Use and Care Manual

6
HEATER ELEVATION ADJUSTMENT
This heater is equipped with an elevation adjustment panel located at the exhaust end of the control box.
1. Do not adjust the heater combustion tube elevation while heater is running or hot. Adjustments to elevation
should only be made after the heater has cooled to touch.
2. To adjust the heater combustion tube elevation, turn the adjustment screw knob counterclockwise and lift
the combustion tube to desired position.
SIZE AND CAPACITY OF PROPANE CYLINDERS REQUIRED
The charts below show the approximate size of the cylinder required for these heaters. To use the chart:
1. Select the lowest air temperature expected (at the bottom of the chart).
2. Move straight up to time of operation desired (left side of chart).
3. Read the cylinder size required.
NMLP60
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
60 40 20
20# (9kg) CYLINDER
40# (18kg) CYLINDER
0 -20
(16) (4.4) (-6.7) (-18) (-29)
DURATION OF OPERATION ON MAX - HOURS
AIR TEMPERATURE - °F (°C)
NMLP120
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
60 40 20
100# (45.4KG)
100# (45.4KG)
100# (45.4KG)
3 cylinders
2 cylinders
1 cylinder
0 -20
Use liquid withdrawal
and a vaporizer
(16) (4.4) (-6.7) (-18) (-29)
MAXIMUM OPERATING TIME - HOURS
AIR TEMPERATURE - °F (°C)
40
38
36
34
32
NMLP170
60 40 20 0 -20
Use liquid withdrawal
and a vaporizer
MAXIMUM OPERATING TIME - HOURS
AIR TEMPERATURE - °F
Fuel Cylinder Capacity: 100#
-10103050
0
22
24
26
28
30
20
32
34
36
38
18
16
2
14
12
10
8
6
4