Hymer S820/740 heating (1 Viewer)

oldieish

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Feb 13, 2012
105
44
West Sussex
Funster No
19,800
MH
N+B Flair 7100i
Exp
Since 2012
Two questions:

a) can the underfloor heating be on whilst driving (presumably on electric, not gas)

b) does the blown air heater boiler require water in it when being used solely as a space heater
 
Dec 17, 2016
970
990
Malvern
Funster No
46,488
MH
Hymer B525 2006 A cl
Exp
2012
a) yes - if you have an automatic crash shut off valve on the gas system in the van it can be used on gas. I doubt it you can use it on electric as it will take 800w or 1600w. This generally requires hook up. This is assuming you have a Truma system If you have Alde the someone else may help.
b) the Truma. apparently doesn't require a full hot water boiler for the blown air to work. (having blown air suggests the system is Truma not Alde by the way)
 
Jun 30, 2011
7,267
20,241
Barnard Castle, UK
Funster No
17,128
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Concorde Concerto
Exp
Since 2007
You mean Truma Aquatherm wet system, we didn't use it much it's not as effective as an Alde and lots of reports of it being complicated and difficult to repair.
A. No
B.No
Great built vans those though.
 
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oldieish

Free Member
Feb 13, 2012
105
44
West Sussex
Funster No
19,800
MH
N+B Flair 7100i
Exp
Since 2012
Could it be run from an inverter? Two leisure batteries recharging from solar and engine whilst driving.
 
Jun 30, 2011
7,267
20,241
Barnard Castle, UK
Funster No
17,128
MH
Concorde Concerto
Exp
Since 2007
Could it be run from an inverter? Two leisure batteries recharging from solar and engine whilst driving.


Possibly a big inverter, not sure why you would want to though, we never felt the need. Just stick the Truma blown air on when you arrive it soon warms up, you need a few hours for the Truma Aquatherm to get warm.
Ours often tripped the EHU the wet Aquatherm system as I say we didn't use it much at all.
Which one do you have S820 or 740?

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oldieish

Free Member
Feb 13, 2012
105
44
West Sussex
Funster No
19,800
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N+B Flair 7100i
Exp
Since 2012
Seen half-a-dozen this year, mixture of 830s and 740s. Some good at a realistic price, sell quickly; some less good. Off to see another this weekend. Impressive vans. I would want to take full,advantage of their special features. Truma blown-air is a universal heater. Other makes (Carthago, N&B, Burstner, Rapido) use the Alde system. Unsure which way to go. I've a a B644G at present, so it'll be a sophisticated upgrade.
 
Jun 30, 2011
7,267
20,241
Barnard Castle, UK
Funster No
17,128
MH
Concorde Concerto
Exp
Since 2007
Seen half-a-dozen this year, mixture of 830s and 740s. Some good at a realistic price, sell quickly; some less good. Off to see another this weekend. Impressive vans. I would want to take full,advantage of their special features. Truma blown-air is a universal heater. Other makes (Carthago, N&B, Burstner, Rapido) use the Alde system. Unsure which way to go. I've a a B644G at present, so it'll be a sophisticated upgrade.


Just remember, the 6 tonne version is the one you want as not enough payload on the 416.

Also the Mercedes 2.7 cdi 156bhp is not powerful enough on anything but downhill to power it. Full auto is desirable, they didn't do the Sprintshift on the 6 tonne so all autos will be full torque converter auto.
 
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oldieish

Free Member
Feb 13, 2012
105
44
West Sussex
Funster No
19,800
MH
N+B Flair 7100i
Exp
Since 2012
This weekend's is a 740/616 with a manual box. Also interested in an early 2000s N&B Flair.
 
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oldieish

Free Member
Feb 13, 2012
105
44
West Sussex
Funster No
19,800
MH
N+B Flair 7100i
Exp
Since 2012
Iveco manual. I would prefer an auto, however they seem rather rare. What van have you?

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oldieish

Free Member
Feb 13, 2012
105
44
West Sussex
Funster No
19,800
MH
N+B Flair 7100i
Exp
Since 2012
Friends have a Concorde Concerto, nigh on 8 metres. Excellent van. I'd happily have a Concorde, although a little shorter would be fine. Apropos the Mercedes 2.7, can they be remapped to give better torque/power?
 
Jun 30, 2011
7,267
20,241
Barnard Castle, UK
Funster No
17,128
MH
Concorde Concerto
Exp
Since 2007
Friends have a Concorde Concerto, nigh on 8 metres. Excellent van. I'd happily have a Concorde, although a little shorter would be fine. Apropos the Mercedes 2.7, can they be remapped to give better torque/power?[/QUOTE


Ours is a Concerto but smaller model, yes the Merc can be remapped.
 
Jun 10, 2010
8,597
20,414
Shrewsbury (sometimes)
Funster No
12,013
MH
N&B Clou Liner MAN
Exp
2006
Could it be run from an inverter? Two leisure batteries recharging from solar and engine whilst driving.

If you want this feature, you need something fitted with alde with a heat exchanger. We have it on our arto, brilliant in winter. Flairs and most Concorde should have it.

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oldieish

Free Member
Feb 13, 2012
105
44
West Sussex
Funster No
19,800
MH
N+B Flair 7100i
Exp
Since 2012
I have the impression that while the Hymer Truma Aquatherm is good most contributors feel the Alde system is better.
 

Vic. Parsons.

Free Member
Mar 2, 2015
415
1,970
Wales
Funster No
35,297
MH
Hymermobil S740
Exp
since 2014
I have the impression that while the Hymer Truma Aquatherm is good most contributors feel the Alde system is better.

I can't speak for the Alde system but we have had no problems with our Aquatherm in our S740 (on a 616 ?), it takes between 30 to 45 minutes for the room to start heating but barefoot is possible after 25 minutes.
It wasn't that efficient when we first bought the van because the previous owner - owners never renewed the 50/50 mix of glycol/distilled water. After I replaced it, it worked a charm.
 

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