I need a step-by-step chimney safety check process checklist that complies with NFPA 211 for historic commercial brick fireplaces.
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
I need a step-by-step chimney safety check process checklist that complies with NFPA 211 for historic commercial brick fireplaces.
3 real searches · 1 real-search pass
NFPA 211 current edition 2026 standard chimney fireplaces vents solid fuel burning appliances inspection levels historic masonryGoogle ↗
OBSERVEDReason
CSIA chimney inspection levels NFPA 211 Level 1 Level 2 Level 3 officialGoogle ↗
OBSERVEDComparison
NFPA 211 masonry chimney fireplace clearance combustible materials firebox smoke chamber flue liner officialGoogle ↗
OBSERVEDReason
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (3)
Classes come from the query-classifier (a local Laya model). 3 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT3 real searches · gpt-6
NFPA 211 current edition 2026 standard chimney fireplaces vents solid fuel burning appliances inspection levels historic masonry Google ↗
CSIA chimney inspection levels NFPA 211 Level 1 Level 2 Level 3 official Google ↗
NFPA 211 masonry chimney fireplace clearance combustible materials firebox smoke chamber flue liner official Google ↗
- Level 1 Inspection of a masonry chimney · web.csia.org
- AGENDA NFPA Technical Committee on Chimneys, Fi · docinfofiles.nfpa.org
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
NFPA 211 current edition 2026 standard chimney fireplaces vents solid fuel burning appliances inspection levels historic masonry OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
CSIA chimney inspection levels NFPA 211 Level 1 Level 2 Level 3 official OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 | |
NFPA 211 masonry chimney fireplace clearance combustible materials firebox smoke chamber flue liner official OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |