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106179
OWNER’S MANUAL
For more information, visit www.desatech.com
PRODUCT
IDENTIFICATION
THEORY OF
OPERATION
The Fuel System for Propane: The hose/
regulator assembly attaches to the propane
gas supply. This provides fuel to the heater.
The Fuel System for Natural Gas: The gas
supply attaches to the heater by a minimum
3/4 inch i.d. hose or flexible connector. User
must supply hose or flexible connector. The
length should be no more than 10 feet long.
The natural gas moves through the regulator
and out the nozzle.
The Ignition System: The piezo ignitor
lights the pilot fuel supply.
The Automatic Control System: The auto-
matic control valve shuts off the heater if the
flame goes out.
Figure 1 - Product Identification
PROPANE SUPPLY
(FOR MODEL TC100VR)
You must provide propane gas and propane
tank(s).
Use this heater only with a propane vapor
withdrawal supply system. See Chapter 5 of
the Standard for Storage and Handling of
Liquefied Petroleum Gas, ANSI/NFPA 58
and/or CAN/CGA B149.2.
Your local library
or fire department will have this booklet.
The amount of propane gas ready for use
from propane tanks varies. Two factors de-
cide this amount.
1. The amount of liquid propane gas in
tank(s)
2. The temperature of tank(s)
Less gas is vaporized at lower temperatures.
Two or more 100-pound tanks or one larger
tank may be needed in colder weather. Your
local propane gas dealer will help you select
the proper supply system.
Average Temp. (ºF) Number
At Tank location of Tanks
60º 2
40º 2
32º 2
20º 2
10º 3
0º 3
H
I
G
H
M
E
D
I
U
M
Ignitor
Electrode
Thermocouple
Piezo Ignitor
Button
Valve Inlet
Hose/Regulator
Assembly for Propane
Base
Top
Burner
Tube
Emitter
Shell
Base
Shield
Control
Knob
Lower Shield
Upper Shield
Regulator for
Natural Gas
The chart below shows the minimum num-
ber of 100-pound tanks needed to run the
heater. Connect tanks together with a mani-
fold. Do not operate this product with any
tank smaller than 100 pounds.
NATURAL GAS
SUPPLY
(FOR MODEL TC100VRNA)
You must provide the natural gas supply and
the connections to the heater.
The natural gas supply must have a capacity
of 100 scfh at 6 inches water column to 14
inches water column.
Consult your natural gas supplier for proper
sizing of the natural gas supply lines.
Follow all local ordinances and codes. In the
absence of local ordinances and codes, refer
to the National Fuel Gas Code Handbook,
NFPA54/ANS Z223.1 and the Natural Gas
Installation Code, CAN/CGA B149.2.