Form #43219040
Oct 2013
Fire sprinkler heads must be located at an appropriate distance from the heater. This distance
may exceed the published clearance to combustibles. Certain applications will require the use of high temperature
sprinkler heads or relocation of the heaters.
Sprinkler systems containing propylene glycol or other flammable substances are not to be used in conjunction
with this heater without careful consideration for and avoidance of potential fire or explosion hazards. For further
information consult NFPA 13. Always observe applicable state and local codes.
5)
R (B,S,M) D SERIES SPECIFICATIONS
MODEL NO.
BTU/HR INPUT
NUMBER
OF BURNERS
ORIFICE SIZE
SHIPPING WEIGHT
MINIMUM
MOUNTING
HEIGHT (feet)
Natural Gas
Propane Gas
R (B,S,M) D 030-N1C
33,000
1
3/32”
n/a
30 lbs.
11
R (B,S,M) D 035-N1C
35,000
1
#41
n/a
30 lbs.
12
R (B,S,M) D 040-N1C
40,000
1
#38
n/a
30 lbs.
12
R (B,S,M) D 060-N1C
65,000
2
3/32”
n/a
35 lbs.
13
R (B,S,M) D 070-N1C
70,000
2
#41
n/a
35 lbs.
13
R (B,S,M) D 080-N1C
80,000
2
#38
n/a
35 lbs.
14
R (B,S,M) D 100-N1C
100,000
3
#41
n/a
48 lbs.
15
R (B,S,M) D 120-N1C
120,000
3
#38
n/a
48 lbs.
16
R (B,S,M) D 140-N1C
140,000
4
#41
n/a
58 lbs.
17
R (B,S,M) D 160-N1C
160,000
4
#38
n/a
58 lbs.
18
R (B,S,M) D 033-L1C
33,000
1
n/a
#52
30 lbs.
11
R (B,S,M) D 066-L1C
66,000
2
n/a
#52
35 lbs.
13
R (B,S,M) D 100-L1C
99,000
3
n/a
#52
48 lbs.
15
R (B,S,M) D 132-L1C
132,000
4
n/a
#52
58 lbs.
17
MODEL SUFFIX
GAS-PIPE
CONNECTION:
One Orifice Per Burner
Gas Type:
Ignition System:
N
= Natural
L
= Propane
1
= Direct Spark (115 Volt / 0.40 Amp / 60 Hz)
1/2” NPT (Female)
*MOUNT HEATERS AS HIGH AS POSSIBLE. Minimums are shown as a guideline for human comfort and uniform
energy distribution for complete building heating applications. Consult your Mestek representative for the
particulars of your installation requirements.
6
INSTALLER
In locations used for storage of combustible materials where they may be stacked below the heater,
NFPA 54 requires that the installer must post signs that will “specify the maximum permissible
stacking height to maintain the required clearances from the heater to combustibles.” Mestek
recommends posting these signs adjacent to the heater thermostat or other suitable location that will
provide enhanced visibility. It is important to provide warnings to alert individuals of potential hazards
and safety actions. Posted signs should state the hazards for the particular application and be legible
to building occupants.
