Registered Gas Installers
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Maximum quantities of gas inside buildings

Maximum quantities of gas inside buildings NOTE 1 The above limits are based on buildings provided with separating elements and safety distances that comply with the requirements of SANS 10400-T. Where uncertainty exists, the Local Authority should be consulted. NOTE 2 For a full description of the occupancy types see Annex B 5.2.3.2 No installation shall be installed inside a garage. 5.2.3.3 For special events the local authority shall be consulted. . 5.2.3.4 Containers shall never be located below ground level in a building, for example, in cellars or basements. 5.2.3.5 Containers shall not be located above or on top of any appliance used for cooking or heating. 5.2.3.6 Containers shall be located in a place with floor-level ventilation to the outside air to minimise any possible accumulation of gas in the event of leakage. Airbricks situated near the bottom of an external wall (maximum 300 mm measured from floor level to the top of airbricks) or a normal gap of at least 6 mm underneath an external door (or a combination of these) usually provides sufficient ventilation. The gas container, if it is not placed in a cupboard, shall be placed as close as possible to a door leading to the outside of the building. Where this location cannot be attained, there shall be low level permanent ventilation near the container This can be achieved by having a minimum of two airbricks in close proximity to the container on the external wall and as low as possible to the floor level, where the total capacity of LPG exceeds 9kg additional air bricks or ventilation openings shall be provided. (See figure 1

Maximum quantities of gas inside buildings


Class of Occupancy

Occupancy

Maximum



H3

Domestic residence -





Flats ( irrespective of height) and Clusters, Town houses or Semi Detached Houses exceeding 2 storeys

9kg per unit (including balconies) 

Please note the gas regulation's clearly state that a gas cylinder may Not be installed in a Garage 



Clusters, Town houses or Semi Detached Houses not exceeding 2 storeys

19kg per unit (including balconies) 

Please note the gas regulation's clearly state that a gas cylinder may Not be installed in a Garage 


H4

Dwelling house

19kg per house (including any attached garage or other attached outbuildings)

Please note the gas regulation's clearly state that a gas cylinder may Not be installed in a Garage 


Definition :

H4 Dwelling house
Occupancy consisting of a dwelling unit on its own site, including a garage and other domestic
outbuildings, if any.  Please note the gas regulation's clearly state that a gas cylinder may Not be installed in a Garage 

H3 Domestic residence
Occupancy consisting of two or more dwelling units on a single site.  Please note the gas regulation's clearly state that a gas cylinder may Not be installed in a Garage