Calor Gas Bottle Prices: 13kg Propane Refill Is £45.50

Calor gas bottle prices on Calor’s own price list, checked on 5 October 2026, put a 13kg propane refill at £45.50 and a 15kg butane refill at £56.50. Buying a first bottle costs more, because you also pay for a Cylinder Refill Agreement: £115.49 for a new 13kg propane bottle, for example. The two sizes most range cooker owners actually use, 19kg and 47kg propane, are not priced on Calor’s site at all. Calor sends you to your local stockist for those.

This page sets out every published Calor price, what the refill agreement is and what you get back, how to work out the real price of a 47kg from your stockist’s quote, and how long a bottle lasts a range cooker.

Calor gas bottle prices, October 2026

These are Calor’s suggested retail prices from its LPG prices page. Stockists can charge more or less.

The per-kg column is our own sum: the refill price divided by the weight of gas. It shows the pattern clearly. A 3.9kg bottle costs about twice as much per kilogram as a 13kg one. Patio Gas, which is propane in a different bottle, costs more per kilogram than a standard 13kg propane refill.

The surcharge on top

Calor’s price page currently carries a notice that a “temporary volatility surcharge” applies to all LPG bottle purchases, added on top of both the new bottle and refill prices and varying by bottle type. Calor does not publish the surcharge amounts. Ask your stockist for the total price at the counter, not the list price.

The Cylinder Refill Agreement: not a deposit

Calor owns every bottle. When you buy your first one, the “new bottle price” is the gas plus a Cylinder Refill Agreement, or CRA. You can see it in the numbers: a new 13kg propane bottle at £115.49 is the £45.50 refill plus a £69.99 agreement.

Calor’s help centre lists the agreement charges by bottle group:

• £49.99: small and medium butane (Cube, 4.5kg, 7kg, 12kg, 15kg), small propane (3.9kg, 6kg Lite, 6kg) and 5kg Patio Gas.
• £54.99: 13kg Patio Gas.
• £69.99: large propane, which covers 13kg, 19kg and 47kg as well as the forklift bottles.

Calor is explicit that the charge is not a deposit. Keep the paperwork: it is what lets you swap empties for full bottles in the same exchange group and claim a partial refund if you return a bottle. For bottles returned after two years, Calor says it may make a discretionary payment, for up to five cylinders a year. It is not guaranteed.

The practical point for a range cooker installation: you pay the £69.99 once per bottle. A two-bottle setup on an automatic changeover valve means two agreements up front, then only refills after that.

Working out what a 47kg bottle really costs

Because Calor does not list a 47kg price, the only figure that matters is your stockist’s quote. Turn it into a price per kilogram and per kWh, then you can compare it with the 13kg list price or with oil.

A 47kg propane bottle holds roughly 650 kWh of heat, using about 13.9 kWh per kg. Here is what three example quotes work out to:

Against the 13kg propane list refill at £3.50 per kg, about 25.2p per kWh, a 47kg bottle is the cheaper way to buy propane by a clear margin. That is why it suits a range cooker that is used every day. Our off-grid comparison of LPG and oil range cookers shows how bottled gas compares with a bulk tank and with kerosene.

Two cautions. Delivery may be charged separately, so ask whether the quote is delivered. And check it includes the volatility surcharge.

How long a 47kg bottle lasts a range cooker

The bottle empties at the rate your burners and oven turn gas into heat. A burner rated at 3kW on full flame for an hour uses 3 kWh, which is about 0.22kg of propane. Add up a normal day, then divide into the 650 kWh in a 47kg bottle:

These are worked examples, not promises. The LPG gas bottle calculator runs the same sum from your own burner ratings and cooking times. If you are still choosing a cooker, our LPG cooker guide explains conversion kits and which models ship ready for propane.

Which gas a range cooker needs

Range cookers fed from bottles outside the house run on propane. Butane stops vaporising properly in cold weather, which is why it is sold for indoor heaters and caravans, not for an outdoor manifold feeding a kitchen through the wall. A cooker must be set up for LPG by a Gas Safe registered engineer, who fits the right jets and regulator. Patio Gas is propane, but it uses a different valve and does not fit a standard propane regulator.

Frequently asked questions

How much is a Calor gas bottle refill? On Calor’s suggested prices, checked 5 October 2026, a 13kg propane refill is £45.50, a 6kg propane refill £32.00 and a 15kg butane refill £56.50. A temporary volatility surcharge is added on top and varies by bottle.

Why does Calor not show a price for the 47kg bottle? Calor tells customers to contact it or a local stockist for 19kg and 47kg propane. Prices for those sizes are set locally, so get a delivered quote and divide it by 47 to compare it per kilogram.

Is the Calor Cylinder Refill Agreement refundable? Partly. It is not a deposit, because Calor owns the bottle. Keep the agreement to claim a partial refund when you return a bottle. After two years, Calor says any payment is discretionary, for up to five cylinders a year.

Is a bigger gas bottle cheaper? Yes, per kilogram. A 3.9kg propane refill works out at £7.18 per kg against £3.50 for a 13kg refill, and a 47kg bottle is usually cheaper again per kilogram.

How long does a 47kg propane bottle last on a range cooker? It holds about 650 kWh. A kitchen using 3.5 kWh a day, with the hob daily and the oven most days, gets about six months. Heavy use on a large range can empty it in around 16 weeks.

Can I swap a Calor bottle for a Flogas one? No. The refill agreement only lets you exchange an empty for a full bottle in the same Calor exchange group. Another supplier’s bottles come with their own agreement.

Sources

• Calor, LPG prices, suggested retail bottle prices and surcharge notice, checked 5 October 2026.
• Calor help centre, Cylinder Refill Agreement costs and returns guidance.