Lou Manfredini: How often should you replace furnace filter? from John Williams

Lou Manfredini: How often should you replace furnace filter?

1 seconds Posted Sep 28, 2026 at 7:56 pm.

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The great Mr. Fix-It, Lou Manfredini, joins John Williams to tell us the projects we need to be working on this week. Listen to HouseSmarts Radio on WGN each Saturday morning at 6 am.

← See all 79 episodes of John Williams