N.A) kW Useful efficiency of tube (N.A) % Ƞi heat output (if segment at minimum applicable) heat output ( if applicable) (Repeat for multiple .. (N.A) kW (repeat for multiple .. (N.A) % segment , if applicable) segments, if applicable) Number of identical tube n (N.A) (-) segments Radiant factor Envelope losses Radiant factor at nominal RFnom 65 (-) Envelope insulation U (N.A) W/ heat output class (m²K)
Model identifier : SRII 62 Type of heating : Luminous Fuel Fuel Space heating emissions(*) NOx Select fuel type Gaseous G20/G25/G31 18 mg/kWh input(GCV) Characteristics when operating with the preferred fuel only Item Symbol Value Unit Item Symbol Value Unit Heat output Useful efficiency (GCV) – Tube local space heaters only (**) Nominal heat output Pnom 18,5 kW Useful efficiency at nominal heat output Ƞth, nom 85,6 % Minimum heat output Pmin 9,3 kW Useful efficiency at minimum heat output Ƞth,min 85,6 % Minimum heat output ( as percentage of nominal heat output) .. 50 % Nominal tube system heat output ( if applicable) P système (N.A) kW Nominal tube segment heat output (if applicable) P heater (N.A) kW Useful efficiency of tube segment at minimum heat output ( if applicable) Ƞi (N.A) % (Repeat for multiple segment , if applicable) .. (N.A) kW (repeat for multiple segments, if applicable) .. (N.A) % Number of identical tube segments n (N.A) (-) Radiant factor Envelope losses Radiant factor at nominal heat output RFnom 65 (-) Envelope insulation class U (N.A) W/ (m²K)