{"conditions":[],"costTypeSubtotals":{"Allowances":93500,"Dump fees":6500,"Labor":125100,"Materials":16000},"currency":"USD","date":"2026-10-12","directCostCents":241100,"explicitStates":{"completenessState":"PROPOSED: frozen draft has 10 stored lines and no separately assessed tax or contingency.","contingencyTreatment":"PROPOSED: excluded, not assessed.","markupBase":"Direct job cost.","taxTreatment":"PROPOSED: excluded, not assessed."},"exporterVersion":"3","id":"water-heater-gas-tank-50/v1","labor":{"coverage":"PROPOSED: labor rows cover only stored Labor cost-type lines; Subcontract rows are the subcontractor's all-in price to the contractor.","rateBasis":"Loaded labor rates for a mid-market residential contractor (wages plus employer burden), median U.S. market; supply-and-install coverage as stated per row."},"license":{"policy":"Clamp permits attributed citation, quotation and reproduction of this published example, including commercial editorial use, contractor project estimating, research, search indexing, and retrieval or caching used to produce attributed answers. This permission does not authorize republication of substantially all Clamp-authored snapshot content as a competing commercial cost-reference collection, whether assembled from one or multiple snapshots. Contact Clamp for that permission. These terms apply only to rights Clamp owns or may license. They do not restrict independent facts, independently developed data, fair use or other statutory rights. Third-party material remains subject to its applicable terms. Attribution should identify Clamp, the scenario/version and its canonical URL. Clamp Snapshot Rights Policy 1.0, working draft subject to counsel review.","redistributionClearance":"All published inputs are Clamp’s internal researched baseline (multi-source AI research synthesized by Clamp); no third-party licensed datasets are incorporated.","reference":"Clamp Snapshot Rights Policy 1.0","version":"Clamp Snapshot Rights Policy 1.0"},"licenseReference":"Clamp Snapshot Rights Policy 1.0","licenseVersion":"Clamp Snapshot Rights Policy 1.0","limitations":["Modeled examples are not bids, completed-job records, or national averages.","Rates are researched baselines with stated windows; local quotes vary.","Typical conditions are assumed.","Permit and inspection fees are excluded; requirements vary by jurisdiction."],"markupIllustrations":[{"grossMargin":0.23076923076923075,"markup":0.3,"sellingPriceCents":313430},{"grossMargin":0.3333333333333333,"markup":0.5,"sellingPriceCents":361650},{"grossMargin":0.4444444444444445,"markup":0.8,"sellingPriceCents":433980}],"modifierInputsVersion":"e88dbfa9","rateInputsVersion":"e88dbfa9","rateObservationWindow":{"end":"2026-10-06","start":"2026-10-06"},"review":{"approvalTimestamp":"","reviewDate":"","reviewer":"Emmanuel Forge","scope":"PROPOSED: scope selection, arithmetic, and provenance mapping; not independent market-rate verification"},"rows":[{"assembly":{"name":"Water Heater System","version":"e88dbfa9"},"componentExtendedCosts":{"laborCents":0,"materialCents":0,"otherCents":6500},"componentRates":{"laborCents":0,"materialCents":0,"otherCents":6500},"costType":"Dump fees","id":"appliance-haul-disposal","name":"Appliance Haul-Away and Recycling","provenance":[{"class":"internal-researched","evidenceStatus":"baseline 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System","version":"e88dbfa9"},"componentExtendedCosts":{"laborCents":0,"materialCents":85000,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":85000,"otherCents":0},"costType":"Allowances","id":"water-heater-allowance-tank","name":"Tank Water Heater Allowance","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Water Heater System from system type tank = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":85000,"trade":"Plumbing","unit":"ea","unitPriceCents":85000},{"assembly":{"name":"Water Heater System","version":"e88dbfa9"},"componentExtendedCosts":{"laborCents":0,"materialCents":10500,"otherCents":0},"componentRates":{"laborCents":0,"materialCents":10500,"otherCents":0},"costType":"Materials","id":"water-heater-connection-kit-materials","name":"Water Heater Connection Kit","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Water Heater System from system type tank = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":10500,"trade":"Plumbing","unit":"ea","unitPriceCents":10500},{"assembly":{"name":"Water Heater System","version":"e88dbfa9"},"componentExtendedCosts":{"laborCents":56000,"materialCents":0,"otherCents":0},"componentRates":{"laborCents":56000,"materialCents":0,"otherCents":0},"costType":"Labor","id":"water-heater-install-tank","name":"Tank Water Heater Install","provenance":[{"class":"internal-researched","evidenceStatus":"baseline evidence","observationDate":"2026-10-06","reference":"Private source","visibility":"private"}],"quantity":1,"quantityContract":{"deductions":0,"derivation":"Water Heater System from system type tank = 1 ea.","net":1,"purchased":1,"rounding":"Quantity rounded to 0.01 by the published pricer.","waste":0},"totalCents":56000,"trade":"Plumbing","unit":"ea","unitPriceCents":56000}],"scenario":{"allowanceTreatment":"PROPOSED: the water heater and expansion tank are allowances at their baseline amounts; the selected unit sets the final cost.","assumptions":["The existing vent serves the new tank without changes.","The gas line is sized for the new tank.","The tank fits through the existing access."],"baselineConditions":"PROPOSED: basement location; existing gas line, venting and water lines reused; leaking tank still accessible.","dimensions":[{"label":"Tank size","unit":"gallons","value":50}],"exclusions":["Venting changes or chimney liner work.","Gas line upsizing.","A drain pan.","Water damage repair from the leak.","Permit fees."],"finishLevel":"50-gallon atmospheric-vent gas tank in the same location","geographicBasis":"Clamp researched baseline rates, reconciled across three AI systems against a stated mid-market scenario; no specific locality and no measured market median","geography":"No specific locality is selected, and no statistically measured market median is claimed","inclusions":["Water heater unit removal and disposal","New water heater unit installation with seismic strapping","Hot and cold supply connection with shutoff valves","Gas line connection and leak test (gas units)","Combustion air vent installation or modification (gas/propane tank units)","Dedicated 240V circuit install (heat pump units)","Condensate drain line routing (heat pump and tankless units)","Final inspection coordination and permit closure"],"kind":"Gas Water Heater Replacement","scope":["Drain, disconnect and haul away the old tank","Set a new 50-gallon atmospheric-vent gas water heater in the same spot","New gas flex connector and drip leg, vent connector and water connectors","New shutoff valves","Install an expansion tank"]},"schemaVersion":"1.0","tradeSubtotals":{"Appliances":6500,"Plumbing":234600},"version":"v1"}