Lennox Hearth L20 BF-2 Gas Heater User Manual


 
SPECIFICATIONS: Model L20 BF-2
PAGE 27
Flue Size 4” - Top Vent
Height Overall 29”
Height to Flue
Outlet 28 ¾”
Width 23”
Depth 15”
Fuel Natural Gas (standard)
(or) LP Gas (convertible).
Gas inlet 3/8” NPT-Male / Flex Line
(or) remove flex, 3/8” NPT–Female Flare.
Performance Variable Flame Control.
Features High Efficiency Heat Exchanger.
Natural Convection & Radiant Heat.
Standing Pilot / Operates During Power
Outages. Remote Control & Wall
Thermostat Capable.
Technical Honeywell Combination Gas Control
Features Valve, Millivolt - VS8520E. Safety Shut
Down Sensor (Spill Switch).
Pan Burner with Tuned Ports.
Radiant & Fan Assisted Convection
Heat.
Safety Test Tested and certified by CSA to ANSI standards.
Z21.88a-2003 CSA 2.33a - M98-2003. Vented
Gas Fireplace Heater
Heat Input 17,000 to 26,000 BTU’s (Nat. Gas)
17,000 to 24,000 BTU’s (Propane)
Ship Weight 185 lb.’s
Dimensions shown are approximations only (+ / - ¼”)
Top View
Side View
SPECIFICATIONS
GAS TYPE NATURAL GAS PROPANE (LP) CLEARANCES TO COMBUSTIBLES
Orifice Size #40 -.098 #53-.0595” Back Wall Min. 2 In. / 51 mm
Minimum Supply Pressure 4.5” WC 10.5” WC Side Wall Min. 12 In. / 305 mm
Maximum Supply Pressure 10.5” WC 13.0” WC Corner (45° angle)s
HIGH SETTING stove corner to wall, min. 2 In. / 51 mm
Manifold Pressure 3.5” WC 10.0” WC Ceiling Height Minimum 65 In. / 1651 mm
Input BTU/HR 26,000 24,000 Alcove Min. Height 65 In. / 1651 mm
LOW SETTING Alcove Min. width 47 In. / 1194 mm
Mainfold Pressure 1.8” WC 6.6” WC Alcove - Max. Depth into
Input BTU / HR 17,000 17,000 stove face to alcove opening 24 In. / 610 mm
Altitude - U.S.A. 0-4,500 Ft. (0-1372M) No derating
Altitude - Canada 0-4,500 Ft. (0-1372M) No derating
For installation higher than altitudes shown above, reorifice per Gas Codes.
* With the orifice, manifold pressure and input ratings shown
above.
This Appliance is equipped at the factory for the use with Natural Gas or Propane (LP). Appliances using propane must be field conversed using
the LP Conversion Kit supplied with appliance.