Frontier Gas Heat – PN 10-2027 – June 2018 10
CHIMNEY CONNECTOR
Chimney connectors should be positioned to give the shortest possible run of flue pipe to the chimney. The overall
horizontal length of single wall flue piping should not exceed approximately 15 feet. Long runs may require insulated flue
pipe such as B-Vent or L-Vent to keep the temperature at base of chimney adequate for draft and to prevent corrosion of
piping and connectors. Because the System 2000 boiler uses a power burner, the flue pipe may experience some positive
pressure on start up. Energy Kinetics recommends that all pipe joints be sealed with high temperature silicone sealant to
ensure passage of all combustion products to the chimney.
Horizontal portions of the venting system shall be properly supported to prevent dips or sagging. Follow vent pipe
manufacturer’s instructions for proper support of the vent pipe at the intervals specified by the vent pipe manufacturer.
Pitch horizontal flue pipe up toward chimney not less than ¼” per foot.
CHIMNEY VENTING
WARNING: Masonry chimneys must have a tile or metal liner. The liner must:
1) Extend above the masonry.
2) Have an insulating air gap, isolating the liner from the chimney, allowing for rapid heat-up and draft establishment.
3) Be sealed at each joint to prevent air infiltration and damage from condensation.
NOTICE: Inspect Chimney and Chimney base after initial three months of heating season.
The installation of a chimney cap is recommended. The base of the chimney must always have a drop leg below the
flue connector to allow scale and condensation to accumulate without blocking the flue pipe.
CAUTION: If drop leg is in excess of 12 inches deep, backfill with loose gravel or sand to obtain a maximum of 12-inch
depth. All clean out doors must be sealed to prevent cold air entry into chimney.
In retrofit installations, have chimney thoroughly cleaned. Carefully inspect chimney, base of chimney, and liner prior to
installation of System 2000 Boiler.
CAUTION: If liner is not sound or if existing tile liner fails to contain intermittent condensation, or if excessive debris is
found at the base of the chimney, then it is recommended to install a properly sized metal liner approved for use with gas
heat appliances.
The metal chimney liner diameter and length should be as recommended by the metal chimney liner manufacturer.
Corrugated metal liners should be at least 5" diameter for EK-1 and 6" diameter for EK-2. Call Energy Kinetics for details
on metal liners.
Chimney connectors should be positioned to create the shortest possible run of flue pipe to the chimney. Energy
Kinetics has flexible metal chimney connectors available that are 5’ in length and are to be used between the boiler flue
collar and the chimney. Chimney connectors are 5” diameter with 5” X 4” adapter for EK1 and 6” diameter for EK2. The
overall horizontal length of flue piping should not exceed 15 feet. Long runs or low firing rates may require insulated flue
pipe such as L-Vent or All-Fuels to keep the temperature at base of chimney adequate for draft and to prevent corrosion of
piping and connectors.
Because the System 2000 boiler uses a power burner, the flue pipe may experience some positive pressure on start
up. Energy Kinetics recommends that all pipe joints be sealed with high temperature silicone sealant to ensure passage of
all combustion products to the chimney.
Normally, pitch horizontal flue pipe up toward chimney approximately ¼” per foot. For existing installations, it is
permissible for the flue connection of the boiler to be higher than the chimney thimble, provided adequate draft is
established.
If a minimum of -0.02” w.c draft over fire is not present after sufficient burner run time to heat up the chimney, there is a
problem that will need to be corrected. Call Energy Kinetics for help resolving draft problems. Under normal
circumstances, there is NO need for a DRAFT REGULATOR and one should not be installed. Call Energy Kinetics with
questions about flue pipe sizing.
WARNING: No solid fuel appliance or fireplace should be installed in a flue common with this heating appliance. The flue
gas exit of the venting system must be at least three (3) feet above the point at which it passes through the roof and at least
two (2) feet higher than any portion of a building within 10 feet horizontally of its location.
L-VENT CHIMNEY
Gas Heat SYSTEM 2000 Boilers at high firing rates may have flue gas temperatures between 470
o
F and 530
o
F during
normal operation. When flue gas temperatures are below 570
o
F, Type L gas vent chimney pipe is suitable for use with
Gas Heat SYSTEM 2000 Boilers. Type L gas vent chimney pipe is double walled and may allow smaller chase dimensions
than other chimney pipe materials and should be considered for new installations with Gas Heat SYSTEM 2000 Boilers.
A Type L gas vent system shall extend at least five (5) feet of height above the breech of the boiler.
Refer to the section on Gas Vent Termination in the National Fuel Gas Code to determine Minimum Height from Roof to
Lowest Discharge Opening required.
Type L gas vent must be U.L. Listed to U.L. 641. Type L gas vent to be installed and supported in accordance with the
vent manufacturer’s instructions.
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