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Heretool vs Age by Serial Number

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Heretool compared with Age by Serial Number
DetailHeretool logo HeretoolAge by Serial Number logo Age by Serial Number
What it doesFree online tools right here - no cost, no hassle Find how old a water heater, furnace or air conditioner is from its serial number
StageStartup Not given
Founded2026 Not given
Based inNot given Not given
Pricing modelFree Free
PricingNot given Not given
Key features
  • 100+ web tools across 8 categories
  • No account creation required
  • Local data processing for privacy
  • Works on all devices and browsers
  • Weekly tool updates and additions
  • File format converters
  • SEO and developer utilities
  • Mathematical calculators and generators
  • Water heater serial number decoders for Bradford White, A.O. Smith, State, American, Whirlpool, Rheem, Ruud, Lochinvar
  • Furnace and air conditioner decoders for Goodman, Amana, Lennox, Carrier, Trane, American Standard
  • Water heater and furnace error code lookups
  • Water heater sizing calculator for tank and tankless models
  • Rheem water heater status light meanings
  • Goodman furnace LED flash code reference
  • Rinnai V53De tankless water heater code lookup
  • Rheem tankless water heater code lookup
What makes it different
  • Completely free with no hidden fees or premium paywalls
  • All data processed locally in browser, never stored on servers
  • Instant access without installation or registration
  • Fast, intuitive interfaces designed for ease of use
  • Regularly updated with new tools based on user feedback
  • Independent reference not affiliated with or endorsed by any manufacturer
  • Distinguishes manufacture date from installation date and emphasizes condition and maintenance over age
  • Covers safety guidance including gas smell warnings and professional contractor recommendations
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)3 −1 (down) since last check1 no change since last check
Trust Flow (Majestic)01
Citation Flow (Majestic)1717
Referring domains (Majestic)224

4 details filled in for both companies.

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