How old is my Triangle Tube boiler?

Serial number age decoder for Triangle Tube boilers: 1 format era, the decode rule in plain English, transcribed tables, and the official lookup.

Format eras

era not stated VERIFIED
AAAAA###AA#####

How to read the serial

era not stated formatVERIFIED

Shape AAAAA###AA##### · example INSFS155SA00698 / IN199CAA001304 / Q1754 / PS 17638 · confidence high

Documented but not evaluated by the decoder: no year decode text.

Trap: NO date encoded. Decode method = printed MM/DD/YYYY on the rating label (10/24/2023 on the example) or ANSI/CSA year; series prefix bounds the era (Instinct >= 2019, Prestige >= 2004, Smart 316 >= 2020).

Where the data plate is on a boiler

On the jacket: a plate or sticker on the front or side of the boiler casing, sometimes behind a removable front panel next to the gas valve or control.

General guidance, not brand-specific: the owner's manual or the installer can point to the exact spot. See the data plate guide.

For scale only: the InterNACHI Standard Estimated Life Expectancy Chart for Homes lists Boiler at 40 years of expected service (nachi.org). That chart is a guideline, not a prediction for your unit.

Official lookup

No online serial lookup was found for Triangle Tube in our research. The manufacturer's customer service line, the installer's invoice, or a printed date on the plate are the remaining authorities.

What we could not confirm

The era not stated format is documented but not decodable here: no year decode text.
No official online lookup URL was verified for Triangle Tube.
Sequential serials (INSFS155SA00698, IN199CAA001304, Q1754, PS 17638) cannot be decoded; the manufacture date is printed on the rating label of modern units (Instinct plate: 10/24/2023 lower left, ANSI Z21.13-2017 lower right) else call 856-228-8881. Prefix hints: INS/IN = Instinct (2019+), PS/PT/PA = Prestige generations (2004+).

Sources

https://www.building-center.org/triangle-tube-boilers-and-water-heaters/
img: Triangle-Tube-instinct-series.jpg