Category Archives: refill

Stove/Fuel Choice for Italy

In Italy, we hope to cut our costs down somewhat by cooking as many of our meals as possible. But, the availability of stove fuels is somewhat different that North America, meaning that choosing a stove is a little hard. White gas (camping fuel), and the standard EN417-threaded butane canisters so plentiful here are quite scant in most of Europe – Italy included. Across the pond, Campingaz’ dominance in the market means that its own proprietary canisters are ubiquitous throughout much of the continent, to the chagrin of many tourists, who won’t have much luck finding EN417 butane canisters for their stoves in all but the largest cities in Italy.*

*Update: We have completed our tour of Italy, and in fact did not have too much difficulty locating the EN417-threaded canisters.  We purchased our refill at an odd little “Liquigas” shop in Siena, a chain which appears to be unique to Italy. There are more of these shops, and so our advice would be to start the search there. The cylindrical, hairspray-type bayonet canister were no where to be found in the country whatsoever.

I, myself, am not a fan of the Campingaz canister system nor their stoves, which are relatively heavy and seem (to me) to be of inferior fit-and-finish to many MSR, Snow Peak, and Primus stoves. While MSR offers the Superfly stove which can fit both the EN417 and Campingaz canisters, it also happens to be fairly heavy and large – not something I’d want for travelling light. So, I broke down and ordered a stove that has consistently been praised for its light wight and compactness, performance, durability + quality of build, and simmering ability: the Snow Peak GigaPower SS Stove. But, you can’t have everything: the GigaPower runs only on the EN417 canisters.

Snow Peak GigaPower butane stove

In one of my earlier posts, I talked about cutting costs by using a butane can refill tool; you can top-off a used canister with one of the spray-paint shaped bayonet cans available in most hardware/grocery stores. In Italy, these cans are also supposedly common, and so I plan on finding one GigaPower canister in the camping stores of Firenze (Florence) where we fly in, and then continuing to refill that can as we travel on through the small hill-towns of Tuscany.

Another helpful tip for tourists: if you are willing to pay a small premium, many plumbing shops/hardware stores in Italian cities sell the EN417-threaded canisters for brazing torches, which can be used in a pinch.

Gear Review: Butane Canister Refill Tool

Update 16/10/17: Wow, 4 years later and this is still the most popular page on my site! The Camping In Taiwan store has changed some URLs, so I updated them accordingly.

Update 13/05/13: It has been noted by someone that the company’s policy of shipping their adaptors in simple sealed, unpadded envelopes can cause problems – the unpadded envelope may rupture, leading to package loss. I suggest voicing any concerns with shipping to the owner.

An $8 piece of equipment which I highly recommend to any canister stove or lantern user is this butane canister refill tool. I managed to find it from the Camping In Taiwan website/webstore, here (scroll down).*

The bayonet-to-threaded refill adapter
With butane, there are two standards: the wide and squat EN417 threaded style canisters used in camping applications, and the thin and tall bayonet-style butane canisters often used in home applications. This above tool allows anyone to refill their isobutane/butane blend EN417-threaded canisters with the bayonet type butane cartridges. The benefit of using these bayonet cans to source fuel is obvious: they are cheap, cheap, cheap! But, because they have a bayonet fuel mount, then this adapter is needed. The adapter converts the large nozzle on these butane cartridges into a smaller nozzle – just large enough to fit into an EN417 valve and refill your favourite isobutane cartridge.
If you are partial to using the small isobutane canisters (like me – I always use the 113g/4oz. cans), so that you aren’t carrying the heavy and larger 227 or 450g cans, then using this refilling adapter will save you even more. Lets do some math:
  • MSR Isobutane (113g): $4.90
  • Primus Isobutane (450g): $10.00
  • North 49-branded Bayonet Canister (227g) : $2.99
  • Generic Bayonet Canister (227g): $1 to $1.50ea (look for these in 4-packs @ your nearest Asian food market)
These work out to (g per $):
  • MSR: 23.1 g/$
  • Primus: 45.0 g/$
  • North 49: 75.9 g/$
  • Generic: 227.0 to 151.3 g/$

The substantial savings become obvious when comparing like that. Note also how much more you get per dollar when using the larger isobutane canisters compared to the smaller ones. Asian markets carry lots of the bayonet cans at dirt cheap prices, since curved woks won’t work on regular electric stove elements, and the butane home ranges are often used instead. But seeing as I don’t live near any Asian food markets, I recently have relied on Canadian Tire’s North 49-branded bayonet cans as fuel (and sadly, have been paying the mark-up on  price).

The break-even amount I have found is 2 full refills, using my MSR 113g and the North 49 refills. The adapter has already paid for itself a few times over.

Its just a small piece of machined aluminum and two rubber seals. Weight: 3g.
Here’s how you use it. You’ll need a kitchen scale, the adapter(duh), a threaded isobutane canister, a butane refill, access to a freezer and a marker.
1. Weight a full EN417 isobutane cartridge. If you don’t have a full can, you can often find the full weights online. I have recorded this weight on the can’s bottom, for future reference:
232g —> the mass of the butane gas (113g) + canister itself ( 119g)
2. After a few weeks, once your can has been mostly used up, weight it again:
My refill apparatus, with mostly empty MSR cartridge ready to be refilled. In my case, a fully empty MSR canister would weigh ~119g
3. Now, put the empty can into the freezer, and let it chill. This will help create a pressure difference, and drive the butane into the canister far more quickly.
4. Remove from freezer, and place the adapter into the valve hole.
5. Take the bayonet can and place it into the orifice in the adapter. Press down firmly. If you don’t it may leak a bit of butane gas (you’ll smell it). Hold it down for a few seconds.
The connector should look like this when ready to go to the next step.
6. Place the refilled can onto the scale, less the adapter. Aim for a similar weight to that of the full canister. Try not to go over. Under filling by any amount is fine, and overfilling by a few grams shouldn’t matter either.
Refilled MSR 113 Cartridge. In reality, the full weight was to be 232g – it is really easy to over shoot the target.

As in the above picture, I’ve managed to over fill. By adding these extra 11 grams, I have increase the total fuel by ~10%. Since this refilled can is just pure butane now, instead of the usual isobutane/propane mix, the cold-weather performance should be noticeably less exciting. Butane boils at 0C @ sea level, and so this technique will really only work for spring/summer/fall use. Isobutane boils at -12C, and Propane boils at -42C, and so these fuels should work much better in the cold.

However, this allows us to exploit the higher boiling point – we *can* over fill by some degree with impunity. This can occur without the canister bursting because pure butane won’t make as much vapour pressure at room temperature as isobutane/propane will. Slightly overfilling is a good way to cut down weight if you should need more fuel – more fuel for less space and per packaging weight. A way to do this with minimal risk is to let both cans reach room temp, then try at filling a little more. The pressures should equalize to a safe level, and you should still get a little extra fuel added. BUT if something does go wrong, I don’t take any responsibility.

* This is not an advertisement for Camping in Taiwan, nor have I had any compensation for this review.