# why is an electric heater 100 efficient

If you re using an centralPfurnace, a lot of heat is lost traveling through ductwork between the furnace and the air vents in your living spaces. That isn t the case with our heaters, which are installedPin the wall in individual rooms. There are no ducts so all the heat is directly sent into your living space. Heat the room you re in andPsave energy The other issue with efficiency comes with how you heat your home. With a centralized system, you re paying to heat the entire home or large parts of it, whether you re using all the rooms or not. With a room-by-room heating system, you can individually heat rooms when they re in use and keep them at a lower temperature when they re not in use. So while we can t really give you specific numbers on much it will cost to run our heaters in comparison to the alternatives, we re comfortable saying that our heaters arePvery cost effective, especially when you use them as your primary heat source or in combination with a central system to heat the room you re in.
The energy used is the multiplication of power and time. If I leave my 1 kW heater on for one hour it will consume 1 kWh of energy. The electricity company will bill me for that 1 kWh.

Here in Silicon Valley, our electricity is supplied by PG E, and for that 1 kWh, PG E will bill us about 14В. If I turn on the 1 kW heater all day, the energy used is 24 hours x 1 kW = 24 kWh. We would pay \$3. 36 for that. Reconsider the example where I turn on my 1 kW heater for 5 minutes and off for 15 minutes, and I repeat this for an hour. Then the total energy used in that hour will be 0. 25 kWh. If I repeat this all day, the total energy used in a day is 6 kWh. I have not changed the heater, the power is still 1 kW, the energy used is less because it is on for less time. If I turn on my 2 kW heater all day, it will consume 48 kWh, and that is what the electricity company will bill us for. If I turn that same heater on for 15 minutes and off for 15 minutes, it is on for half the time. If I repeat this throughout the day the energy used is: This is the same as if I had had the 1 kW heater on all day and our bill would again be \$3. 36. Remember that for electrical energy it is meaningful only when you know the time period in question. If I tell you that my heater uses 24 kWh, that tells you nothing unless I add that is the amount of energy used in a hour, a day, a week, or some other time period.

• Views: 288

why do we need financial and managerial accounting
why does my laptop keep shutting down on its own
why does sound travel fastest in solids
why does my business need a website
why do we hire you interview question