Hearth & Home Technologies • Fireside Burner/Hearth Kits • 4004-304 Rev I • 03/2021 9
C. Gas Pressure
Proper input pressures are required for optimum appliance per-
formance. Gas line sizing requirements need to be made following
NFPA51.
Fire Risk
Explosion Risk
High pressure will damage valve.
• Disconnect gas supply piping BEFORE
pressure testing gas line at test pressures above
1/2 psig.
• Close the manual shutoff valve BEFORE
pressure testing gas line at test pressures equal
to or less than 1/2 psig.
WARNING
High Altitude Derate
In the USA, input BTU shall be derated 4% (one orice size)
per 1000 feet for altitudes above 2000 feet. In Canada, input
BTU shall be derated 10% (two orice sizes) at altitudes from
2000-4500 feet.
• Gas Supply Pressure: Minimum inlet gas supply pressure must
be 3.5 in. W.C. for the purpose of input adjustment. Maximum
inlet gas pressure must not exceed 10.0 in. W.C. e gas line
supplying the appliance must be sucient size to furnish the
appropriate supply pressure to the appliance while operating in
the “High” setting. (Minimum line ID of 1/2 in. required if the
line is longer than 20 .
• Gas Line Pressure Test: Perform pressure test according to state
and local code (if pressure exceeds 1/2 in. psi [3.5 kPa]) before
appliance is connected. Be sure to release air pressure from the
gas line before connection is made to the appliance.
• Gas Leak Test: Make sure the gas connections are tight. Turn
on the gas and coat each joint with a non-corrosive gas leak
check solution. Air bubbles will form indicating any leaks. DO
NOT USE A FLAME OR ANY TYPE OF IGNITION SOURCE
TO CHECK FOR LEAKS. All leaks must be corrected before
proceeding with installation.
• e appliance must only be installed in a solid-fuel burning
replace with the ue damper clamped open. e replace
must be constructed of non-combustible material.
• e minimum permanent free opening (in square inches) that
must be provided by the replace chimney or damper to vent the
ue gases is provided in C.Table 2. If the free opening is smaller
than the specied area, do not use this appliance.
• e damper must be removed or xed in a manner in which
will secure it open. Some jurisdictions require the damper to be
removed or permanently welded fully open. Check with state
and local codes.
• Be sure that the chimney is completely unobstructed to ensure
proper ventilation of ue gases including carbon monoxide
(CO). CO (a poisonous gas) is tasteless, odorless, colorless and
undetectable without proper equipment.
WARNING
CHECK FOR GAS LEAKS
Fire Risk
Explosion Risk
Asphyxiation Risk
• Check all ttings and connections.
• Do not use open ame.
• Aer the gas line installation is complete, all
connections must be tightened and checked
for leaks with a commercially available, non-
corrosive leak check solution. Be sure to rinse
o all leak check solution following testing.
Fittings and connections may have loosened
during shipping and handling.
