Date: Mon, 21 Jul 2014 19:39:43 -0700
Reply-To: Alistair Bell <albell@SHAW.CA>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Alistair Bell <albell@SHAW.CA>
Subject: Re: Truma heater, like propex, for cheap but...
In-Reply-To: <53CDCE55.1000808@gmail.com>
Content-Type: text/plain; charset=us-ascii
Just stick in a 12v to 24 v converter.
Alistair
> On Jul 21, 2014, at 7:37 PM, Rocket J Squirrel <camping.elliott@gmail.com> wrote:
>
> There are plenty mornings while camping that I wake up in my Westy and see the thermometer in the teens (F), but I've always been able to warm up with a combination of hot tea, a nice sweater, and my Mr. Heater Buddy.
>
> I'm sure that having a nice furnace to blow hot air into the cabin would be swell, and the price of this unit is attractive.
>
> But the 24V thing is a dealbreaker for me. I have two 6-volt golf cart batteries under the bench seat, giving me something like 100 amp-hours at 12 volts. I am not going to put in another 12V battery (or two more 6V batteries) to bump me up to 24V.
>
> Plus there's the charging. The alternator in the van is set for 12V batteries. As is my solar rig, and my at-home charger.
>
> Charging a 24-volt setup can be done, but it would require some switching to put the supplemental (furnace) battery in parallel with the other batteries so a 12V charging source could do it.
>
> So -- put a couple 12V batteries in series (stacked) to operate the furnace; then put them in parallel (side by side) for charging.
>
> Unless the blower motor in the furnace can be swapped out for a 12V motor, and the circuit board can be made to be happy with the lower voltage, and control units can be found that work at 12V.
>
> --
> Jack "Rocket j Squirrel" Elliott
> 1984 Westfalia, auto trans,
> Bend, Ore.
>
>> On 07/21/2014 07:08 PM, Alistair Bell wrote:
>> Man that's a good deal. I'd jump on it of they shipped to Canada. I kick myself for not grabbing an older truma from a vanagon in the scrapyard some years ago.
>>
>> Alistair
>>
>>
>>
>>> On Jul 21, 2014, at 3:46 PM, Edward Maglott <emaglott3@GMAIL.COM> wrote:
>>>
>>> Hey I picked up one of
>>> these:
>>> http://www.ebay.com/itm/Truma-HEIZG-E24-24V-30-OBT-Propane-Heater-Kit-Bus-Boat-RV-/251564290213?pt=Boat_Parts_Accessories_Gear&hash=item3a926670a5&vxp=mtr
>>>
>>> or: http://goo.gl/BXLVQ4
>>>
>>> I offered $50 and it was accepted immediately. There are 2 left as of now.
>>>
>>> It does appear to be brand new stock in it's original box with
>>> multilingual original manual. The biggest but is that it is 24V. So
>>> you will need to do some electrical contortions to power the device
>>> if you want to put it in your Vanagon. It states electric draw of
>>> .4A on low and .7A on high. Also, there is no control device. The
>>> manual shows 2 different basic controls and mentions a bunch of
>>> others that can operate it. The circuit board has empty connectors
>>> that they plug into. I need to find or figure out the pin outs for
>>> these before I can test it. It seems to be capable of low and high
>>> heat output and fan only. There is no exhaust pipe included. So if
>>> any of you are up to a challenge this might be a good opportunity.
>>> Edward
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