Bought our 1st van-advice required

Submitted: Sunday, Apr 26, 2020 at 12:17
ThreadID: 139946 Views:7449 Replies:5 FollowUps:5
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Hello all. We have just bought a van , fulfilling a long time dream. 2006 Jayco Expanda. What I’m hoping is that someone could advise me on what type/size inverter I could use. As we would like to free camp occasionally, we would like to use the microwave and aircon.
Really pumped, now to get the chance to use it.
Cheers Chris
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Reply By: Gerard S - Sunday, Apr 26, 2020 at 12:31

Sunday, Apr 26, 2020 at 12:31
Congratulations. Firstly you won't be able to run your aircon via your inverter.
Inverter size? Look at your electrical devices, My toaster is 700w. My microwave is 1200w, her hairdryer is 1600w. We don't use an electric jug as we use our gas kettle. Finally miscellaneous battery charging.
In our case, allowing for the heavier start up currents etc we use a pure sine wave 2000w inverter. So look at your device labels and go maybe 25% higher to cover start up loads.


AnswerID: 631229

Follow Up By: Keir & Marg - Sunday, Apr 26, 2020 at 13:12

Sunday, Apr 26, 2020 at 13:12
Hi Chris. Expandas are lovely vans. Do remember that if you are using a 1200W microwave via an inverter, then you are probably pulling about 125 amps out of your battery. So, if you use the microwave for 10 minutes, you've consumed 21Ah from your battery (125x10/60). If your van has the usual 105Ah battery installed which is initially fully charged, you only have about 50Ah which is usable before the battery is damaged. So, 10 minutes of microwave uses nearly 50% of the usable energy in the battery. If you are free camping, you are also consuming power for lights at night plus piezo-ignition for the gas stove, and you probably have the stereo running too. Which means, unless you are very careful, you will damage the battery (at the very least) or run it so flat it is stuffed!! Small inverters are fine to run low-powered stuff but the moment you talk about using microwaves, kettles or hairdryers, you are going to need big battery storage and lots of solar panels in order to free-camp.
If you are only going to free-camp occasionally, my suggestion would be to avoid using any 240v devices, and make sure you have LED lights throughout the van instead of fluorescent or incandescent lights.
Enjoy your new van.
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Follow Up By: RMD - Monday, Apr 27, 2020 at 10:18

Monday, Apr 27, 2020 at 10:18
Keir & Marg
A Piezo ignition is a crystal impact energy release to create a highvoltage and is not connected to anything apart from it's spark gap. Uses NO power at all, so not an issue with a van battery usage. Humans provide the energy to make it pulse.
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Follow Up By: Keir & Marg - Monday, Apr 27, 2020 at 16:43

Monday, Apr 27, 2020 at 16:43
Hi RMD, the ignition on my Weber BBQ requires a battery otherwise it doesn't work. Similarly, the gas stove in my Jayco requires a 12V supply connected, otherwise the stove won't light. So perhaps they don't have piezo ignition but a capacitor discharge system instead? Whatever, they still use power from the battery to work, even though it might only be a small amount of power.
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Follow Up By: RMD - Monday, Apr 27, 2020 at 19:20

Monday, Apr 27, 2020 at 19:20
If it needs a battery or power supply then it cannot be Piezo type.
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Reply By: Mick O - Sunday, Apr 26, 2020 at 12:41

Sunday, Apr 26, 2020 at 12:41
Congratulations Chris. To help get your head around DC power, there is a very informative blog that helps unravel the mysteries.

Electricity For Camping

All the best

Mick
''We knew from the experience of well-known travelers that the
trip would doubtless be attended with much hardship.''
Richard Maurice - 1903

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AnswerID: 631230

Reply By: nick g1 - Sunday, Apr 26, 2020 at 13:05

Sunday, Apr 26, 2020 at 13:05
If you want to free camp forget about microwave and all 240v appliances. Its just not worth the hassel and expence to set it all up. Use gas and 12v. And have a good solar setup. If you want inverters and 240 you have to carry 2 sets of appliances. One lot for the 240v and the other for gas. Life is so much simpler with just the one set. Wife has to leave hairdryer behind!
Air con will never be able to be run on any type of inverter. So the solution is either go to a C P to use it or run it off a generator.
This is what l have gleened from years of camping and caravaning.
Welcome to the adventure of travelling.
AnswerID: 631232

Reply By: Gerard S - Sunday, Apr 26, 2020 at 13:19

Sunday, Apr 26, 2020 at 13:19
Maybe a generator is more suited to your needs. However their use raises weight,etiquette and noise issues.
AnswerID: 631233

Follow Up By: Aussie1 - Sunday, Apr 26, 2020 at 13:42

Sunday, Apr 26, 2020 at 13:42
We have solar and a generator to use when we require 240v power at those times we are free camping. Usually if insufficient sunlight or air conditioner is needed. And the Brides hair dryer of course!Depending on your capacity for storage of course. We have plenty of space to carry the generator, Honda 2kva and have not found it heavy at all. But I guess it depends on your personal physical well being. Very rare I need to remove from the place it is stored as I simply run from that position as required. Been using as required for 14 years without any issues. I will admit there are those that are "paranoid" about generators, but remember it's your decision. Enjoy your Expander, looks great.
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FollowupID: 907187

Reply By: Darian - Sunday, Apr 26, 2020 at 16:15

Sunday, Apr 26, 2020 at 16:15
Looks a nice van Chris...some great adventures ahead I‘m sure. As others have mentioned, when free camping it’s not the conversion to 240v that is your main issue...it’s the source of power. Read up on van electrics, note the usage of your appliances, have options for supply (solar and genny), max your battery installation, and be quite frugal with consumption. With all that in place, it’ll be time to fold back the recliner and have a cold one :-) !
AnswerID: 631238

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