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Ask This Old House Season 9 Episode 12

Plumbing and heating expert Richard Trethewey helps a pair of homeowners reduce their utility bills by installing a new forced-air furnace and air conditioning system. Then, general contractor Tom Silva helps a homeowner repair damage to her oak flooring that was caused by a leaky radiator.

Episode Title: Installing a forced-air furnace and air conditioning system; repairing damage to oak flooring

Air Date: 2010-12-23