SCHEDULE CONDITIONS WHICH A GAS FIRE INSTALLED IN A FIREPLACE RECESS OR FLUE BOX MUST MEET WHEN INSTALLED IN ACCORDANCE WITH INSTRUCTIONS SUPPLIED WITH THE FIRE IN ORDER THAT THE FIRE MAY BE EXEMPT FROM THE REQUIREMENT OF THE REGULATIONS FOR A FITTED GUARD
Regulation 6(4)
1 No naked flame or incandescent part of the firebed projects more than 50 millimetres from the vertical plane of the fireplace opening.
2 The forward projection of any naked flame or incandescent part of the firebed is enclosed on all sides except the front.
3 There is a hearth which projects at least 300 millimetres in front of any naked flame (such as the pilot or burner) and any incandescent part of the firebed.
4 The hearth and any surround that is fitted projects at least 150 millimetres beyond each side of the naked flame or incandescent part of the firebed at its widest point.
5 The periphery of the hearth is at least 50 millimetres above the floor level.