most efficient heater

Discussion in 'Off-Topic' started by Mussharraf Hossen Shoikot, Dec 20, 2017.

  1. Mussharraf Hossen Shoikot

    Thread Starter New Member

    Jul 28, 2017
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    electric heater with the highest efficiency in percentage. which is it, tell. delete post if violates rule and warn me.
     
  2. Reloadron

    Distinguished Member

    Jan 15, 2015
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    There are dozens of types and designs for electric heating for hundreds of applications. There is no most efficient as efficiency depends on application and oter factors.

    Ron
     
  3. Mussharraf Hossen Shoikot

    Thread Starter New Member

    Jul 28, 2017
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    room heating. highest efficiency based on percentage.
     
  4. Reloadron

    Distinguished Member

    Jan 15, 2015
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    OK then Electric resistance heating is 100% energy efficient in the sense that all the incoming electric energy is converted to heat. However, most electricity is produced from coal, gas, or oil generators that convert only about 30% of the fuel's energy into electricity. Since all of the electrical energy is converted into heat an electric home heater is 100% energy efficient as no energy is lost in the conversion process. Now the cost of making the electricity is another story.

    Electric Resistance Heating

    Ron
     
  5. crutschow

    Expert

    Mar 14, 2008
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    Think about it.
    Where would the energy go in an electric heater if 100% of the energy wasn't converted to heat?
     
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  6. Reloadron

    Distinguished Member

    Jan 15, 2015
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    Black hole? Alien abduction? There are possibilities beyond the scope of mortal men. :)

    Ron
     
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  7. kubeek

    Expert

    Sep 20, 2005
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    Some electric heaters make noise and light, but that is ultimately also converted to heat.
     
  8. AlbertHall

    AAC Fanatic!

    Jun 4, 2014
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    Yes, even if it is a fan heater, and some of the electrical energy is used to drive the fan, but all that 'lost' energy will also end up as heat in the room.

    It matters not whether the element is the 'latest high efficiency quartz' or a very old bare resistance wire, the efficiency is still 100%.
     
  9. neonstrobe

    Well-Known Member

    May 15, 2009
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    Light.
     
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  10. AlbertHall

    AAC Fanatic!

    Jun 4, 2014
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    What about light?
    If the heater produces light then that will also end up as heat in the room as long as you keep the curtains closed ;)
     
  11. tcmtech

    Distinguished Member

    Nov 4, 2013
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    Use electricity to run a heat pump to transfer heat from one area that doesn't need it to the place that does need it. You can get 300 - 400+% energy efficiency that way on energy input to thermal output.
     
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  12. WBahn

    Moderator

    Mar 31, 2012
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    What about an electric heat pump?

    BTW: This sounds a lot like a homework question. Is it?
     
  13. ian field

    AAC Fanatic!

    Oct 27, 2012
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    There were halogen space heaters enclosed by deep red filter glass that were hailed as the latest new whoopee doo.

    Not seen any for a while - maybe they turned out not as good as claimed.
     
  14. AlbertHall

    AAC Fanatic!

    Jun 4, 2014
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    They would still be 100% efficient.
     
  15. DickCappels

    Moderator

    Aug 21, 2008
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    Watts is watts no matter how you dissipate them.

    I have two 1 kW electric clothes irons and a small muffin fan to keep my office warm the two or three weeks a year that it is needed. A lot easier to store than a regular space heater.
     
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  16. ElectricSpidey

    Active Member

    Dec 2, 2017
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    While all electric heaters are 100% “electrically” efficient, even what is wasted in the power cord is converted to heat, a few things should be considered.

    1. Convection heat (forced air) is best at quickly heating air.
    2. Radiant/ reservoir (oil filled) is best at heating air and objects over longer periods.
    3. Pure radiant (quartz and such) is best at heating objects.
     
  17. Externet

    AAC Fanatic!

    Nov 29, 2005
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    The newest super-high technology fancy and expensive electric heaters in the market produce exactly the same heat as a falling apart rusty heater from the 1920's per Watt inputted.
    The difference is only the lifetime duration of the newest, which cannot compete.
     
  18. BobTPH

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    Jun 5, 2013
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  19. joeyd999

    AAC Fanatic!

    Jun 6, 2011
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    In addition to a heat pump, a Peltier device can also operate > 100%.
     
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  20. tcmtech

    Distinguished Member

    Nov 4, 2013
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    Yep. I've made it a minor mission to rescue old heaters from scrap yards and auctions then rebuild them and give them to people who need decent long lasting heaters that will stand the test of time.

    Personally I like the old all metal 'Milkhouse' heaters from before the 1970's being most of them went up to 1800 - 2000 watts on high rather than the now 1500 watt limit.

    Typically I rebuild them with updated 4.5" box fans I get out of salvaged industrial stuff that don't rattle an they move more air too. The rest is basic high temp paint jobs, fixed thermostats and better and longer 14 ga power cords over the all to common stock 16 ga (yea, 16 ga for 1500 - 2000 watts. :eek:) types they came with. :cool:

    After that, I like the old quartz element radiant heat units. Just as simple rugged and reliable. ;)
     
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