Desa Tech TC25 Owner's Manual

PROPANE

CONSTRUCTION

HEATER

OWNER’S MANUAL

Models: TC25 and RCP25

IMPORTANT: Read and understand this manual before assembling, starting, or
servicing heater. Improper use of heater can cause serious injury. Keep this
manual for future reference.

GENERAL HAZARD WARNING:

WARNING ICON G 001

FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PRO­VIDED WITH THIS HEATER, CAN RESULT IN DEATH, SERIOUS BODILY INJURY
AND PROPERTY LOSS OR DAMAGE FROM HAZARDS OF FIRE, EXPLOSION,
BURN, ASPHYXIATION, AND/OR CARBON MONOXIDE POISONING.

ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW THE INSTRUCTIONS
SHOULD USE OR SERVICE THIS HEATER.

IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH AS AN INSTRUC­TIONS MANUAL, LABELS, ETC. CONTACT THE MANUFACTURER.

TC25 and RCP25
PROPANE CONSTRUCTION HEATER

SAFETY
INFORMATION

!

WARNINGS

WARNING: FIRE, BURN, IN­HALATION, AND EXPLOSION
HAZARD. KEEP SOLID COMBUS­TIBLES, SUCH AS BUILDING MA­TERIALS, PAPER OR CARD­BOARD, A SAFE DISTANCE
AWAY FROM THE HEATER AS
RECOMMENDED BY THE IN­STRUCTIONS. NEVER USE THE
HEATER IN SPACES WHICH DO
OR MAY CONTAIN VOLATILE OR
AIRBORNE COMBUSTIBLES, OR
PRODUCTS SUCH AS GASO­LINE, SOLVENTS, PAINT THIN­NER, DUST PARTICLES OR UN­KNOWN CHEMICALS.

WARNING: NOT FOR HOME
OR RECREATIONAL VEHICLE
USE.

We cannot foresee every use which may be
made of our heaters. Check with your local

fire safety authority if you have questions
about heater use.

Carbon Monoxide Poisoning: Some
people are more affected by carbon monox­ide than others. Early signs of carbon mon­oxide poisoning resemble the flu, with head­aches, dizziness, and/or nausea. If you have
these signs, the heater may not be working
properly. Get fresh air at once! Have heater
serviced.

Propane Gas: Propane gas is odorless.
An odor-making agent is added to propane
gas. The odor helps you detect a propane gas
leak. However, the odor added to propane
gas can fade. Propane gas may be present
even though no odor exists.

Make certain you read and understand all
Warnings. Keep this manual for reference.
It is your guide to safe and proper operation
of this heater.

• Install and use heater with care. Follow
all local ordinances and codes. In the
absence of local ordinances and codes,
refer to ANSI/NFPA 58. This instructs
on the safe storage and handling of
propane/LP gases.

• Use only the hose and regulator provided
with the heater.

• Use only propane gas set up for vapor
withdrawal.

• For indoor and outdoor use. When used
indoors, use only in well-vented areas.
Provide at least 120 square inches of
fresh, outside air before using heater.

• This heater produces carbon monoxide,
which is listed by the State of California
as a reproductive toxin under
Proposition 65.

• Do not use heater in occupied dwellings,
sleeping quarters, campers, tents, or any
type of unvented or enclosed area.

• Do not use heater in basement or below
ground level. Propane gas is heavier than
air. If a leak occurs, propane gas will sink
to the lowest possible level.

• Do not use heater as a cooking device.
Do not place objects on top of heater.

• Keep appliance area clear and free from
combustible materials, gasoline, paint
thinner, and other flammable vapors and
liquids. Dust is combustible. Do not use
heater in areas with high dust content.

• Minimum heater clearances from
combustibles: Sides: 3 feet; Top: 6 feet.

• Keep heater at least six feet from
propane tank(s).

• Keep propane tank(s) below 100ºF while
in use.

• Before each use, check heater for leaks.
Never use an open flame to check for a
leak. Apply a mixture of liquid soap and
water to all joints. Bubbles forming show
a leak. Correct all leaks at once.

• Check heater for damage before each
use. Do not use a damaged heater.

• Check hose before each use of heater. If
highly worn or cut, replace with hose
specified by the manufacturer before
using heater.

• Do not alter heater. Keep heater in its
orginal state.

• Do not use heater if altered.

• Locate heater on stable and level surface
if heater is hot or not operating.

• Never block air inlet (top of base) or air
outlet (around top of shell) of heater.

• Keep heater away from strong drafts,
wind, water spray, rain, or dripping
water.

• Never operate heater while unattended.
Never run heater while asleep.

• Keep children and animals away from
heater.

• Before connecting heater to propane tank,
make sure the heater requlator knob is in
the “OFF” position. Always connect and
operate heater in areas free of open flames.

• Never move, handle, or service a hot or
operating heater. Severe burns may
result. You must wait 15 minutes after
turning heater off.

• To prevent injury, wear gloves w hen
handling heater.

• Always remove gas hose from propane
tank, after each use. Always store
propane tank outdoors. Never store
propane tank in an enclosed area. Never
store tank near high heat, open flame,
or where temperatures exceed 120ºF.

• Turn of f propane supply to heater when
not in use.

• Use only original replacement parts.
This heater must use design-specific
parts. Do not substitute or use generic
parts. Improper replacement parts could
cause serious or fatal injuries.

• Keep all connections and fittings clean.
Make sure propane tank valve outlet is
clean. Check the rubber “O” ring on the
heater inlet fuel connector for damage
before each use. Replace if worn or
damaged.

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101857

OWNER’S MANUAL

PRODUCT IDENTIFICATION

Top

Hose/Regulator/Fuel
Gas Connector
Assembly

Piezo Ignitor Button

Figure 1 - Product Identification

UNPACKING

1. Remove all packing items applied to
heater for shipment. Keep plastic cover
caps (attached to inlet connector and
hose/regulator assembly) for storage.

2. Remove all items from carton.

3. Check all items for shipping damage.
If heater is damaged, promptly inform
dealer where you bought heater.

Shell

Base

Gas Inlet Connector

THEORY OF
OPERATION

The Fuel System: The hose/regulator
assembly attaches to the propane gas sup­ply. This provides fuel to the heater.

The Ignition System: The piezo ignitor
lights the burner.

The Automatic Control System: The
automatic control valve shuts off the heater
if the flame goes out.

NOTICE: Because of the metal
lubricant used in this product,
you may notice some smoking
upon initial start-up and shut
down. This condition is normal
and should not occur beyond the
first several (5-10) minutes of
operation. If you have questions,
please call 1-800-323-5190.

Automatic Control
Valve Button

PROPANE SUPPLY

Propane gas and propane tank(s) are to be
furnished by the user.

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.
Your local library or fire department will
have this booklet.

The amount of propane gas ready for use
from propane tanks varies. Two factors de­cide this amount:

1. The amount of propane gas in tank(s)

2. The temperature of tank(s)
This heater is designed to operate with a

minimum 20-pound tank. You may need
two or more tanks or one larger tank in
colder weather. Use a 100-pound tank for
longer operation or in very cold weather.
Less gas is vaporized at lower temperatures.
Your local propane gas dealer will help you
select the proper supply system.

Temperature(°F) Number of tanks,
at Tank Location (100-pound)

40° 1
32° 1
20° 1
10° 1
0° 1

-10° 2

-20° 2

VENTILATION

WARNING: Provide at least
an 120-square-inch opening of
fresh, outside air before using
heater. If proper fresh, outside
air ventilation is not provided,
carbon monoxide poisoning can
occur. Provide proper fresh, out­side air ventilation before run­ning heater.

101857

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