SerialCheck: Age Decoder

SerialCheck helps you easily find the age of water heaters, furnaces, and outdoor AC units by decoding their serial numbers. This simple, offline app is designed for home inspectors, property managers, and service pros who need fast and accurate answers—no login required, no ads, and no data collection.

Key Features:
• Fast Age Decoding: Quickly determine the age of common water heaters and HVAC units.
• Simple Guided Entry: Choose the appliance type, enter serial/model information, and get results instantly.
• Copy and Share Results: Share the decoded age in a readable format.
• Works Offline: Perfect for use in low-signal or no-signal environments.
• Focused Coverage: Narrowed to the most common appliance types for better accuracy and speed.

Supported Appliances:
• Water Heaters: Includes top brands like Rheem, Bradford White, AO Smith, and many more. Targets over 90% of water heaters in the US.
• Furnaces: Supports brands like Lennox, Goodman, Trane, Carrier, and more. Coverage targets 75%+ of furnaces.
• Outdoor AC Units: Includes Goodman, Lennox, Rheem, and other major manufacturers.

Supported brands (by category):
Water Heaters:
Bradford White, Jetglas, AO Smith, Permaglas, Glascote, American Water Heater, Champion, Riviera, Aquamatic, Aqua Therm By American Water Heater, Raywall, Best Deluxe, King-Line, Whirlpool, Enviortemp, Deluxe, Prestige, Sentinel, Proline, Proline-Plus, Aqua Temp, Premier, Nationaline, King-Cleen, Revere, Apex, Navien, Rinnai, Rheem, Richmond, Vista Therm, Aqua Therm By Rheem, Energy Master, Intertherm & Miller, Citation, ABS, Mainstream, Cimarron, Servistar, Van Guard, True Value, Ruud, Coast To Coast, Montgomery Ward, State, Kenmore, Freedom, Freedom/Nipsco, Ambassador, Ace, Barnett, Crosley, Century, Nationaline By State, President, Energy Stretcher, Thermo-Ki, Regency, Reliance, Mission
Furnaces:
Lennox, Armstrong, Armstrong Air, Airease, Ducane, Concord, Magicpak, ADP, Goodman, Amana, Daikin, Janitrol, Carrier, Bryant, Payne, ICP, Comfortmaker, Heil, Tempstar, Arcoaire, Airquest, Keeprite, Keep Rite, Day And Night, Trane, American Standard, Runtru, Oxbox, Ameristar, Rheem, Ruud, Weatherking, Weather King, Sure Comfort, Surecomfort, York, Coleman, Luxaire, Guardian, Champion, Fraser-Johnston, Evcon
AC Outdoor Units:
Lennox, Armstrong, Armstrong Air, Airease, Ducane, Concord, Magicpak, ADP, Goodma