Four Kilowatt Heating???

EasyT
EasyT Forum Participant Posts: 16,194
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edited November 2016 in Caravans #1

I was idly looking through the Eldis Explore range and glanced at specifications. It says: 4kW Space-saving Whale heating - runs on gas or electric with quiet night-time setting - internally ducted heating throughout including bathrooms. Surely not
4KW on electric. Can't be many sites with that supply?

Comments

  • Navigateur
    Navigateur Club Member Posts: 3,880 ✭✭✭✭✭
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    edited November 2016 #2

    The Truma heater in my 'van is 3kw on maximum on electric and it is possible to also run the gas burner at the same time. I think it is also about 3kw but to damn hot when I tried it!

  • Surfer
    Surfer Club Member Posts: 1,303
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    edited November 2016 #3

    Surely whether it is 1kw or 4kw, the temperature it reaches stays the same.  The only difference is that the water heats up quicker.

  • EasyT
    EasyT Forum Participant Posts: 16,194
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    edited November 2016 #4

    When it says 4 Killowatt, runs on gas or electric Surfer that would be 17.4 amps. Never been aware of a supply greater than 16amp on site

  • Kennine
    Kennine Forum Participant Posts: 3,472
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    edited November 2016 #5

    Overloading the bollards has never bothered  the advocates of "heating the world" by running external heaters in the awning. .Surprised

      cheers. . . K

     

  • jeffcc
    jeffcc Forum Participant Posts: 430
    edited November 2016 #6

    Its actually 2.8kw on gas and 2kw on electric giving a combined output of 4.8Kw

    http://www.whalepumps.com/rv/siteFiles/resources/docs/resource-library/4kW_SH_flyer.pdf

  • jeffcc
    jeffcc Forum Participant Posts: 430
    edited November 2016 #7

    To put that in perspective the latest Alde systems will run 3Kw electric and 5Kw gas

  • Boff
    Boff Forum Participant Posts: 1,742
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    edited November 2016 #8

    It's worth saying although the capacity of the boiler is 8kW. Alde rate the convectors as 400W per metre for a single and 600W for a double banked convector  That means to make full use of the potential output  A caravan would have to be fitted with 20m
    of single or 13m of double convectors. Not sure such a van exists?

  • jeffcc
    jeffcc Forum Participant Posts: 430
    edited November 2016 #9

    However that does not affect the speed at which the water or heating fluid is heated just its rate of heat distribution.

  • Boff
    Boff Forum Participant Posts: 1,742
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    edited November 2016 #10

    However that does not affect the speed at which the water or heating fluid is heated just its rate of heat distribution.

    "Just its rate of heat distribution". Personally I think that is the single most important attribute of a heating system. 

  • jeffcc
    jeffcc Forum Participant Posts: 430
    edited November 2016 #11

    I Agree It probably would be if you were heating a huge space. However even at 3kw mine keeps the van at 21c at temps down to -8. But my original post was just to point out that a 4Kw heater is nothing out of the ordinary and that in fact the Alde has a
    larger Electric heating unit. and also that this whale "4Kw" heater is actually rated when both gas and electric are being used and that the electric is only2Kw. so no problem on hook ups which is what the OP's post was aboutSmile. Use left and right arrows to navigate.

  • Boff
    Boff Forum Participant Posts: 1,742
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    edited November 2016 #12

    My points however badly made were. 

    1 Not all Alde installations are created equal

    2 In the middle of winter when I go to my van on a Friday night and the temperature has been below freezing for the last week. I want know how quickly after arriving on site I can take my coat off. Because the van has warmed up. 

    3 A side issue with the last van with the Truma Ultraheat system on the rare occasions we are on ehu. We could wait for the 2kW element to warm the van or we could stick the 5kW gas heater on as well to get warm an awful lot quicker. Then maintain the temp
    with the electric. 

  • Boff
    Boff Forum Participant Posts: 1,742
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    edited November 2016 #13

    I should have added. That not all hot air heating systems are created equal either.  If you have long runs of uninsulated ducting outside of the van then it is little wonder if performance is effected. 

  • hitchglitch
    hitchglitch Forum Participant Posts: 3,007
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    edited November 2016 #14

    If you want a quick warm up then it is always recommended to run on combined gas and electric. Once you are up to temperature you can switch the gas off.

  • Wildwood
    Wildwood Club Member Posts: 3,585
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    edited November 2016 #15

    I cannot vouch for the Whale but our Truma system works fine. It is not clear from the spec what power the heater alone uses but with the water heater on it can draw 9 amps.

  • Boff
    Boff Forum Participant Posts: 1,742
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    edited November 2016 #16

    How noisy is the Truma system?  The Whale system has a reputation for being noisy but what about Truma. 

  • armourer
    armourer Forum Participant Posts: 218
    edited November 2016 #17

    my sprite has a combi boiler  4kw gas+2kw elec  so we can have 6kw heating full blast    or 4 on gas or 2 elec

    or 6kw for heating the hot water 

    warm as toast

  • young thomas
    young thomas Club Member Posts: 11,357 ✭✭✭✭✭
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    edited November 2016 #18

    my sprite has a combi boiler  4kw gas+2kw elec  so we can have 6kw heating full blast    or 4 on gas or 2 elec

    or 6kw for heating the hot water 

    warm as toast

    if its a Truma Combi 4E....then, no you dont.....

    when on mixed mode, you will get upto 1800 w from the electric side but the gas side will only provide upto 2kw, so a max of 3.8 kw.

    you will get upto 4kw on gas only.

    the combi 6e can provide 1.8 on the electric side and a further 4 kw from the gas side, giving a max of 5.8kw on mixed mode and 6kw when on gas only.

  • ABM
    ABM Forum Participant Posts: 14,578
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    edited November 2016 #19

    Not  sure  of  the  Claimed,  or  actual,  output  of  the  Truma  in  my  'van  but  I  do  know  that  last  February  on  the  Castleton   Club  site  in  Snow  &  Ice  &  wind,  I  had  to  turn  it  down  'cos  I  was  Boiling Don't cry
    !! 

    ( Them's  not  tears,  thems  sweat  !!  )

     

    Brian 

  • ABM
    ABM Forum Participant Posts: 14,578
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    edited November 2016 #20

    How noisy is the Truma system?  The Whale system has a reputation for being noisy but what about Truma. 

    Wel,  mine  is  quiet  enuff  to  let  me  fall  asleep  while  doing  a  difficult  rated  sudoku

    zzzzzzzzzzzzzzzz

    Brian