firebox, floor joist, ductwork, flue, chimney, subfloor, drip pan, furnace, heater, water heater, unvented, immersion heater, airing cupboard, duct, ventilation, woodstove, soffits, downpipe, exhaust pipe, cockloft, stove, pipes, crawlspace, firebrick, radiant heat, attic, preheats, kerosene heater, sprinkler system, heat exchanger, hydronic, boiler, downspout, pipework, vents, radiant heating, radiator, hoistway, dehumidify, intumescent, transite, fireplace, convector, backdraft, baseboard, lightning arrester, insulation, humidistat, sump pump, exhaust manifold, jambs, stopcock, hasp, steam boiler, flashings, penstock, nonconductive, spalling, grouted, spalled, ignitable, caulked, exothermic reaction, smoke detector, depressurize, soakaway, backflow, guttering, weatherstrip, carbon monoxide, combustibles, cryostat, cooker, oxyacetylene, manway, chimney stack, joists, louvers, noncombustible, ignition coil, condenser, hose, carport, weatherstripping, breezeways, compressor, spark arrester, dishwashing machine, crossflow, subgrade, sheetrock, macerator, arrester, extension cord, corrosives, transformer, stovetop, eave, dampness, manhole cover, defroster, trusses

organ pipe, pipe, pipework

flue, labial pipe