Intry Verified receipt
Is the Intry Gas Pipe Sizing Calculator accurate?
The provenance receipt for the Intry Gas Pipe Sizing Calculator: the exact authority its values derive from, the edition they are keyed to, who has final say, and what the deploy gate actually checks them against, re-derived from their cited source.
Short answer: Every figure an Intry calculator computes comes from a locked source module, not hand-typed. 21026 automated checks re-derive and source-check the numbers against the fuel gas code Chapter 4 sizing equation and the Cr values it prints, which it was computed from before each deploy. This is our own deterministic gate, not a third-party audit. The per-tool receipt is public at https://www.intrysys.com/verified.
The receipt
- Calculated from
- the fuel gas code Chapter 4 sizing equation and the Cr values it prints, which it was computed from. Reused verbatim from the locked engine, never re-written for this page.
- Checked
- Before any deploy, a deterministic test suite re-derives calculated figures from their locked source module and source-checks the numbers against what they cite, so a number is held to its real source, not just to itself. As of the current build that suite holds 21026 checks, and it gates this page too. This is our own deterministic gate, not a third-party audit.
- Runnable
- A reference engine that powers the published numbers. It is not exposed as a runnable MCP tool.
- Final say
- The authority having jurisdiction and the appliance manufacturer's instructions have final say. This computes the code-required size and never certifies an installation: a real problem is confirmed by a manometer reading at the appliance inlet under full load.
Frequently Asked Questions
Is the Intry Gas Pipe Sizing Calculator accurate?
Every figure an Intry calculator computes comes from a locked source module, not hand-typed. 21026 automated checks re-derive and source-check the numbers against the fuel gas code Chapter 4 sizing equation and the Cr values it prints, which it was computed from before each deploy. This is our own deterministic gate, not a third-party audit. The per-tool receipt is public at https://www.intrysys.com/verified.