Parts and Accessories
Please contact 1-800-934-9690 to order Parts and Accessories.
| Part Number | Component Description | List price |
| 3628 | Solenoid Valve LPG | $95.96 |
| 1076 | Modulating Valve | $165.00 |
| 3722 | Modulating Valve Coil | $52.00 |
| 1315 | Assy-Burner | Discontinued |
| 1329 | Thermistor Harness | $18.80 |
| 1330 | Flowmeter Assy | $140.00 |
| 1331 | Power supply harness | $45.00 |
| 1375 | Pressure Relief Valve | $35.00 |
| 1411 | Igniter | Discontinued |
| 1412 | Ignition Cable | $35.00 |
| 1435 | Heat Exchanger Assy | Discontinued |
| 1436 | Thermistor Assy T-In | $30.00 |
| 1437 | Thermistor Assy T-Out | $30.00 |
| 1564 | RV500 doors (white or brushed aluminum) | $75.00 |
| 2900 | RV 500 Wind Fan | $55.00 |
| 1829 | DSI Harness | $18.50 |
| 2000 | Six Mag Rotor for RV Flowmeter | $43.20 |
| 2001 | Plastic cover for RV Flowmeter | $30.00 |
| 2002 | O ring for RV Flowmeter | $4.50 |
| 2003 | Shaft for RV Flowmeter | $10.80 |
| 2008 | Thermistor Assy T-Mid | $49.50 |
| 2028 | Relay | $10.00 |
| 2086 | ECO | $24.00 |
| 2451 | Exhaust Blower | Discontinued (Use Part Number 3333) |
| 3438 | Pressure Switch | $32.50 |
| 3369 | DSI Ignition Board, includes adapter # 3739 | $124.00 |
| 3189 | RV500 Wiring Harness Assy. | $70.00 |
| 3190 | ShowerMate Wiring Harness Assy. | $80.00 |
| 3333 | Power Vent Exh. blower kit, incl. voltage regulator | $345.00 |
| 1841-RV | Control Board w/chip | $285.00 |
| 9049F | Programmed Chip for RV-500 | $45.00 |
**Prices subject to change without notice**
| Part Number | Component Description | List Price |
| 1315 | Burner Assembly | $130.00 |
| 1436 | In Thermistor 550EC | $30.00 |
| 1437 | Out Thermistor 550EC | $30.00 |
| 3728 | Mid Thermistor 550EC | $49.50 |
| 1841-RV | Control Board 550EC | $285.00 |
| 1375 | Pressure Relief Valve | $25.00 |
| 3381 | Modulating Valve 550 | $255.00 |
| 3628 | Gas Valve | $95.96 |
| 3366 | Flexible Gas Line 550 | $17.10 |
| 2028 | Relay | $10.00 |
| 3545 | Water Inlet Tube 550 | $44.70 |
| 3223 | Gas Inlet Tube 550 | $10.00 |
| 3369 | Ignition Control Module | $124.00 |
| 3503 | Flue Outlet Screen | $4.40 |
| 3521 | Flue Tube | $14.20 |
| 3438 | Pressure Switch | $32.50 |
| 3333/550 | Power Vent Blower | $164.50 |
| 3388 | Heat Exchanger | $235.00 |
| 2086 | ECO | $24.00 |
| 3240 | Freeze Protection heat Pad Kit | $135.00 |
| 3309 | Ignition Cable | $25.00 |
| 3328 | Electrode / Igniter | $15.40 |
| 3362 | Wiring Harness 550 & NSP | $49.00 |
| 3365 | Freeze Protection Switch 550 | $32.40 |
| 3433 | 12-15 vDC Voltage Regulator | $88.00 |
| 3446 | White Door | $88.56 |
| 3531 | Unpainted Aluminum Door | $88.56 |
| 3628 | Solenoid Valve LPG | $95.96 |
| 3673 | Flowmeter | $34.00 |
| 3722 | Modualating Valve Coil EC | $52.00 |
| 3734 | Black door | $88.56 |
| 3670 | 550 Wiring Harness NSP EC | $44.56 |
| 3671 | 550 Wiring Harness EC | $44.56 |
| 9049F | Programmed Chip for RV550 EC | $45.00 |
| 1076 | Modulating Gas Valve 550EC | $165.00 |
| 1329 | Thermistor Harness 550EC | $18.80 |
| 1329S | Thermistor Harness NSPEC | $18.80 |
**Prices subject to change without notice**
| Part Number | Component Description | List Price |
| 3628 | TwinTemp Gas Solenoid LPG | $95.96 |
| 1076 | 3/8" LPG Modulating Gas Valve Assy. | $125.00 |
| 3722 | Modulating Valve Coil | $52.00 |
| 1411 | Spark Ignition Probe 2004 thru 7/2014 | Discontinued |
| 3328 | Spark Ignition Probe 8/1/2014 & Newer Model (new style) | $15.40 |
| 1412 | Wire, Ignition Cable (yellow) | Discontinued |
| 3309 | Ignition Wire (black) | $25.00 |
| 1437 | T-out Thermister (red wires) | $30.00 |
| 1495 | Thermistor Wiring Harness | $29.95 |
| 1749 | Bimetal ECO 1/8" NPT @ 220° F +/- 7 auto reset at 170° F | $24.00 |
| 1829 | DSI Wiring Harness | $18.50 |
| 3728 | Mid Thermistor assembly, models after 7/29/2014 | $49.50 |
| 3207 | Assembly T-Mid (yellow wire), prior to 7/29/2014 | $49.50 |
| 2028 | Relay, Omron | $10.00 |
| 2123 | Tempering Valve w/Flanges, all models prior to 3/2007 | $155.00 |
| 2162 | 200 deg. Bimetal tank Thermostat (Electric Elements) | Discontinued |
| 2248 | Electric Heating Element | $45.00 |
| 2271 | “C” Model TT Tank Assembly | Discontinued |
| 2451 | Power Vent Blower Motor Assy. Kit | Discontinued |
| 2464 | 15 Amp Circuit Breaker | $6.50 |
| 2558 | Room Thermostat / Wall Mount | $50.00 |
| 2559 | 190 deg. Bimetal tank Thermostat (Used thru 6/2009) | $29.50 |
| 2582 | Bleeder Valve | Discontinued |
| 2582 | Air Bleeder Vent | Discontinued |
| 2735 | Magnetic Drive Pump Brushless 12 VDC | Discontinued (Use Part Number 3650) |
| 2737 | Summer/Winter Ball Valve | $60.00 |
| 2748 | 1/2 Heater Hose Elbow | Discontinued |
| 2751 | On/Off switch TT2 & Jr. | $5.88 |
| 2838 | Low Profile Secondary Liquid to Air Heat Exchangers with Two Fans | $150.00 |
| 2932 | Heat Exchanger (Specify 'G', 'F' or 'C' Model) | Discontinued |
| 3388TT | Heat Exchanger TT2 & Jr. | Discontinued |
| 2940 | Pressure Switch, .1 WCI Vacuum | Discontinued (Use Part Number 3438) |
| 2942 | Complete Wire Harness for TT-2 | $125.00 |
| 2950 | 220 deg. Switch, High Limit, Manual Reset (used w/Electric element) | $45.28 |
| 2984 | 10vDC Blower Voltage Regulator | Discontinued |
| 3012 | Complete Wire Harness for TT-Junior | $112.00 |
| 1315 | Burner Assembly | $130.00 |
| 3033 | 7 psi Radiator Cap | $7.40 |
| 3121 | Liquid to Air Heat Exchanger with One Fan | $105.00 |
| 3122 | Liquid to Air Heat Exchanger with One Fan and Thermostat | $130.00 |
| 3128 | Tempering Valve (shark bite fittings ) | $375.00 |
| 3369 | DSI Board (note: units produced before 2016 specify adapter #3739) | $124.00 |
| 3227 | Pressure Relief Valve 3/4 npt set @ 30 psi | $56.00 |
| 3246 | Retro Fit "C" model pump kit | Discontinued |
| 3264 | 185 deg.Tank Thermostat Retrofit Kit includes Relay (replaces Part Number 2559) | $100.00 |
| 3328 | Electrode / Igniter (8/2014 and newer) | $15.40 |
| 3333 | Power Vent Blower Motor Assy. Kit includes Voltage Regulator | $345.00 |
| 3438 | Pressure Switch, .1 WCI Vacuum | $32.50 |
| 3471 | Tank Thermostat & Electric ele. Thermostat switch ECO 185 degree | $55.00 |
| 3471&3461 | 185 deg. Bimetal Tank Thermostat ECO Retro kit (replaces part number 2559) | $65.00 |
| 3497 | TwinTemp Jr. SS Tank Assy. Complete | $1,650.00 |
| 3499 | TwinTemp 2 SS Tank Assy. Complete | $1,975.00 |
| 3650 | Drive Pump, models after 6/2016 | $295.00 |
| 3722 | Modualting Valve Coil | $52.00 |
| 9098 | Micro Processor Software Chip | $35.00 |
| 1841-TT | Control Board & Microprocessor for TwinTemp | $285.00 |
| 2004&2005 | On/Off Switch w/Cover “C” Model TwinTemp | $16.60 |
| 2634 | 3 Way Valve for Hot and Cold Water Lines | $32.00 |
**Prices subject to change without notice**