Knock $4,000 off your utility bill

Invest $1,500 in insulation and maintenance and get over twice that in energy savings the first year.

6 of 6
BACKNEXT
Call for service
Cost: $100 to $200 per unit a year
Payback: $300 to $500 a year

Cleaning your furnace's oil burners or removing scale from gas units, changing filters and checking refrigerant levels in the air-conditioning system are not exactly do-it-yourself jobs. You'll need some help from the professionals.

For every year that you fail to schedule service for your furnace (gas or oil), you'll wind up using 5% more heating fuel because of all the gunky buildup, and you'll pay 10% to 30% extra for neglecting your central air conditioning.

More galleries

Last updated June 18 2009: 12:58 PM ET
Email | Print | Share  |  RSS
 
google my aol my msn my yahoo! netvibes
Paste this link into your favorite RSS desktop reader
See all CNNMoney.com RSS FEEDS (close)
More Galleries
What being middle class means to me For some Americans, middle class means feeling secure. For others, it's just the opposite. More
The 10 most valuable global brands Apple has the most valuable brand in the world, up 67% over the last year, according to a BrandZ ranking. More
A life's work: Photos by Mary Ellen Mark The subjects of Mary Ellen Mark's photography ranged from celebrities to world leaders to those at the fringe of society, including prostitutes and the homeless. More

Special Offer