RangemasterRMB7248BL

Electric
Not self cleaning
Double built-under

£379Typical price

Test score

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If you're in the market for a low-cost double oven, but are squeezed for space and budget, then the Rangemaster RMB7248BL could fit the bill. This built-under model doesn't boast self-cleaning or touch-controls but if it does well at the cooking basics, then we won't hesitate to recommend it. Read on to find out how it got on in our stringent tests.

pros

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cons

What's included?

What is it?
Does the oven stick to the right temperature?
How well does it cook?
What’s the grill like?
How easy is it to use and clean?
Is there anything else I should know?
Should I buy it?

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KEY TEST RESULTS
Accuracy of oven controls
Grill
Cleaning

Dec 2024Last checked by Which?
Jul 2019First reviewed by Which?
Aug 2016Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

A person opens an oven door, revealing a round cake baking inside, with an electronic timer displayed above.

How we test built-in ovens

27 Feb 2026

Oven heat distribution

How we test oven heat distribution

We measure how evenly heat is distributed around the oven cavity by baking trays of shortbread on different levels and assessing how evenly they turn out.

Accuracy of oven controls

How we test accuracy of oven controls

This measures how closely the oven sticks to the temperature we set it at. Some ovens veer a long way from the correct temperature, while others are very accurate.

Preheating speed

How we test preheating speed

We measure how quickly the main oven, and the top oven if there is one, heats up to two different set temperatures.

Grill

How we test grill

We record which grills spread their heat evenly far and wide, and which ones will have you moving food around to get it evenly browned.

Ability to supply heat

How we test ability to supply heat

We bake a large fatless sponge cake and measure the evenness of browning and how well it rises. This is a measure of how consistently and evenly the oven spreads heat around the cavity.

Ease of use

How we test ease of use

Our assessors check how easy the oven and grill are to use. This includes using the controls, assessing how clear the markings around the buttons and dials are, and the ease of opening and closing the door. They also check how easy it is to adjust shelves and to load and unload food in both the oven and grill.

Cleaning

How we test cleaning

This is the ease of cleaning by hand, and also with any self-clean function.

Flexibility of space

How we test flexibility of space

We test the flexibility of space inside ovens with joints of beef, chickens and turkeys on roasting trays to see whether the space provided, and the shelf arrangement, allow them to fit in. We then check whether the ovens are flexible enough to allow another roasting tray to be fitted in above. We carry out this test on both top and main ovens.

Energy efficiency

How we test energy efficiency

We simulate roasting a whole chicken by heating a 2kg brick in the main oven for 1hr 40 mins. Electric conventional ovens are set to 200ºC, electric fan ovens are set to 170ºC and gas ovens at gas mark 6. We measure how much energy the oven uses overall, and also how much energy it uses per litre. Both these recordings feed into the energy efficiency star rating.

General
Type	Double electric built-under
Colour	Stainless steel
Main oven capacity	41 litres
Top oven capacity	30 litres
Main oven usable volume	24 litres
Top oven usable volume	14 litres
Height	72cm
Width	60cm
Depth	62cm
Annual running costs	£49.94
Supplied with 13 A plug	No
Additional info	We changed the way that we assessed ovens in 2017, so the results for ovens tested before 2017 aren't directly comparable.
Fuel type	Electric
Oven size	Double built-under
Built-in or built-under	Built-under

Features
Self cleaning type	Not self cleaning
Meat probe	No
Childproof	No
Smart oven	No
Steam oven	No

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RangemasterRMB7248BL

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pros

cons

What's included?

How we test built-in ovens

Oven heat distribution

Accuracy of oven controls

Preheating speed

Grill

Ability to supply heat

Ease of use

Cleaning

Flexibility of space

Energy efficiency

How this product's score compares with other built-in ovens we've tested

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Test results

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