www.desatech.com117437-01D 5LOGS• If you remove logs for cleaning, refer toInstalling Logs and Glowing Embers, page19, to properly replace logs.• Use a vacuum cleaner to remove anycarbon.buildup.on.logs.•. Replace.log(s).if.broken..See.ReplacementParts,.page.31.•. Replace. ember. material. periodically. as.needed..See.Replacement Parts, page 31.VENTING SYSTEMConduct. annual. inspection. of. the. venting.system.following.these.guidelines:1.. Check.areas.of.venting.system.that.are.exposed. to. the. weather. corrosion. (rust.CLEANING AND MAINTENANCEContinuedspots or streaks and in extreme cases,holes).. Have. these. items. replaced. im-mediately by a qualified service person.2. Remove the vent cap and shine a flashlightinto.vent..Remove.any.foreign.material.3.. Check. for. evidence. of. excessive. con-densation..Continuous.condensation.can.cause corrosion of caps, pipes and fittingsand.can.be.caused.by.having.excessive.lateral runs, too many elbows or exteriorportions.of.the.system.being.exposed.to.cold.weather.4. Inspect joints to verify that no pipe sec-tion or fitting has been distributed andloosened.. Check. mechanical. supports.such.as.wall.straps.for.rigidity.SPECIFICATIONS(V)CB36N• Maximum Input Rating: 18,000 Btu/hr•. Gas.Type:.Natural• Orifice Size (Main Burner): #45 DMS(0.08")•. Ignition:.Millivolt•. Manifold.Pressure:.3.5".w.c..(0.87.kPa)•. Min..Inlet.Supply.Pressure:.5.5".w.c..(1.1.kPa)(V)CB36P• Maximum Input Rating: 18,000 Btu/hr•. Gas.Type:.Propane/LP• Orifice Size (Main Burner): #55 DMS(0.05")•. Ignition:.Millivolt•. Manifold.Pressure:.10".w.c..(.5.kPa)•. Min..Inlet.Supply.Pressure:.11".w.c..(.7.kPa)(V)CB36NE• Maximum Input Rating: 18,000 Btu/hr•. Gas.Type:.Natural• Orifice Size (Main Burner): #45 DMS(0.08")•. Ignition:.Electronic•. Manifold.Pressure:.3.5".w.c..(0.87.kPa)•. Min..Inlet.Supply.Pressure:.5.5".w.c..(1.1.kPa)(V)CB36PE• Maximum Input Rating: 18,000 Btu/hr•. Gas.Type:.Propane/LP• Orifice Size (Main Burner): #55 DMS(0.05")•. Ignition:.Electronic•. Manifold.Pressure:.10".w.c..(.5.kPa)•. Min..Inlet.Supply.Pressure:.11".w.c..(.7.kPa)ALL MODELS• Fireplace Dimension HxWxD (Actual size of firebox measurements do not include nailingflanges or standoffs): 35.75" x 36.25" x 14.75" (90.8 x 92.1 x 37.5 cm)•. Carton.Dimension.HxWxD:.36.75".x.38".x.16.5".(93.3.x.96.5.x.41.3.cm)SERVICE HINTSWhen Gas Pressure Is Too Low•. pilot.will.not.stay.lit•. burners.will.have.delayed.ignition• heater will not produce specified heat• for propane/LP units, propane/LP gas sup-ply.may.be.lowYou.may.feel.your.gas.pressure.is.too.low..If.so, contact your local natural or propane/LPgas.supplier.TECHNICAL SERVICESYou.may.have.further.questions.about.installa-tion, operation, or troubleshooting. If so, con-tact DESA Heating, LLC at 1-866-672-6040.When. calling. please. have. your. model. and.serial.numbers.of.your.heater.ready.You can also visit DESA Heating, LLC’s website.at.www.desatech.com.