Calor Butane

Calor Butane is better suited to indoor use, and fuelling appliances like portable gas heaters and single-burner cooking stoves.

For just £5 (inc vat @ 20%) we deliver to anywhere in our delivery area.

When the chill sets in, you want heating that’s simple, effective, and flexible. Calor Butane cylinders remain a firm favourite with households and businesses across the UK who value practicality at home. Their distinctive blue bottles come in several sizes, designed to slot easily into cabinet heaters and move about as needed—without the faff. Strict safety standards mean you can use them with confidence. Whether you’re warming the lounge, heating a conservatory, or firing up a barbecue in the garden, Calor Butane adapts smoothly to each job. Below, you’ll find advice on safe storage, choosing the right regulator, how to refill, and troubleshooting—useful tips whether you’re new to bottled gas or an old hand. With plenty of choice in the selection below, it’s even easier to pick the right cylinder for your home or trip.

  • 15kg Butane Gas

    15kg Butane Gas

    From: £64.00

    The 15kg Calor butane gas bottle is the larger butane cylinder, made for bigger portable heaters and regular indoor use. At around 58cm tall and 32cm across, it holds a generous amount of gas while still being practical to move and stand where you need it.

    Butane is best suited to indoor jobs, and this bottle is mostly paired with portable heaters running a 21mm clip-on butane regulator. It’s a good way to keep a lounge, workshop or office warm through the colder months, whether you’re off the mains gas network or just topping up heat where the central heating doesn’t reach.

    We sell it as a refill on a like-for-like exchange, so you’ll need an empty 15kg Calor cylinder to swap on delivery. No empty yet? Add a Calor cylinder deposit when you order. We deliver Calor butane across our defined Reading delivery area for a standard gas delivery charge, so check your postcode is covered first, or call us on 0118 9242888.

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  • 4.5kg Butane Gas

    4.5kg Butane Gas

    From: £40.00

    The Calor 4.5kg butane gas bottle is the small, light one, the bottle most people grab for caravanning, camping and simple cooking. At around 34cm high and 24cm across, it slips into a locker or storage box without taking over, and it still holds enough gas for weekends away or light, occasional use.

    Butane suits indoor use and appliances like portable gas heaters and single-burner stoves, which makes this cylinder a natural fit for touring caravans, campers and small holiday setups. It takes a screw-on butane regulator, so check the fitting your appliance needs and pair it accordingly. Butane does struggle once it’s close to freezing, so for cold outdoor use propane is the better choice.

    It’s sold as a refill on an exchange basis, so bring an empty 4.5kg Calor cylinder to swap, or add a cylinder deposit at checkout if you’re starting out. We’re an authorised Calor stockist and deliver butane across our defined Reading area for a small fixed fee, so check your postcode is covered first, or call the yard on 0118 9242888.

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  • 7kg Butane Gas

    7kg Butane Gas

    From: £42.00

    The 7kg Calor butane gas bottle is a good all-rounder for summer caravanning and portable indoor heaters. Standing about 50cm tall and 26cm across, it holds more than the smaller 4.5kg cylinder while staying easy to lift, store and connect.

    This size is widely used with portable gas heaters running a 21mm clip-on butane regulator, and with caravans that see regular spring and summer use. Butane suits indoor and milder-weather use, so it’s a sensible choice when you’re not chasing gas for cold outdoor work. For that, propane is the better option.

    It’s supplied as a refill on a like-for-like exchange, so you’ll need an empty 7kg Calor cylinder to swap, or you can add a Calor cylinder deposit if you’re starting out. We deliver Calor butane across our defined Reading area for a low fixed fee, so check your postcode is covered first, or call the yard on 0118 9242888.

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Useful information about Calor Butane

Calor Butane cylinders are sturdy, refillable gas bottles, widely available in several sizes for home or light commercial use. That bright blue colour makes them easy to spot and ensures you won’t mix them up with propane. Most people opt for the 15kg cylinder for room heaters, while a handier 4.5kg version suits camping and smaller appliances well.You can use these cylinders to power cabinet heaters, camping stoves, BBQs, patio heaters, and caravan or motorhome kit. Size really does matter here. Always check your appliance manual or ask a local gas supplier if you’re not sure which bottle to pick.

Using Calor Butane Indoors: Staying Safe

One reason why Calor Butane’s so popular is its suitability for indoor heaters, like cabinet models that are purpose-built for bottled gas. That said, safety should always come first. In the UK, you’re allowed to keep a maximum of 15kg of butane—or two bottles—indoors at one time. More than this risks your safety and isn’t permitted in residential properties.

Always store cylinders upright, out of direct sunlight and away from any kind of heat source—boilers, radiators, and flames are all a no-go. Never keep gas bottles in high-rise flats or anywhere fire regulations prohibit them. Place them somewhere secure and ventilated, so they’re protected from knocks or falls.

Why Choose Calor Butane for Room Heaters?

Butane burns cleanly, creating steady warmth without soot or smoke—ideal for room heaters and use inside. During colder spells, you’ll keep cosy without adding extra moisture or bothering with odd smells.

The flexibility is worth noting too. Calor Butane cylinders are made for easy fitting and moving, so you can shift a heater as needed or bring a small bottle on your next camping trip. They provide an affordable, targeted boost of warmth wherever you need it—no need for a costly hardwired setup.

Frequently asked questions

Is Calor butane better for indoor use?

Yes. Harringtons describe Calor butane as being better suited to indoor use, especially for fuelling portable gas heaters and single-burner cooking stoves. It’s a popular choice for rooms that need extra heat and for simple cooking appliances.

What’s the difference between 4.5kg, 7kg and 15kg Calor butane bottles?

The 4.5kg bottle is compact and lightweight, ideal for caravanning, camping and single-burner cooking appliances. The 7kg size offers more gas for summer caravanning and portable heaters that use a 21mm clip-on regulator. The 15kg bottle is mainly used with larger portable indoor heaters where you want longer run times between refills.

Do I need an empty cylinder to order a Calor butane refill?

You do. All three butane products are sold as refills, so you must be able to exchange an empty Calor cylinder of the same size on a like-for-like basis. If you can’t provide an empty, you’ll need to add a Calor cylinder deposit to your order before checkout.

Do Harringtons deliver Calor butane gas bottles to my address?

Harringtons deliver bottled gas, including Calor butane, across a wide delivery area that covers many Berkshire, Oxfordshire and Buckinghamshire postcodes, plus selected Greater London areas. All deliveries are limited to the listed postcode areas, so it’s worth checking your address before ordering.

How much does gas bottle delivery cost?

Gas cylinder deliveries, including Calor butane, incur a nominal delivery fee of £5.00 including VAT, with orders usually delivered within 2–4 days. Faster options such as next-day delivery are available on some orders at an additional charge, shown at checkout.

Who are Harringtons Reading?

Harringtons Reading LLP is a long-established, family-run bottled gas supplier based near Reading, specialising in Calor gas, butane, propane and patio cylinders, along with solid fuels and other products. They’ve been serving the local area since 1956 and are an authorised Calor stockist.