For many homeowners across the Cotswolds, Worcestershire, and the Midlands, an AGA isn’t just a cooker — it’s a lifestyle. The gentle warmth, the cast-iron finish, and the nostalgic hum make it the heart of countless heritage kitchens. But if you’ve ever wondered how an AGA differs from a standard oven (and whether you can — or should — have both), this guide breaks it all down.

What Is an AGA?

An AGA cooker is a heat-storage oven made from cast iron, designed to stay on continuously and radiate gentle, even heat throughout the kitchen.
Unlike modern ovens that switch on and off for each meal, AGAs are constantly warm, creating a steady cooking environment that many describe as “effortless and forgiving.”

Originally designed in the 1920s, the AGA was built for homes without central heating — meaning it didn’t just cook; it heated the kitchen, dried clothes, and even provided hot water in some models.

The Difference Between an AGA and a Conventional Oven

The most obvious difference is how they produce and manage heat. A standard oven uses direct heat from a gas or electric element, switching on and off to maintain temperature. An AGA, on the other hand, stores heat in its cast-iron body and releases it slowly and evenly. This radiant heat cooks food from all directions, producing perfectly tender roasts, fluffy cakes, and slow-cooked stews with minimal effort.

AGAs also tend to stay warm all the time, creating a naturally cosy kitchen environment. Traditional models run continuously, whereas modern versions and electric conversions can now be turned on and off or even timed to suit your schedule.

Another key difference is in functionality. An AGA usually has multiple ovens — one for roasting, one for baking, one for simmering, and one for warming — along with two hotplates on top for boiling and simmering. It’s an entire cooking system built into one elegant appliance.

By contrast, a modern oven is designed purely for cooking, heating up on demand and cooling down once switched off. It doesn’t contribute to room warmth, nor does it have the same multi-purpose versatility.

Do People Have Both an AGA and an Oven?

Many homeowners today choose to have both — particularly those in larger or heritage properties. The AGA is often used as the main cooker and heat source in winter, while a secondary electric or fan oven is used for quick, high-temperature meals in summer.

This dual setup offers flexibility. You can keep the AGA in “slumber mode” during warmer months, saving energy, and rely on your secondary oven for day-to-day cooking. It’s a practical arrangement that allows you to enjoy the best of both worlds — traditional comfort and modern convenience.

Does an AGA Replace Central Heating?

Not entirely, but it helps. In older homes, AGAs often doubled as a heating source for the kitchen and nearby rooms. Some older models even connected to the home’s hot water or central heating system. While most modern houses use a separate boiler or central heating setup, an AGA still provides valuable background warmth that reduces the strain on your heating system.

For homeowners in rural areas, this can make a noticeable difference in comfort and efficiency, particularly during the colder months.

“AGA or Oven — What’s Right for Your Home?”

“The Heart of the Kitchen, Then and Now”

“Cooking Meets Comfort in Every Cast-Iron Detail”

“Why More Homeowners Still Choose the AGA”

“AGA or Oven — What’s Right for Your Home?” “The Heart of the Kitchen, Then and Now” “Cooking Meets Comfort in Every Cast-Iron Detail” “Why More Homeowners Still Choose the AGA”

What Does an AGA Actually Do?

An AGA is far more than an oven. It’s a multi-functional heat source designed to simplify and enhance everyday life. It roasts, bakes, simmers, and warms — all without the need for timers or preheating. Many owners also use their AGA to dry laundry, warm boots, or defrost food gently.

Because it relies on stored heat, cooking with an AGA feels different. You learn to use temperature zones and the natural rhythm of the cooker, which is why many describe it as “cooking by feel” rather than by precision.

Running Costs and Efficiency

Running an AGA can be more expensive than operating a standard oven, but modern technology has made huge improvements in efficiency. Traditional oil and gas AGAs, which run continuously, can cost between £2,500 and £3,500 per year to operate. Electric AGAs are slightly lower, averaging £2,800 to £3,100 per year.

However, with modern electric conversion systems — such as the Electrickit Advanced — owners can now control each oven and hotplate individually and switch them off when not in use. This has reduced running costs to roughly £1,000 to £1,400 per year, depending on usage.

By comparison, a standard electric oven costs around £150 to £300 per year to run.

Who Is an AGA Best Suited For?

An AGA is ideal for homeowners who value warmth, character, and a more traditional way of living. They’re especially popular in heritage homes, country cottages, and farmhouses where the kitchen acts as the hub of daily life.

If you love slow-cooked meals, appreciate long-lasting craftsmanship, and enjoy the warmth an AGA brings to your home, it’s a perfect fit.

However, if you live in a smaller or modern home where space and energy efficiency are top priorities, a modern oven — or a combination of both — may be a better choice.

The Bottom Line

An AGA isn’t just a cooker — it’s a part of your home’s personality. It replaces more than just an oven; it replaces the need for multiple appliances, creates warmth throughout the house, and adds a touch of timeless British charm.

While it may not completely replace your central heating, it transforms the kitchen into a cosy, welcoming space and makes cooking an experience rather than a chore. And with the latest electric conversion options, AGAs now combine heritage and efficiency better than ever before.

Book Your AGA Consultation in the Midlands

If you’re considering installing, restoring, or converting an AGA, our experienced engineers offer:

Full installation and upgrade consultations
Energy usage comparisons for oil, gas, and electric models
Advice on combining AGAs with central heating systems
Bespoke servicing and performance optimisation

📞 Call us today to discuss your AGA options
📧 Request a free energy comparison
🌿 Trusted by homeowners across the Cotswolds, Worcestershire & Oxfordshire

Book Now!