Truma LPG heater

Submitted: Saturday, Sep 18, 2010 at 20:48
ThreadID: 126897 Views:4285 Replies:1 FollowUps:1
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Hi, this was posted on the Caravaners Forum - anyone have this installed in their BT; any knowledge about them?

"After quite some deliberation and estimation of fuel usage, we have ordered a Truma LPG heater for our new van due in January.

The advantages as I see them are as follows (acknowledgement to the Trakmaster forum for some of the information below):

Tested and approved to Australian Standard 4556/2000
Australian Gas Association (AGA) compliance approval 7550
Low power of 1.1 amps @ 12volts when running, 0.01 amp on standby (diesel 3 amps on highest setting reducing to .7 amp on low, and I understand 8/9 amps on startup, including when thermostat cuts in OR OUT - the glo plug has to burn off unwanted fuel each time the unit cuts out or is switched off)
External intake and exhaust in one through the wall fitting
Separation of inside and outside air the same as the Airtronic Diesel units
No fuel quality problems - no waxing, need for additives, ageing issues
No issues with where to mount the diesel fuel tank - most vans already have 9-18kg of gas on board
No ticking noise from the pump to deal with
No hole through the floor
No underfloor pipes, silencer, pump etc
No plugs to keep the dust out on inlet and exhaust under the van (but a cap is needed on the side)
The LPG unit is cheaper than the Dometic Erberspacher diesel unit (not sure of the price of the Webasto)
Time taken for the warm air stream to reach full heat is shorter (Dometic say the heat is instantaneous compared to the diesel heater)

As far as I know, Roy Wyss is installing the LPG units now in some of his Sunland vans, but they (the LPG heaters not the Sunland vans) are still very new on the market so may not have significant market penetration yet."
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Reply By: Mobi Condo - Saturday, Sep 18, 2010 at 23:43

Saturday, Sep 18, 2010 at 23:43
We have been looking very closely at these units as well, thus any other experiences will be more than welcome.
Came up thus far with much the same "paper spec sheet engineering" results as you have written.
Have seen discussions esle where which all seem positive. Adelaide agencies seem a tad surprised at just how much interest is being generated by these units.
Cheers - Ian & Sally
AnswerID: 581189

Follow Up By: Luvntravln - Wednesday, Sep 22, 2010 at 11:44

Wednesday, Sep 22, 2010 at 11:44
Comments from Da Man:

"Our new diesel heaters thermostat type is so incredibly efficient, it is not wise to consider anything else. Diesel is cheap, non-explosive, and abundantly available. Propane is explosive if something goes wrong, and a pain to obtain, and you could go through a bottle in a week in a cold winter..

I think we will stick with this safe option. Swapping out propane bottles in the bush is in the too hard basket, and in really cold weather a bottle might not even last a week. You can calculate the BTUs of the Propane vrs diesel and come up with some figures, but I HATE LPG for the heavier than air accumulative explosion factor.

I found the fuel calcs on the propane heater: 1/3 kg per hour. That means you could go through a 9 kg bottle in 3-4 nights no worries. That alone, besides safety, puts the death nail on that one...
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FollowupID: 852869

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