Catalytic heater

Discussion in 'Motorhome Chat' started by Jaws, Sep 28, 2010.

  1. Jaws

    Jaws Funster Life Member

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    Anyone got or know where I can get at reasonable price a small catalytic heater, as fitted in a lot of lorry cabs and small race vans ?

    The Miller is fitted with warm air system only, no 'fire' at all

    Using the blown air system uses gas at a quite alarming rate and kills the batteries very quickly :Eeek:

    No room anywhere to fit a normal heater/fire but the small ( usually about a foot square ) cat heaters can be mounted in a variety of ways and places
     
  2. hilldweller

    hilldweller Funster Life Member

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    But what about the combustion products ?
     
  3. scotjimland

    scotjimland Funster Life Member

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  4. Johns_Cross_Motorhomes

    Johns_Cross_Motorhomes Trader - Motorhome & Accessory Sales

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  5. Road Runner

    Road Runner Read Only Funster

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  6. scotjimland

    scotjimland Funster Life Member

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    could you could refill the canisters with that new adaptor ? ... :Wink:
     
  7. atakd

    atakd Read Only Funster

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    You can.
    http://www.tcschandlery.co.uk/7830/TCS-Chandlery-Catalytic-Heater.html

    Just fit the appropriate reg for butane or propane.

    They do produce 2kg of water for every 1kg of gas burnt, consume O2 and produce CO2 so ventilation is a very good idea. No CO is produced though so there is no risk of death: CO2 build up or O2 defficiency will cause breathlessness, not drowsiness and most heaters are fitted with low O2 sensors.

    I asked the same thing on another forum but the above info put me off.
     
  8. scotjimland

    scotjimland Funster Life Member

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    John meant the small ones from Johns Cross that use a gas cartridge
     
  9. hilldweller

    hilldweller Funster Life Member

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    Do not underestimate CO2 I was told by an anaesthetist. Just as good a killer as CO.
     
  10. pappajohn

    pappajohn Funster Life Member

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    is that why its put in soft drinks and beer to make the 'fizz' ?
     
  11. scotjimland

    scotjimland Funster Life Member

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    Indeed, why it makes such a good fire suppressant ..

    but it's only dangerous to life when the concentration is over 80% , by comparison it only needs a very low level of CO to kill ..

    I would never suggest using one while asleep .. but used with a small amount of ventilation, (which all motorhomes and caravans have by law,) there is very little risk.
     
  12. pappajohn

    pappajohn Funster Life Member

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    i have a cat heater in the RV......load of crap !!!!!

    its around a foot square and runs on the 'house' gas tank.

    even in the dark the 'radiant' panel is very dull red for the bottom inch or so and no heat is produced from half way up.
     
  13. Johns_Cross_Motorhomes

    Johns_Cross_Motorhomes Trader - Motorhome & Accessory Sales

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    Cartridges evidently last 7 hours on full blast and the Coleman ones are not that dear at the moment, 4 canisters for £14-95p

    I suppose you could adapt the end of a hose to screw into one of these heaters
     
  14. scotjimland

    scotjimland Funster Life Member

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    maybe it's a 110v yank one john :Laughing:

    It's donkeys years since I used one but from memory they don't glow red , only on heating up when the pilot gas is lit.

    .. one of my mates has one in his RV by the door to help in winter when off EHU .. but it won't heat an RV on it's own.

    I think they are ideal when not on EHU as there is no battery drain.
     
  15. pappajohn

    pappajohn Funster Life Member

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    glows dull red at the very bottom and kicks out a fair bit of heat but nearer the top you would get a worse burn off a fag end.

    ok if you sit in front of it but sit to one side and it gives no benefit.

    maybe needs looking at ?
     
  16. Snowbird

    Snowbird Funster Life Member

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    I had a cat heater fitted in my old Rockwood by Daves RV Canock,it was perfect and had it fitted to the wooden wall by the door.I had this fitted to save on batteries when not on hookup and it used little or no gas unlike the US blown heaters.
    I have a vented caravan type heater in my curent Tiffin doing the same job perfectly,the US blown heater is used to give a 10 minute blast of heat first thing in the morning and then the normal gas heater takes over for the rest of the day,thats of course in cold weather.
    Both systems are miserly in there gas consumption and dont eat into your battery capacity.
     
  17. scotjimland

    scotjimland Funster Life Member

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    don't think there is much you can do John , .. perhaps give it a blow out , get rid of any built up dirt ?

    It's the same technology as a cat on a car, .. maybe yours is on it's last legs :Sad:
     
  18. pappajohn

    pappajohn Funster Life Member

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    i was thinking more of checking the "burner" jet for dirt incase it aint getting enough gas.


    makes little difference whether the control knob is on heat one or heat two.
     
  19. scotjimland

    scotjimland Funster Life Member

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    worth checking ... :thumb:

    the only problem I recall with mine was a broken thermocouple which holds the gas valve open.. maybe it's not fully open ?

    you'll soon have it sussed :Wink:
     
  20. hilldweller

    hilldweller Funster Life Member

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    They are sold as radiant heaters that do not heat the air, so if you're not in the beam, you're not heated. Need to sit on a revolving stool.

    Once the catalyst is poisoned by contaminants in the gas it is dead, ex-catalyst, no more.
     
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