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Antifreeze added to boilers must be nontoxic, and
must be of type specifically intended for use in closed
hydronic heating systems. Under no circumstances
should automotive antifreeze be used. Antifreeze used
in any boiler may reduce capacity by 10% or more and
increase fuel consumption. Tankless coil performance
will fall as concentration of antifreeze is increased. Refer
to boiler and piping water volumes tables.
BOILER WATER VOLUMES
Number of
Boiler Section
3
4
5
For oil fired boilers for connections to vents or chimneys,
vent installations shall be in accordance with requirements
of authority having jurisdiction, or in the absence of such
requirements: United States. NFPA 31: Standard for the
Installation of Oil Burning Equipment (latest edition).
NOTICE
Fresh air (ventilation) is important to proper
venting. Ventilation and venting are two parts of the
same system. Inadequate ventilation will result in
inadequate venting. Always be sure to have enough
ventilation to support proper venting.
Inspect chimney. Verify construction in accordance with
requirements of authority having jurisdiction, or in the
absence of such requirements: United State ANSI/NFPA
211: National Standard for Chimneys, Fireplaces, Vents and
Solid Fuel Burning Appliances.
FIRING RATE
(gph)
0.60 1.30
1.31 1.80
For elevations above 2,000 feet above sea level, add 3 feet to the chimney heights.
— This boiler is not approved for direct sidewall horizontal venting.
— In the U.S. : Per section E.11 of NFPA 31-2020 Standard for the Installation of Oil Burning Equipment, a listed
power venter providing mechanical draft may be used when approved by the Authority having jurisdiction. Select
the listed power venter to match the BTU per hour input of the boiler being vented. Follow all manufacturer's
installation and operating instructions for venting and termination included with the power venter.
ANTIFREEZE IN THE SYSTEM
Total Volume
(Gallons)
9.6
11.6
13.7
CHIMNEY AND CHIMNEY CONNECTIONS
RECOMMENDED MINIMUM CHIMNEY SIZES
CHIMNEY
NOMINAL
HEIGHT (ft)
CHIMNEY
15
15
Sidewall Venting With Listed Power Venter
PIPING WATER VOLUMES
PIPE SIZE
½"
¾"
1"
1 ¼"
1 ½"
2"
Divide total length of piping in feet by appropriate factor
in table to determine volume in gallons.
ROUND
LINER INSIDE
8" x 8"
6"
8" x 8"
7"
16
COPPER PIPE
STEEL PIPE
FACTOR
FACTOR
82.5
40.0
23.3
15.3
10.8
6.2
SQUARE
LINER INSIDE
6 ¾" x 6 ¾"
6 ¾" x 6 ¾"
PN 240013016, Rev. B [12/31/2020]
63.5
36.0
22.2
12.8
9.5
5.8
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