Robertshaw ignition control units used in the Uni-Line 712 Series kits are C.S.A. design certified to applicable A.N.S.I. standards. CSA Approved.Product Specifications BRANDRobertshaw TEMPERATURE CONTROL RANGE °F-40 to 175 APPLICATIONIgnition Unit GAS VALVE-- LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERSP745