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How Do I Power and Install an Espresso Machine in a Mobile Coffee Van?

by Tara
(Southampton, UK)

Espresso machine inside a mobile coffee van at a UK street pitch

Espresso machine inside a mobile coffee van at a UK street pitch

I am in the process of research for my mobile coffee van business. I will be selling "proper coffee" and real loose leaf teas. I have been researching coffee machines for going on 10 hours now and while concluding some things, I still have some questions for those of you who have commercial espresso machines in your units:

1. Do you run your machine off of electricity and gas, or just electric?

2. Do you have an on-board electricity supply or are you always rigged up? I want to be self-sufficient i.e. not have to rig up to a mains supply, but some other forums imply that running a coffee machine off of power units/solar panels will be impossible.

3. Do you have a large reservoir feeding your machine - if so does this come with the machine purchase or is this something that you had to source separately?

4. Did you get a coffee van conversion company to install it all, or a machine engineer? I was hoping to do everything myself but then have a qualified gas engineer (is that even what they're called!?) to quality check and provide my gas safety certificate if necessary i.e. if I choose to get a gas powered machine.

A lot of questions - but your advice would be greatly appreciated!!

Many thanks

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Jun 10, 2026
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by: MobCater

Ten hours of research already puts you ahead of most people who ask me this, Tara, and your instincts are pointing the right way. Let me take your questions in order.

On gas versus electric, most coffee van operators I know run a dual fuel setup, with the espresso machine boiler heated by LPG and a smaller electrical supply for the pump, grinder and milk fridge. The reason is simple: heating water is the killer. A commercial machine boiler draws around 3kW, sometimes more, and that sort of load flattens batteries in no time. Gas does the heavy lifting far more efficiently in a vehicle.

That answers your second question too. A fully electric, fully self sufficient setup running off power packs or solar sounds lovely, but the forums are right, it will not run a commercial espresso machine reliably. Your realistic options are an LPG heated machine with a leisure battery and inverter for the low draw items, or a properly sized quiet generator. If you go down the generator route, size it for your total equipment draw with plenty of headroom, because an undersized generator at a busy pitch means the machine goes down and the day's takings go with it.

On water, in a van you will normally feed the machine from an on board food grade tank with a pump and an inline filter, and that tank and plumbing is sourced separately as part of the van fit out rather than arriving in the box with the machine. Budget for it, and remember your EHO will want to see a potable water supply and a separate hand wash sink in any case.

And yes, they are called Gas Safe registered engineers, and that part of your plan is spot on. You can do plenty yourself, the benchwork, the layout, even the water plumbing if you are handy. The gas side is different: pipework, regulator and fittings must be done by a Gas Safe engineer with LPG and catering competence, and you will need that gas safety certificate for your insurance, your pitch owners and your EHO. One warning from my own experience: engineers qualified for mobile catering installations are surprisingly thin on the ground, I found it near impossible to get quotes when I started. Find your engineer before you buy the machine, not after. It is exactly why we built an LPG engineer directory into the MobCater app. A good conversion company sorts the whole package and certifies it, which is why many people happily pay the premium.

Hope that helps

David

Disclaimer: Gas installation and maintenance must be carried out by a Gas Safe registered engineer. Never attempt gas work yourself. Check gassaferegister.co.uk for qualified engineers in your area.

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