Don Vandervort, Head Homeboy, has written more than 30 DIY home improvement books, been a segment host on HGTV, served as MSN.com's home improvement expert and written countless magazine articles.
If the furnace makes rattling noises when it runs, be sure the cover panels are screwed on tight. If they aren't, tighten them. Other noises may be coming from squealing belts or rattling ductwork.
