Westinghouse manuals are hosted at westinghousewaterheaters.com and through the US Craftmaster service network. Printed manuals ship with new units.
Where to download
- westinghousewaterheaters.com → Documentation → search by model number
- Westinghouse tech support: 1-800-388-0006 — emails PDF manuals within hours
- Amazon product listings often link to manufacturer PDFs
- Home Depot online product pages link to manuals
- SupplyHouse.com / PEX Universe product pages
Documents by line
- Stainless Electric WER — single manual covers 40/50/80-gal residential
- Stainless Gas WGR atmospheric — separate manual; chimney sizing tables
- Stainless Gas WGRPV Power Vent — PVC venting requirements emphasized
- Gas Tankless WGRGH — extensive: venting, gas line sizing, descaling, fault codes
- Electric Tankless WET — service panel requirements by model, wire gauges
- Heat Pump WH HP — air space, condensate, mode operation, IRA registration
Critical sections to read
- Electrical sizing tables (especially WET electric tankless)
- Gas line sizing (gas tankless and Power Vent)
- Venting requirements (Power Vent and gas tankless)
- Initial fill-up procedure (prevent dry-fire on electric)
- Warranty registration instructions
- Fault code troubleshooting matrix
Bottom line
Use the model-specific manual. Westinghouse documentation is comprehensive — fault code matrices, sizing tables, and step-by-step install procedures are all included. The gas tankless manual is the most important to retain for annual descaling reference.