Specification for installation of gas fires, convector heaters, fire/back boilers and decorative fuel effect gas appliances, Inset live fuel effect gas fires of heat input not exceeding 15 kW (2nd and 3rd family gases)— 24 стр.
Specification for installation of gas fires, convector heaters, fire/back boilers and decorative fuel effect gas appliances, Inset live fuel effect gas fires of heat input not exceeding 15 kW, and fire/back boilers (2nd and 3rd family gases)— 48 стр.
Specification for installation of gas fires, convector heaters, fire/back boilers and decorative fuel effect gas appliances, Inset live fuel effect gas fires of heat input not exceeding 15 kW, and fire/back boilers (2nd and 3rd family gases)— 48 стр.
