Wal mart has a variety of energy saving heaters that you can purchase.
The Ionic Breeze is energy star rated.
True Refridgerators do have an energy star rating. This means they do in fact consume less electricity than the refridgerators that do not have an energy star rating.
The first hour rating of this water heater model is the amount of hot water it can provide in the first hour of use.
Projectors are not covered by the Energy Star standard rating but do have several features such as sleep and standby mode that allow them achieve high power efficiency when not in use.
Valco Infrared heater can be used as a space heater. The can save you lots of money on energy costs.
The CNet star rating for Office 2007 is five stars. User rate it as a four star. Unfortunately this program is not free and must be purchased to use.
an elecric heater uses the conversion of electrical energy into heat energy.
your heater to keep you warm
The question is better defined as "What the most energy efficient portable heater?" Because one would assume that you will want to be able to take the heater with you when or if you move.
A heater typically uses electrical energy to generate heat through resistive heating elements or gas energy in the case of gas heaters. The energy is then converted into thermal energy to warm the surrounding air.
Energy Star dishwashers use less electricity, although they generally use less water as well.
No, a breaker needs to be loaded less than 80 percent. As they reach their tripping point they get hot. The circuit rating, breaker and wiring is not designed for 21 amps. The next size would be a 25 to 30 amp breaker that has #10 wire feeding it.