Question 1

Is this every Navien permit?

Accepted Answer

No. These are the 1,786 permits across 12 metros where "Navien" was detected by name in the permit description — not a complete census of Navien installations. Many Navien jobs never name the brand in the permit text, and we only count covered metros. Treat the counts as a high-confidence floor of detected mentions, not a total.

Question 2

How is "Navien" detected in a permit?

Accepted Answer

We run named-entity recognition over the permit description and scope text and keep only high-confidence matches. A permit is attributed to Navien when the brand is named explicitly in that text; permits that installed Navien equipment without naming it are not counted.

Question 3

What can I do with this?

Accepted Answer

Use the metro, segment, and contractor breakdowns to see where this brand is being installed and replaced, and which contractors install it — equipment-replacement intelligence drawn from the permits that name the unit (mostly residential and small-commercial). Per-permit signal (address, scope, contractor, status, geocode, DQ flags) is queryable per row via the API.

Address	Metro	Issued
2904 Balfour Falls Ln, Austin, TX 78748	Austin	2020-03-10
3746 1st Ave S	Minneapolis	2022-03-21
9926 W El Dorado Dr, Maricopa County, AZ 85351	Phoenix	—
3020 Williamsbridge Road, Bronx, NY 10467	New York City	2026-06-01
153 Prospect Park Southwest, Brooklyn, NY 11218	New York City	2025-09-03
1234 Elder Avenue, Bronx, NY 10472	New York City	2025-09-09
4226 Zenith Ave S	Minneapolis	2026-08-10
914 Pelham Parkway, Bronx, NY 10462	New York City	2025-01-28
7500 5 Avenue, Brooklyn, NY 11209	New York City	2025-12-08
	Nashville	—

Navien — permits where it was detected.

Where Navien was detected, by metro.

Where Navien was detected, by segment.

Contractors most often named alongside Navien.

A sample of permits where Navien was detected.