The second best in terms of energy efficiency, and dish-washer safe, this sleek looking slow cooker also requires the least washing up as you can sear and stew in the same pot.

Morphy Richards Sear And Stew, 3.5L

£41.49

36.99p

COST:

This model is cheap and simple, with two settings. It works well and is a great option if you are on a budget, as it costs just over 39p for eight hours of cooking, using 144 watts per hour.

George at Asda, 3L

£13

36.17p

COST:

This model is relatively affordable, but it has one of the higher energy efficiency ratings, using 150 watts per hour. There are four settings – auto, low, high heat and keep warm.

Swan Oval, 3.5L

£27.99

40.8p

COST:

This one is definitely the best in terms of functionality, with its digital screen and in-built timer. While it’s the most expensive listed, it has a bigger capacity, which is also the reason it is costlier to run at 240watts per hour.

Crock-Pot, 4.5L

£44.99

65.28p

COST:

It’s one of the priciest appliances to buy and to run, clocking up 161.5 watts per hour. So it’s up to you if you want something pretty or prefer to save money.

Salter Cosmos, 3.5L

£37.99

43.93p

COST:

It’s one of the more costly cookers to run, at 151 watts per hour, but it will still only cost 41p if you leave it on all day. And it has a chalkboard on the side – perfect for scribbling a reminder of when to turn it off.

Russell Hobbs Chalkboard, 3.5L

£25

41.07p

COST:

A simple and affordable option. Quite basic in looks, the stainless steel is easy to keep clean. It’s got three settings – low, medium and high – and a red light to tell you whether it is on or not.

Daewoo Stainless Steel, 3.5L

£26.99

37.81p

COST: