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Utilhex 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.

Utilhex compared with Age by Serial Number
DetailUtilhex logo UtilhexAge by Serial Number logo Age by Serial Number
What it doesEveryday tools. One place. Find how old a water heater, furnace or air conditioner is from its serial number
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Free
PricingNot given Not given
Key features
  • Merge and split PDFs
  • Format and validate JSON, XML, YAML, SQL
  • Convert images between formats
  • Decode JWTs and convert between data formats
  • Count words and convert units
  • 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
  • All processing happens in your browser with no file uploads
  • No account, sign-up, or usage quotas required
  • No tracking cookies and honest privacy practices
  • Clear documentation of tool limitations and capabilities
  • Honest results with no unnecessary processing
  • 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)Not checked yet no change since last check1 no change since last check
Trust Flow (Majestic)01
Citation Flow (Majestic)1417
Referring domains (Majestic)14

4 details filled in for both companies.

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