L.B. White Tradesman 400 Dual Fuel, Owner'S Manual And Instructions, Page: 12 / 120

Tradesman Construction Heaters
www.lbwhite.com
Owner’s Manual • Tradesman
12
The vaporization of propane is affected by several
factors: the surface area of the container, the liquid
level of propane, temperature surrounding the
container, and the relative humidity. All of these
factors are speci
fi c to a site. Therefore, a degree of
experience and judgement is required to select the
proper propane supply.
Although experience is the best guide, the following
recommendations can be used as a starting point.
The table is based on experience in northern
climates where cold weather and high humidity are
prevalent in the winter.
Propane Gas Supply Sizing
If more or less favorable conditions prevail at a speci fi c
site, adjustments can be made on the basis of experi-
ence.
If more than one gas supply container is used per heater,
the containers must be manifolded together to allow va-
por withdrawal simultaneously from multiple containers.
Manifold system shall be in accordance with NFPA 58.
Tradesman 170 LP Recommended Propane Gas Supply
Average Temp ºF 50 40 30 20 10 0 -10
°C 10 4.4 -1.1 -6.7 -12.2 -17.8 -23
Number of 100lb.(45kg) 1 1 1 2 2 2 3
Gas Cylinders to
Use Per Heater
* When multiple LP gas supply containers are used, the containers must be manifolded together together to
allow simultaneous vapor withdrawal from all cylinders.
Tradesman 400 Recommended Gas Supply
Propane Supply Tank: Heater(s)/Container(s):
500 gallon/ 1,893 litres 1 heater per tank
1,000 gallon/3,785litres 2 heaters per tank