Honda EU22i LPG Dual Fuel Generator Review: Door Mount, Bottle Mount or BBQ Kit?
Last updated: October 2026
In 30 seconds:
- The LPG dual fuel Honda EU22i is a Honda petrol inverter generator with an LPG kit added, so it runs on propane or petrol.
- It gives 1,800W continuous and 2,200W peak at 230V. That suits lights, tills, card machines, laptops and low-draw kit, not heating elements.
- We sell three LPG versions: door mount kit from £1,419, bottle mount from £1,445 and BBQ door mount from £1,445.
- On propane it uses about 0.4kg an hour at 75% load. Use a 19kg cylinder or bigger, and consider 47kg in cold weather.
What do you buy when the pitch is quiet, the neighbours are close and your appliances already run on propane? For a lot of small traders the answer is a Honda EU22i with an LPG kit fitted.
The Honda EU22i is one of the best-known small suitcase inverter generators in the UK. The LPG dual fuel version keeps the same Honda engine and inverter, and adds a propane feed. This review covers what it runs, which of the three LPG kits to pick, and the mistakes that catch new owners out.
Honda EU22i LPG dual fuel: quick specs
- Output: 1,800W rated, 2,200W maximum
- Voltage and current: 230V, 50Hz, single phase, 7.8A rated
- DC output: 12V / 8A
- Engine: Honda GXR120, 121cc, 4-stroke OHV single cylinder, forced air cooled
- Start: recoil (pull cord), with Honda auto-decompression to make the pull easier
- Fuel: unleaded petrol or LPG propane
- Petrol tank: 3.6 litres, about 3 hours 30 minutes at rated output
- Propane use: 0.4kg per hour at 75% load (petrol: 0.93 litres per hour at 75%)
- Oil capacity: 0.4 litres (a 600ml bottle of Honda oil is supplied)
- Weight: 21.1kg, as given on our listings
- Warranty: Honda’s cover is 5 years for residential use and 1 year for commercial use
- Price: from £1,419 with the door mount LPG kit
What “LPG dual fuel” means on a Honda
Honda builds the EU22i as a petrol generator. The dual fuel version has an LPG conversion kit fitted, so you can run it on propane from a cylinder or on petrol from its own tank.
That is different from a dedicated LPG generator, which is built to burn propane only. If you want the full comparison, read our Greengear vs Honda, Champion and GearGB dual-fuel comparison.
Why choose dual fuel? You trade on the same propane as your griddle or coffee machine. If a cylinder runs dry mid-service, petrol is a fallback.
Why an inverter? The inverter gives clean, stable power for tills, card machines and laptops. Honda’s Ecothrottle also lets the engine run only as fast as the load needs, which saves fuel and keeps noise down.
Door mount, bottle mount or BBQ door mount: which kit?
All three use the same Honda EU22i. The difference is how the propane gets in.
| Version | How the gas connects | Price |
|---|---|---|
| Door mount LPG kit | Kit fitted to the generator, supplied with the LPG regulator and hose. Cylinder not included. | from £1,419 |
| Bottle mount LPG kit | Bottle mount type LPG kit | from £1,445 |
| BBQ door mount | Fed from a vehicle’s BBQ gas connection point (Bullfinch type), with a detachable door kit held by a thumbscrew | from £1,445 |
| Petrol only (no LPG kit) | Petrol tank only | from £1,208 |
For most food trailers and market stalls, the Honda EU22i with the door mount LPG kit is the simple choice. It is the cheapest LPG version and comes with the regulator and hose, so you add a cylinder and go.
If you prefer the bottle mount layout, the Honda EU22i bottle mount LPG version costs a little more and runs the same engine.
The BBQ door mount only makes sense if your van or motorhome already has a fixed BBQ gas point. Any work on a fixed gas system in a vehicle must be done by a Gas Safe registered engineer.
Spending over £1,000? Lease finance lets you buy the generator and spread the cost over time.
Who the Honda EU22i LPG suits
- Coffee carts and trailers where the coffee machine heats on propane and only needs a small electric supply
- Market stalls running lights, a till, a card machine and phone charging
- Pitches with close neighbours, where a big frame generator would be too loud
- Traders who move the generator by hand at the start and end of every day
- Anyone who wants propane as the main fuel but likes having petrol as a backup
A coffee example: the Fracino Contempo CON2ELPG lists its electrics at 350W when it heats on gas. That sits well inside the Honda’s 1,800W continuous output, with room left for a grinder and lights. Check the rating plate on your grinder first.
Who should look elsewhere
- Fryer, griddle or water boiler set-ups that heat on electricity. Heating elements soon go past 1,800W.
- Coffee machines running in full electric mode
- Vans that need electric start or auto-start
- Anyone running several appliances that cycle on together
Add up your loads before you buy. Our LPG generator sizing calculator and appliance load guide does the sums for you. For bigger loads, our best LPG generators for mobile catering buying guide covers the larger models.
What you need to run it on propane
- A propane cylinder of at least 19kg. The kit instructions say smaller cylinders can freeze on long runs and lose power.
- A 47kg cylinder in cold weather, which the same instructions say may be needed.
- Propane, never butane. Butane fails to vaporise below about 2°C, so it lets you down in a UK winter.
- Engine oil to the 0.4 litre capacity before the first start.
- A level spot outside with fresh air, with the exhaust pointing away from people, vents and the serving hatch.
How long does a cylinder last? At 0.4kg an hour, a 19kg cylinder works out at roughly 47 hours at 75% load. A 47kg cylinder works out at roughly 117 hours. These are our own sums, so treat them as approximate. Light loads use less. Our LPG cylinder run-time calculator helps you plan a full event.
Starting and stopping on LPG
The LPG kit instructions set out a short routine. Follow it every time.
- Make sure the unit is empty of petrol. Turn the petrol off and run it until it stops.
- Connect the regulator hose to the cylinder. Check the valve seat and hose union are clean first.
- Connect the regulator hose to the spigot on the generator.
- Press the fuel controller prime button for 1 to 2 seconds.
- Start the engine in the normal way. Do not use the choke on LPG.
- To stop, turn the LPG off at the cylinder.
Keep the generator isolated from the gas supply whenever it is not running. Never store the fuel controller with its button pressed. Never use PTFE tape or sealant on the fittings.
The biggest mistake: treating 2,200W as the working figure
The 2,200W figure is the maximum. The rated output is 1,800W, and that is the number to plan around.
New owners often add up their kit against 2,200W, then wonder why the generator labours or trips at busy times. Keep your running load well under 1,800W. If your list includes a kettle, urn, electric fryer or electric griddle, this is the wrong generator.
The second mistake is a small cylinder. A short run on a small bottle may be fine. A full day on one in cold weather can freeze it and starve the engine.
Honest verdict
The Honda EU22i LPG is a quiet, light, well-built generator for small electrical loads. It is a strong fit for coffee carts that heat on gas and for market stalls.
It is not a power plant for an electric kitchen. Buy it for what it does well, and size up if your list keeps growing.
Frequently asked questions
Can the Honda EU22i run on LPG?
Yes, once an LPG conversion kit is fitted. Our three LPG versions come with a kit already fitted, so they run on propane or petrol. The standard Honda EU22i from £1,208 is petrol only.
How much propane does the Honda EU22i LPG use?
About 0.4kg per hour at 75% load. On that figure, a 19kg cylinder lasts roughly 47 hours, which is our own approximate sum. Lighter loads use less propane.
Can the Honda EU22i run a coffee machine?
Yes, if the machine heats on gas. The Fracino CON2ELPG lists its electrics at 350W on gas, well under the 1,800W rated output. A coffee machine running in full electric mode needs a bigger generator.
What is the difference between the door mount and bottle mount versions?
Both run the same Honda EU22i. The door mount version has a door mount LPG kit and comes with the regulator and hose, from £1,419. The bottle mount version has a bottle mount type LPG kit, from £1,445.
What size gas cylinder should I use with the Honda EU22i LPG?
Use a propane cylinder of at least 19kg. The kit instructions warn that smaller cylinders can freeze on long runs. In cold weather they say a 47kg cylinder may be needed.
Can I use butane instead of propane in the Honda EU22i?
No, use propane only. Butane fails to vaporise below about 2°C, so it stops working on cold UK days. Propane keeps working through the winter.
Does the Honda EU22i LPG have electric start?
No, it has a recoil pull-cord start. Honda’s auto-decompression makes the pull easier. If you need a key or remote start, choose a larger electric-start generator.
What warranty comes with the Honda EU22i LPG?
Our listings give Honda’s cover as 5 years for residential use and 1 year for commercial use. Mobile catering counts as commercial use, so plan on 1 year.