{"version":"1.0.0","scope":"coppersmith","rule_type":"fuels","rules":[{"id":"fuel-gas","code":"GAS","name":"Natural Gas","aliases":["natural gas","gas","ng","natural","gas only","natural gas with wind guard","natural gas with electronic ignition","gas with wind guard","gas with electronic ignition","natural gas single open flame"],"notes":"Natural gas (NG) — requires gas line and professional installation."},{"id":"fuel-ele","code":"ELE","name":"Electric","aliases":["electric","electrical","electric only","standard electric","electric bulb","incandescent","halogen","electric flame","standard electric cluster","weiyan electric flame","led","led electric","led filament","led bulb","tri-fire led","tri-fire led electric flame","led flame","led filament electric","led light"],"notes":"Standard 120V electric wiring; socket type governed by /rules/sockets.json."},{"id":"fuel-lpg","code":"LPG","name":"Liquid Propane Gas","aliases":["propane","prop","lp","lpg","liquid propane","propane with wind guard","propane with electronic ignition","lp with wind guard","lp with electronic ignition","propane single open flame","liquid propane gas"],"notes":"Liquid propane (LP) — requires LP supply; distinct orifice/regulator from NG."}]}