When using heaters which involve combustion of a fuel such as gas oil or L.P.G. adequate fresh air must be provided both to ensure the correct functioning of the equipment and to eliminate the risk of oxygen starvation and asphyxiation to anyone in close proximity to the heater.
L.P.G. (Liquid Petroleum Gas) is a colourless gas treated with a stenching agent to give it its characteristic smell. It is in liquid form under pressure in the bottle and vapourises as the pressure is released. L.P.G. is twice as heavy as air and any leakage will tend to collect in pits, cellars and drains. Low level ventilation is essential when using L.P.G.
Typical L.P.G. Bottle Classification
When buying gas either an empty gas bottle of the same size must be exchanged or a Gas Bottle Deposit paid.
TO DETERMINE THE SIZE OF HEATER REQUIRED FOR A GIVEN AREA USE THIS CALCULATION.
Determine area in cubic metres L x W x H in metres (A)
What temperature rise is required in °C? (T)
How well insulated is the building?
Good
= 1.2(K)
Heat requirement (btu/hr) = A x T x K x 4, to get the answer in kw divide by 3412.
e.g. a badly insulated enclosed area of 2000m³ requiring a temperature rise of 10°C will be:
2000 x 10 x 3 x 4 = 240,000 btu/hr or 70kw/hr
Large areas may require multiple heaters.
Catalogue Code: 008-015