Pathline Products Fireplace Doors For Heatilator Fireplace Fits E42, E-42I, EC42, EC-42I, EL42 Please Do Not Order Unless Your Model Matches One Listed. These doors will not fit your unit unless you have one of the models listed. Sometimes A Tag Containing Model#, Make, Date Of Manufacture Can Sometimes Be Found On Inside Sheet Metal Wall Of Firebox. Inside Frame Measurement Requirement: Width: 42" Height: 20-3/4" to 21-1/4" Available In 3 Finishes (Black, Silver, Polished Brass)