The Dassel RF model (ONLY) comes standard with
Sandstone refractory, remote modulating valve system w/flame & fan adjustment. (fan kit & remote control included)

26,000 BTU/hr Input - NG & 24,000 BTU/hr Input - LP   High Efficiency: Natural Gas - 65% LP Gas - 71%   Canada P-4 Approved   High Quality, Quick-Latch, Lifetime Borofloat ?Glass (23¾" X 30 ¼" )   Refractory Brick Lining (RF model only)   Automatic Fan kit (1) -75 CFM (RF model only)   High-Low Regulator   Speed Control with Receptacle Assembly   Patented Log Design   Engineer-designed burner system   Minnesota Energy Code Compliant to 50 pascals   Renaissance Pattern Front   Renaissance, Drake, Young or Astoria Design Full Door Faces   Mission Design Doors   Refractory Brick Lining - Original Sandstone* or Red colored.   Automatic Fan kit (1) -75 CFM*   Remote Control* or Thermostatic Remote Control   Wall Thermostats (not for use on RF model)   4 Styles of Cabinets, Corner Cabinets & Flush Surrounds     *Standard on the RF model

Please Download the Princeton’s Installation Manual for Venting and Clearance Requirements