Stiebel Eltron parts are factory-direct — sold through Stiebel Eltron USA tech support and authorized distributors. Common wear items (elements, sensors, filters) are stocked; specialty parts (control boards, contactor assemblies) typically ship from the factory.
Where to buy Stiebel Eltron parts
- Stiebel Eltron USA tech support: 1-800-582-8423 — primary source for warranty and out-of-warranty parts
- stiebel-eltron-usa.com — parts catalog with online ordering for some items
- SupplyHouse.com / PEX Universe — common wear items in stock
- Amazon — limited Stiebel parts; mostly Mini and SHC accessories
- F.W. Webb plumbing wholesale — contractor-channel parts source
Common parts (linked pages)
- Heating element — Tempra Plus, DHC, SHC elements by wattage
- Flow sensor — impeller-and-hall sensor for tankless flow activation
- Thermostat / NTC sensor — inlet, outlet, and tank temperature sensors
- Control board — main electronic control assembly
- Inlet filter — strainer at cold water inlet
- Element resistance test guide — diagnostic procedure for failed heating
Parts not user-serviceable
- Accelera compressor / refrigerant system — sealed; EPA-certified HVAC tech required
- Tempra Plus contactor assembly — high-voltage; contractor-only replacement
- Mini under-sink element — integrated; full unit replacement
- SHC glass-lined tank — if tank fails, replace unit
OEM cross-references
| Part type | Stiebel OEM | Notes |
|---|---|---|
| NTC temperature sensors | 10kΩ NTC specific to platform | Generic 10kΩ NTC may substitute after resistance verification, but Stiebel OEM is preferred for fit |
| Heating elements (Tempra) | Solid copper, model-specific wattage | OEM only — not interchangeable with US-market tankless elements |
| Flow sensors | Stiebel proprietary | OEM only |
| Anode rod (Accelera, SHC) | Standard ¾" NPT magnesium | Universal aftermarket fits |
Bottom line
Stiebel parts run through tech support and authorized distributors. Generic substitutes work for anode rods and some sensors after resistance verification. Heating elements, flow sensors, and control boards are OEM-only.