As with the electrical regulations

6.2 Installation of appliances
6.2.1 Fixed appliances shall be installed by a registered installer. When siting an appliance, due
regard shall be paid to convenience in use, to protection from draughts and damage, and to the
layout of the gas piping system. Pipe runs shall be as neat, tidy and as short as possible. Pressure
regulators shall be of an approved type. Low-pressure regulators shall comply with SANS 1237.