How hot should air come out of a Truma?

Discussion in 'Motorhome Chat' started by Bushtrekker, Apr 28, 2012.

  1. Bushtrekker

    Bushtrekker Read Only Funster

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    I'm just checking out where everything is and how it works, before setting off in the camper. I've run the Truma up to temperature and warmish air is coming out , but not what I'd call room temperature, but it could just be me as my wife has our heating set high. Can somebody tell me what sort of heat should be coming out of it?
    Cheers, John
     
  2. MikeandCarolyn

    MikeandCarolyn Read Only Funster

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    I've found that ours takes about 20 mins to get to full efficiency-but after that,on full heat it's way too hot !!
    Sorry i don't have any figures.

    Mike
     
  3. Terry

    Terry Funster

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    Hi warm air will blow out,not hot.It does not take long to heat a van but it will never burn your hand so to speak.Another thing which may confuse you is once you turn it off after 30 sec/ min or so you will hear it turn on again,this is supposed to happen-it clears unused gases then turns off.I find with ours I turn it on full speed for tens mins then onto the lower quieter first speed.
    terry
     
  4. Bushtrekker

    Bushtrekker Read Only Funster

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    Looks like it needs a service.

    Thanks for the replies. The fire on the front of the boiler is warm to the touch, but not that hot and the air coming out is also just about warm.
    Cheers, John
     
  5. Terry

    Terry Funster

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    Should have asked this to begin with-What model Truma have you ?
    terry
     
  6. Bushtrekker

    Bushtrekker Read Only Funster

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    According to the handbook which came with the vehicle

    It's an SL3002
     
  7. Hollyberry

    Hollyberry Funster

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    I think it's a case of balancing the blower part of it with the heat number.
    If you have a book with it, mine gives recommended combinations of blower number with heater number. (Does that make sense?)

    Also, as the heat rises, if you are sitting down you really notice the heat if you stand up!

    I've found that I put it on no 7 (blower/fan not on) Leave that for 10-15 mins, then turn down to 2. Keeping us nice & warm at the moment.
     
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  8. Terry

    Terry Funster

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  9. Bushtrekker

    Bushtrekker Read Only Funster

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    Cheers Terry

    I've got the hard copy of the manual, but hadn't noticed the bit about setting the controls. I also noticed that it says the fan should be cleaned regularly and dust cleared from the bottom tray, so I'll clean it tomorrow and see if it makes a difference.
     
  10. tony_g

    tony_g Funster

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    Ours seems to come on and kick up in about three stages over a few minutes, getting progressively hotter. Rather depressing to have to be talking about heating when we're nearly in May! Staying over at sister-in-laws in Bromley and heading off to Germany, Austria, Slovenia and Croatia on Monday. Hope the drive south pays meteorological dividends.
    :BigGrin::BigGrin::BigGrin:
     
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  11. Bushtrekker

    Bushtrekker Read Only Funster

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    Gas pressure and airflow.

    Just a thought, but could either of these factors affect the running of a Truma? I'm parked against the house, so not much airflow and running on a 4.5 .kg Calor bottle which I'm trying to use up so I can swap for a bigger bottle. Would it be worth changing to propane and are there any advantages apart from the low temperature bonus.
     
  12. MHVirgins

    MHVirgins

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    Hope you enjoy your trip, it sounds fab! We've had great weather in Scotland where we are, dry all week, clear starry sky tonight, but not as warm as it should be for end of April. However, deluge on it's way up from south of the border:Sad:
    It's a long time since we travelled through Germany and Austria, about 37 years probably, have a great trip and don't forget the warm clothing:thumb:
    Margaret & Bill
     
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  13. scotjimland

    scotjimland Funster Life Member

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    In my experience Butane runs hotter and cleaner than Propane so I wouldn't see that helping ..

    bear in mind, the air temperature out will depend on the air temperature going in , so as the van heats up so too will the hot air coming out ..

    presumably you have checked the exhaust gas flue.. not blocked or partially covered ?
     
  14. Terry

    Terry Funster

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    Propane burns hotter than Butane :BigGrin::Wink:
    terry
     
  15. scotjimland

    scotjimland Funster Life Member

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    correct.. 10c hotter ..
    Flame temp. of both when burning with air,

    Butane 1,970 c

    Propane 1,980 c

    Propane Butane Mix 1,970 c

    but I said in my experience, :BigGrin:

    as I understand it, an appliance designed to run on Butane will not be as hot when run on Propane, unless re jetted for propane... :Wink:
     
  16. Terry

    Terry Funster

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    That's OK Jim :thumb::Wink: Not used Butane bottles for yrs I cannot use the refill adapter on them :Wink:
    terry
     
  17. scotjimland

    scotjimland Funster Life Member

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    you mean you haven't figured it out yet :Laughing: :Wink:
     
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  18. Terry

    Terry Funster

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    NEVER tried to :Wink:BUT IF I HAD TO I AM CERTAIN THERE WOULD BE A WAY :BigGrin:
    terry
     
  19. Bushtrekker

    Bushtrekker Read Only Funster

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    Vents

    I can see a vent on the roof and a pipe leading from the area of the boiler to it, but there is also one on the side with the Truma logo on it. At the moment it's blowing a gale here, so I don't think it's lack of ventilation that's the problem:BigGrin:
     
  20. aba

    aba

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    if memory serves me correctly the blown air bit of these is pulled from the rear of the fire.
    if you just have the fire on you will notice more heat from that until you switch on the fan then the heat from the front will reduce as the fan sucks it from the fire.

    so if you are only on a low number you need a low fan speed or it will cool it down
     
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