DeWalt DXH70CFAV Instruction Manual page 8

SERVICING
A hazardous condition may result if a heater is used that has been modified or
is not functioning properly. When the heater is working properly:
• The flame is contained within the heater
• The flame is essentially blue with perhaps some yellow tipping.
• There is no strong disagreeable odor, eye burning or other physical
discomfort.
• There is no smoke or soot internal or external to the heater
• There are no unplanned or unexplained shut downs of the heater
The parts lists and exploded view show the heater as it was constructed. Do
not use a heater which is different from that shown. In this regard, use only the
hose, regulator and cylinder connection fitting (called a POL fitting) supplied
with the heater. IMPORTANT Match the color stripe on the hang tag attached
to the hose assembly with the color on the label located near the propane inlet
fitting on the heater. Do not use alternates. If there is any uncertainty about the
regulator, have it checked or replaced with the one noted in the parts list in this
manual. A heater which is not working right must be repaired, but only by a
trained, experienced service person. In-warranty products will be repaired with
no charge for either parts or labor. Please include a brief statement indicating
date, place of purchase, the nature of the problem and proof of purchase.
Out-of-warranty products will be repaired with a charge for parts, labor and
shipping. When service or repair is required, it is recommended that you
take your heater to an authorized service Center.
When servicing or replacing batteries, please note:
• Do not service the heater with battery connected
• Do not operate a damaged heater.
• Use only DEWalt original battery type.
• Do not dispose of the batteries in a fire. The cell may explode. See
"Battery Recycling Information" below.
• Do not open or mutilate the batteries. Released electrolyte is corro-
sive and may cause damage to the eyes or skin. It may be toxic if
swallowed.
• Exercise care in handling batteries in order not to short the battery
with conducting materials such as rings, bracelets and/ or keys. The
battery and/ or conductor may overheat and cause burns
SIZE AND CAPACITY OF PROPANE CYLINDERS REQUIRED
The following table shows the approximate run times of the various cylin-
der sizes suitable for use with these heaters. All heaters should have: Full
Run time (High and Low)
BTU/HR 20lb (9kg)
68,000 6.17 Hours
27,000 14.39 Hours
BTU PER HOUR REQUIRED
Cubic feet of
space to be
20
heated
5,000 14,000
7,000 19,000
10,000 27,000
15,000 40,000
8
cylinders, good air circulation and no
frost on cylinders. Actual run times
will vary depending on temperatures
and variations in the tanks, the run
times you experience may be longer or
shorter. Run times stated below are for
the estimation of consumption and run
time capabilities from the LP supply
tank. Heater operation times will
depend on the DEWalt battery being
used. For more information contact
customer support at the number listed
in this manual.
40lb (18kg) 100lb (45kg)
12.34 Hours 30.84 Hours
28.79 Hours 71.97 Hours
Temperature Rise Required
30 40
20,000 27,999
28,000 38,000
40,000 54,000
60,000 80,000 100,000
50
34,000
47,000
67,000