Ovens

Oven options include an electric, gas, or dual fuel oven with an integral cooktop.  The electric models are usually a little less expensive and installing them does not require a gas line connection. 

Models with a self-cleaning feature are usually a little more energy efficient because they are better insulated. Although they use intense heat during cleaning, they also require less energy to cook your food. If you clean your oven only two or three times a year, you will likely save energy by buying a self-cleaning unit instead of an equivalent regular oven. 

Another option, the convection feature, cooks by circulating hot air about the food and uses only one-third as much energy to operate as conventional ovens. They produce further savings through reduced cooking times because the food is more evenly exposed to heat.

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Cooktops

Two primary types of cooktops are ones integral to the kitchen range and ones that are independent units installed in a countertop and used in conjunction with built-in ovens. Cooktops can be gas or electric.

Some prefer gas cooktops saying it gives them better control over the cooking process. Others like the fact that when you turn it on or off it is immediate, unlike electric units there heat remains long after the energy is switched off. With gas, it is important to run the ventilation fan to remove the byproducts of combustion from the home along with the cooking vapors. 

When it comes to electric cooktops, there are several options to choose from. Some offer better cooking control, more efficient operation and a high-tech look to the kitchen. The following table lists the current options and some of their benefits:

Electric Cooktop Options
Technology Benefits Drawbacks
Exposed metal coils Least expensive

Difficult to clean

Solid disk element More attractive, easier to clean Longer warm ups, uses more energy because of higher wattage elements
Radiant elements Heat fast, flat ceramic surface easy to clean, flat surface provides extra counter space when not in use More expensive, requires flat bottom, smooth pots and pans for best results
Halogen elements Heat instantly, respond almost immediately to cooking control temperature changes Not very energy efficient, expensive
Induction elements Only heat where the cooking pot/pan is in contact with the surface, cools instantly, no heat to other areas of cooking surface, very energy-efficient Require specific types of pots/pans (magnetic), very expensive