Age by Serial Number vs PursTech

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

Age by Serial Number compared with PursTech
Detail	Age by Serial Number	PursTech
What it does	Find how old a water heater, furnace or air conditioner is from its serial number	51 free online tools with no login, no limits, and no account required
Stage	Not given	Startup
Founded	Not given	2025
Based in	Not given	Not given
Pricing model	Free	Free
Pricing	Not given	All 51 core tools are permanently free. PursTech Pro is available for $7/month with unlimited usage, zero ads, priority AI processing, API access, and batch processing.
Key features	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	JSON formatter and regex tester for developers PDF compression, merging and splitting Grammar checking and readability analysis Meta tag and sitemap generators for SEO Password generator and SSL certificate checker Financial calculators for loans and mortgages
What makes it different	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	All 51 tools run entirely in your browser with no data uploads to servers No signup, no login, no account required to use any tool Unlimited daily usage with no caps, watermarks or paywalls Fast, instant results delivered as you type Mobile-responsive design that works on all devices
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	1	0
Citation Flow (Majestic)	17	4
Referring domains (Majestic)	4	6

4 details filled in for both companies.

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