{"data":{"id":"us/14-cfr-25.833","jurisdiction":"us","citation":"14 CFR 25.833","heading":"Combustion heating systems.","body":"Combustion heaters must be approved.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES","Subpart D—Design and Construction"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-14.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:20Z","sha256":"6eab28ef95351dfcd1d6fa51c01336db64e8ad7a5a23f5332f5c60ade5887f39","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-25.832","next":"us/14-cfr-25.841"},"notice":"GroundRules: Original legal text. Not legal advice."}