WARNING: Improper installation, adjustment, altera-
tion, service or maintenance can cause injury, property
damage, or death. Read the installation, operating, and
maintenance instructions thoroughly before installing
or servicing this equipment.
Specifications ...................................................... 2
Safety .................................................................. 2
Assembly ............................................................. 5
Locating Heater ................................................... 9
• Rating: 40,000 Btu/hr (11.7 kW)
• Type of Gas: Propane/LP Only
• Gas Supply Pressure to Regulator: Maximum - 150 psi (1034.2 kPa), Minimum - 5 psi (34.5 kPa)
• Gas Supply Pressure Regulator Out: 11" W.C. (2.74 kPa)
• Ignition: Manual Ignition
• Fuel Consumption: 1.8 lbs./hr (0.9 kg/hr)
• Flame Safety: Thermocouple Operated Gas Valve
WARNING: This product
contains and/or generates
chemicals known to the State
of California to cause cancer or
birth defects, or other reproduc-
tive harm.
WARNING: Not for home or
recreational vehicle use.
WARNING: Fire, burn, inhala-
tion, and explosion hazard. Keep
solid combustibles, such as build-
ing 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, sol-
vents, paint thinner, dust particles
or unknown chemicals.
2
TaBLE OF cOnTEnTS
SPEciFicaTiOnS
SaFETy
www.desatech.com
Operation ............................................................. 9
Storage .............................................................. 10
Servicing .............................................................11
Parts .................................................................. 12
Warranty ............................................................ 16
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.
Other standards govern the use of fuel gases
and heat producing products for specific
uses. Your local authorities can advise you
about these.
Carbon Monoxide Poisoning: Direct-Fired
means that all of the combustion products
enter the heated space. Even though this
heater operates very close to 100 % combus-
tion efficiency, it still produces small amounts
of carbon monoxide. 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! Check for proper ventilation and
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.
123748-01A