Intry Verified receipt
Is the Intry Furnace Temperature Rise Calculator accurate?
The provenance receipt for the Intry Furnace Temperature Rise Calculator: the exact authority its values derive from, the edition they are keyed to, who has final say, and what our automated checks hold them against, rebuilt from their cited source.
The receipt
- Calculated from
- Your unit's rating plate (the temperature rise range) · Carrier Service and Technical Support Manual 440 04 4321 10, gas furnace (F/G)9MXT · Velocity Boiler Works Installer's Information Manual 431570g, Section 20 · The sensible-heat relation, for the airflow figure only · 10 CFR 430.2, for what AFUE is and is not. Reused verbatim from the locked engine, never re-written for this page.
- Checked
- Before any release, an automated check rebuilds the calculated figures from the locked engine that produces them and holds each one against the source it cites, so a number answers to its source and not merely to itself. As of the current build that suite holds 29291 checks, and this page has to clear them too. This is our own deterministic gate, not a third-party audit.
- Runnable
- A reference engine behind the published numbers on this site. Runnable access is offered on the calculators exposed at the Intry MCP endpoint.
- Final say
- The rating plate and the manufacturer's installation instructions for your model have final say, and a combustion analysis is what confirms the furnace is safe. A rise inside the plate band is not a clean bill of health.
Frequently Asked Questions
Is the Intry Furnace Temperature Rise Calculator accurate?
Every figure an Intry calculator computes comes from a locked source module, not hand-typed. 29291 automated checks re-derive those figures and re-check the manufacturer method this tool applies before each deploy. The standard it judges your reading against is the temperature rise range printed on the unit's own rating plate, which you supply, so no check of ours can confirm that what you entered is what is printed on your equipment. This is our own deterministic gate, not a third-party audit. The per-tool receipt is public at https://www.intrysys.com/verified.