Gas-fired central heating boilers - Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW
Chimneys - Requirements and test methods for metal chimneys and material independent air supply ducts for room sealed heating applications - Part 2: Flue and air supply ducts for room sealed appliances
Chimneys - Requirements and test methods for metal chimneys and material independent air supply ducts for roomsealed heating applications - Part 1: Vertical air/flue terminals for C6-type appliances
