[. . . ] Also, eliminating chase increases living space and affords greater interior layout flexibility. Easy, One-Person Installation There's no pre-installation assembly required. To reduce weight during installation and maximize serviceability, mechanical and electrical assemblies are located on the back of the unit and attached after vent termination is installed. Cut Opening Install Vent Termination Featuring UC1 Burner Interlock Control s Simplifies new installations and service calls since operation and wiring interlock problems are diagnosed and displayed through LED indicators. s Prover switch delay eliminates burner start up or wind induced prover switch short cycling. [. . . ] Surrounding combustible surfaces and exhaust gases are kept at safe temperatures by pulling outdoor air into its casing and mixing it with the flue gases during operation. After each burner cycle the SS1 will continue to operate for an adjustable period to purge the heater and vent of residual gases. The SS1 features a 3-way safety system consisting of the UC1 Interlock Control, Fan Proving Switch and High Limit. These devices monitor the SS1 performance and will disrupt the burner if a vent system malfunction is detected. Electrical Typical Burner Interlock with Aquastat Adjustable draft control Stainless Steel vent hood Flue gases Factory-wired controls SideShot 1 Application Tables Verify that the total BTU/hr. input of the heating appliance(s) fall within the proper category listed below. Please note the maximum equivalent feet and capacity differs between the SS1 and SS1C. To determine equivalent feet, add the total length of straight vent pipe plus 10 feet for each 90 degree elbow and 5 feet for each 45 degree elbow. Vent runs of over 15 linear feet should use an approved, insulated vent connector to prevent problems related to sulfur condensation. Note: The SS1 features a bottom or rear vent connection. The inlet collar accepts any brand or type of 6" diameter vent pipe. Power Requirement: Maximum of 2. 8 amps Motor HP: 1/10 Pre-purge: Options (0, 5, 20, 35 seconds) Post-Purge: Factory set at 2 minutes, Options (0, 30 seconds or 1, 2, 4, 8, 16 minutes) Dimensions A B C D E F G H I 27-3/8'' 16-1/2'' 12-1/4'' 8'' 13-3/4'' 15-1/8'' 7-3/4'' 14-3/4'' 23-1/4'' MODEL Natural LP Gas Flame Retention Oil Burner Standard Oil Burner Max. Equivalent Feet SS1 50, 000 - 160, 000 70, 000 - 220, 000* 70, 000 - 180, 000* BTU/hr. BTU/hr BTU/hr. 50 SS1C For Capacities Up To 315, 000 BTU/hr. MODEL Natural LP Gas NA Flame Retention Oil Burner Standard Oil Burner Max. Equivalent Feet SS1C 50, 000 - 315, 000* 50, 000 - 223, 000* BTU/hr. input based on nozzle size and actual pump pressure. Note: The SS1 requires an 8"H x 8 3/8"W opening through the wall. Whisper quiet, 2nd generation vent system Indoor Draft Adjustment Precise draft is achieved by simply turning knob located on back of unit. No Annual Maintenance Self-cleaning stainless steel impeller and sealed ball bearing motor make the SS2 virtually maintenance free. Backward inclined impeller blades resist soot build up, reducing vibration and noise problems. [. . . ] input of the heating appliance(s) falls within the proper category listed below. To determine equivalent feet, add the total length of straight vent pipe plus 10 feet for each 90 degree elbow and 5 feet for each 45 degree elbow. Vent runs of over 15 linear feet should use an approved insulated vent connector to prevent problems related to condensation. NOTE: BTU inputs less than 105, 000 may require use of insulated vent pipe for linear runs exceeding 10 feet. MODEL Flame Retention Oil Burner 70, 000 - 168, 000* Fan Assisted Natural & LP Gas 40, 000 - 150, 000 BTU/hr Atmospheric Natural & LP Gas 40, 000 - 125, 000 BTU/hr Max. [. . . ]