16
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
Total Volume
(Gallons)
3
9.6
4
11.6
5
13.7
PIPING WATER VOLUMES
PIPE SIZE
COPPER PIPE
FACTOR
STEEL PIPE
FACTOR
½”
82.5
63.5
¾”
40.0
36.0
1”
23.3
22.2
1 ¼”
15.3
12.8
1 ½”
10.8
9.5
2”
6.2
5.8
Divide total length of piping in feet by appropriate factor
in table to determine volume in gallons.
ANTIFREEZE IN THE SYSTEM
RECOMMENDED MINIMUM CHIMNEY SIZES
FIRING RATE
(gph)
CHIMNEY
HEIGHT (ft)
NOMINAL
CHIMNEY
ROUND
LINER INSIDE
SQUARE
LINER INSIDE
0.60 1.30
15
8” x 8”
6”
6 ¾” x 6 ¾”
1.31 1.80
15
8” x 8”
7”
6 ¾” x 6 ¾”
For elevations above 2,000 feet above sea level, add 3 feet to the chimney heights.
CHIMNEY AND CHIMNEY CONNECTIONS
For oil fired boilers for connections to vents or chimneys,
vent installations shall be in accordance with applicable
provisions of NFPA-31 Standard for the installation of
Oil-Burning Equipment
(latest edition) and applicable
provisions of local building codes.
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.
Check your chimney to make certain that it is right size,
properly constructed and in good condition.
See Table “Recommended Minimum Chimney Sizes”.
For additional chimney design and sizing information,
consult the
National Standard for Chimneys, Fireplaces,
Vents and Solid Fuel Burning Appliances,
ANSI/NFPA 211.
Sidewall Venting With Listed Power Venter
—
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.
PN 240013012, Rev. B [12/15/2020]
