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Dual Fuel

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Dual fuel tariffs

Signing up for a dual fuel energy tariff means you get both your gas and electricity from the same energy supplier.

Save up to £210 on your energy bills 

This is convenient - you only have one bill and one payment to think about, and a single point of contact for queries and if a problem arises - but it isn't always the cheapest way to buy your energy.

Should I consider a dual fuel tariff?

Dual fuel tariffs are made to look attractive by the inclusion of a discount from the supplier.

For example, it will say something such as: “If you take both gas and electricity from us and arrange to pay your bill by monthly direct debit, you will receive a discount of 15%.”

This discount reduces the price you would pay if you bought gas and electricity separately from that particular supplier. But it could be the case that the total cost of buying gas and electricity separately from two different suppliers would be less than a dual fuel contract.

That's why it makes sense to shop around for both single and dual fuel deals.

In other words, don't assume the discounted dual fuel deal will be the cheapest choice from across the whole market.

How can I switch to a dual fuel tariff?

If you check and find that a dual fuel tariff is the cheapest deal - or if you decide that it's worth paying a bit extra for the convenience of getting both fuels from one supplier - then it should be easy to switch.

Your new supplier will contact both your existing gas and electricity providers on your behalf. So you'll only need to fill in one application to switch to a dual fuel tariff..

Can everyone have a dual fuel tariff?

If your home only uses electricity, or your energy is provided by electricity and oil, you will not be able to sign up to a dual fuel (electricity and gas) tariff.

The best way to save in this situation is to use MoneySuperMarket to find the cheapest single fuel plan and opt for direct debit payments and paperless billing (both of which should get you further discounts).


The last British Gas deal that was cheaper, based on Ofgem average consumption figures, was the web saver 11 tariff, which was available until May 2011.