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wyvern



Member Since: 13 Dec 2009
Location: Cornwall
Posts: 2108
United Kingdom 2012 Defender 110 Puma 2.2 XS CSW Firenze Red
run 24 volt item from 12 volt system ...
Hi all,
Ive been offered a 24 volt Eberspacher cab heater for my wagon at a good price, but only have a 12 volt system …
So can I step up my system to give me 24 volts from a 12 volt system?
If so how?
Is it going to be easy or will it be too expensive to be worth it?

Hoping for a warm wagon at night when camping!! Poppy - TDCI (Puma) 110XS 2.2 - Camper conversion - see the build here - https://www.defender2.net/forum/topic56530.html
Elgar -TDCI(Puma) 110XS Dormobile - now sold
Devon & Cornwall 4x4 Response - DC126
Post #47553 6th Dec 2010 9:53am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8030
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
not easily you can't. fit a 2nd battery and run 24v straight for the heater but you will need a 2nd alt to charge the 2nd battery i would of thought to run a heater.

or two batteries in parallel with a 24v alt, ditch the 12v one then take heater feed from the 24V point and vehicle feed from the battery join ie 12v. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #47555 6th Dec 2010 10:08am
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586
Italy 
Use a transformer (switching) 12V to 24V...............
http://www.aaroncake.net/circuits/12VDC_To...ircuit.asp





or


http://www.webalice.it/crapellavittorio/electronic/da12a24v.htm



or



http://www.webalice.it/crapellavittorio/electronic/switc12v.htm Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License
Post #47590 6th Dec 2010 3:09pm
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8581
United Kingdom 
It is possible to get a 12 v/24v converter. Just google it

You would have to check the current draw on your potential heater.

Am guessing the higher the current draw the more expensive the converter will become

Will it be worth it? Hmm that is your call


HTH

Brendan
Post #47600 6th Dec 2010 5:10pm
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