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SPECIFICATIONS FOR PROPANE USE
•
Operating costs approximate assessment;
-
1 m3 of liquid gas in gaseous stage has a lower heating
capacity, of nearly 25.6 kWh.
- To obtain 1 cu.m of gas, about 2 kg of liquid gas are needed,
i.e. about 4 litres of liquid gas.
• Safety provisions
• Liquid propane gas (L.P.G.) in the gaseous form has a greater
specific weight than air (specific weight relative to air = 1.56
for propane), which means it does not disperse in air like
natural gas, which has a lower specific weight than air (specific
weight of natural gas relative to air = 0.60), but precipitates and
spreads out at ground level (as if it were a liquid). Summing up
the concepts we deem most relevant fir the use of LPG
•
Liquefied petroleum gas (L.P.G.) burners and/or boilers may be
used only in premises located above ground level and certified
toward free spaces. Installations using liquid gas are not allowed
in underground or semi-underground premises.
• Rooms where liquid gas is used must have ventilation inlets
without closing devices, located on external walls, in compliance
with the local exiting rules.
•
Carrying out the propane gas system to ensure correct,
safe operation.
Natural gasification from sets of cylinders or a tank can be used
only in low power systems. Gas supply capacity on the basis of
tank size and minimum outdoor temperature are shown in the
table below, as an approximate indication only.
Minimum
temperature
- 15 °C
- 10 °C
- 5 °C
- 0 °C
+ 5 °C
Tank 990 l.
1.6 Kg/h 2.5 Kg/h 3.5 Kg/h
8 Kg/h
10 Kg/h
Tank
3000 l.
2.5 Kg/h 4.5 Kg/h 6.5 Kg/h
9 Kg/h
12 Kg/h
Tank
5000 l.
4 Kg/h
6.5 Kg/h 11.5 Kg/h 16 Kg/h
21 Kg/h
•
Burner;
The burner must be ordered specifically for use with liquid
gas (L.P.G.) so that it is equipped with gas valves of sufficient
dimensions to ensure correct ignition and gradual adjustment.
We provide valves with size suitable for a supply pressure
starting from approx. 300 mm mbar. You suggest checking the
burner gas pressure by using a pressure gauge.
DANGER / ATTENTION
The maximum and minimum power (kW) of the burner
refers to natural gas which is more or less the same as with
propane.
•
Combustion control
To keep consumption down and mainly to prevent serious
problems, regulate the combustion using the specific
instruments. It is absolutely essential to check that the
percentage of carbon monoxide (CO) does not exceed the
maximum permitted value by the local existing regulation (use a
combustion analyser or other similar instrument).
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