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Bs5440 quick guide MHG Heating Ltd ? Air Supply Ventilation and Balance Flue Terminal Positioning Quick Reference Guide for BS - BS IGE UP ed BS - Installation and maintenance of ue and ventilation for gas appliances of rated input not exceeding kW net st

MHG Heating Ltd ? Air Supply Ventilation and Balance Flue Terminal Positioning Quick Reference Guide for BS - BS IGE UP ed BS - Installation and maintenance of ue and ventilation for gas appliances of rated input not exceeding kW net st nd rd family gases Open Flued Appliances Installed within a Room Natural ventilation requirements direct to Outside Air Total rated net input not in excess of kW ?? kW x cm Ventilation opening free area Open Flued Appliances Installed within a compartment Natural ventilation requirements Ventilation route Grille Location Low Level Free Area kW High Level Free Area kW Ventilation to room or internal space The internal space ventilated into must be ventilated as detailed above to outside air cm cm Ventilation direct to outside air cm cm Balanced Flued Appliances Installed within an Enclosure Natural ventilation requirements Ventilation route Ventilation to room or internal space Ventilation direct to outside air Grille Location Low Level Free Area kW cm cm High Level Free Area kW cm cm Document Intended for quick guidance only Absolute guidance must be sought from BS directly BS Speci ?cation for the Installation of gas- ?red hot water boilers of rated inputs between kW net and MW net nd and rd family gases Open Flued Appliances Installed within an Enclosure Natural ventilation requirements direct to Outside Air System Type Operational Time Grille Location Low Level Free Area kW High Level Free Area kW Heating or HWS Operation time operation during summer months cm cm Heating or HWS Operation time operation during summer months cm cm Heating or HWS Operation time operation during summer months cm cm Open Flued Appliances Installed within a Boiler Room Natural ventilation requirements direct to Outside Air System Type Operational Time Grille Location Low Level Free Area kW High Level Free Area kW Heating or HWS Operation time operation during summer months cm cm Heating or HWS Operation time operation during summer months cm cm Heating or HWS Operation time operation during summer months cm cm MHG Heating Ltd Unit Epsom Downs Metro Centre Water ?eld Tadworth Surrey KT LR Phone Fax Info mhgheating co uk www mhgheating co uk CMHG Heating Ltd ? Balanced Flued Appliances Installed within an Enclosure Natural ventilation requirements direct to Outside Air System Type Operational Time Grille Location Low Level Free Area kW High Level Free Area kW Heating or HWS Operation time operation during summer months cm cm Heating or HWS Operation time operation during summer months cm cm Heating or HWS Operation time operation during summer months cm cm Balanced Flued Appliances Installed within an Enclosure Natural ventilation requirements to a room or internal space System Type Operational Time Grille Location Low Level Free Area kW High Level Free Area kW Heating or HWS Operation time operation during summer months cm cm Heating or HWS Operation time operation during summer months cm cm Heating or HWS Operation time operation during summer months cm cm Balanced Flued Appliances Installed within a Boiler Room