{"id":"unit-heater-gas","version":"0.1.0","classification":{"uniformat":"D3050"},"names":["Unit heater, gas-fired"],"aliases":["gas unit heater","UH"],"service_life":{"median_years":20,"range_years":[20,20],"range_basis":"source_spread"},"pm_tasks":[],"basis":[{"type":"public_document","life_type":"accounting","title":"Greater Napanee: By-law 2012-11, Tangible Capital Asset Policy, Appendix B Asset Useful Lives","url":"https://greaternapanee.civicweb.net/document/45679","page":16,"label":"E20 Mechanical - Boilers, Fire Panel/Alarm, Unit Heaters, HVAC","years":20,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page. The row names unit heaters among other mechanical items, without the fuel."}],"confidence":{"grade":"C","sample_size":null},"open_questions":["These are Ontario accounting lives from municipal capital asset policies, not planning or observed replacement data.","No preventive maintenance tasks are sourced yet."],"contributors":["unfinished.one editors"],"last_reviewed":"2026-10-21","canonical_url":"https://unfinished.one/c/unit-heater-gas","versioned_url":"https://unfinished.one/c/unit-heater-gas/v/0.1.0","licence":"CC-BY-4.0","citation":"unfinished.one (2026). Unit heater, gas-fired, v0.1.0. https://unfinished.one/c/unit-heater-gas/v/0.1.0"}