Heater Sizing Guidelines; Cylinder Selection - L.B. White TS080 Owner's Manual And Instructions

1. Multiply tent length x width x height = Cubic Meters
(A).
2. Multiply (A) x .133 x 35 = (B).
3. Subtract outdoor temperature from desired indoor
temperature = (C).
4. (B) x (C) ÷ 2 = Heat Requirements in Watts (D).
5. (D) ÷ 1,000 = Heat Requirements in KW.
The amount of vaporized propane gas available from the
cylinders will vary depending upon:
■
The amount of liquid propane in the cylinder(s).
■
The surrounding air temperature of the cylinder(s).
Since less gas is vaporized at lower temperatures, two or
more 47 KG cylinders may be needed in colder weather.
Your local propane gas dealer will help you select the proper
supply system.
The following table shows the minimum number of 47 KG
cylinders needed to run the heater.
Number o o f C C ylinders R R equired a a t V V arious T T emperatures
20º C 15º C 10º C
1 1 1
The diagram at right shows a supply time versus
temperature comparison. It is based upon initial use of full,
47 KG cylinders and a heat load of 29.3 KW at continuous
draw. Notice that one 47 KG cylinder may be used for about
3 hours maximum operating time when at 16º C. But, as
temperature drops, so does the amount of time that the
cylinder is capable of supplying the vapor necessary to feed
the heater. Looking at 0º C. scale, you can see that a 47 KG
cylinder is only capable of supplying the full heat load for
one hour.
5º C 0º C -10º C
1 2 2

HEATER SIZING GUIDELINES

EXAMPLE:
1. Tent Length (15 meters) x width (15 meters) x height
(4 meters) = 900 cubic meters (A).
2. 900 (A) x .133 x 35 = 4190 (B).
3. 20º C. (Desired Temperature) - 0º C. (Outdoor
Temperature) = 20º C. (C).
4. 4190 (B) x 20 (C) ÷ 2 = 41,900 Watts (D).
5. (D) 41,900 ÷ 1,000 = 41.9 KW.
Use t t wo T T S080 h h eaters.
10
9
8
7
6
5
4
3
2
1
0
20 15 10
Lowest Air Temperature (º C.)
■
Have your LP-gas supplier resize your installation from
cylinders to a larger capacity tank if requirements are
above three 47 KG cylinders capacity.
■
The sizing, delivery, set up, and refilling of all L.P. gas
supply containers must only be done by a qualified,
properly trained, L.P. gas installation person.

CYLINDER SELECTION

5 0 -10
10