Aga Oven Temperature Guide

A lot of our customers inherit their Aga Cooker with house sales. Whilst it's great to inherit the heart of the home, it can be somewhat daunting, especially as most traditional Aga Cookers don't have typical oven temperature indicators. That's why we created this quick guide to finding your perfect aga oven temperatures.


How Hot Should your Aga Cooker be?

The easiest rule to remember is:


Ideally, an Aga Cooker should be around 220-240c in the top right-hand oven.


This allows the rest of the ovens and plates to fall in line with retrospective temperatures.


An Aga Cooker isn't a conventional oven. It uses gentle radiant heat from the cast iron, as opposed to the dry, fan-propelled air of modern cookers. This is why 230c sounds like a high temperature in comparison to its counterparts. This radiant-heat cooking method is gentler on food and helps to lock in nutrients and flavour - delicious!


Roasting Oven: 220c to 240c

Baking Oven: 170c to 190c

Simmering Oven: 110 to 140c

Warming Oven: 60c to 80c


Boiling Plate: approx 315c

Simmering Plate: approx 215c


Your 'heat indicator' is located above the roasting oven door. When your Aga is at optimum temperature, the mercury should be somewhere between the black and red zones. Some may run more towards the red, some may run more towards the black - it's best to test your top oven temperature for a more accurate reading.


How Do You Take Temperature Readings?

To take temperature readings, you'll need an in-oven thermometer.


  • Make sure you place your thermometer on a shelf, in the dead centre of the oven (half way up and half way to the back).
  • This placement gives you the most accurate temperature reading from an aga.
  • Only keep your thermometer in the oven for a maximum of 10 minutes. Any longer and they can degrade from the heat.
  • Take a reading as soon as your oven door is opened.


The diagrams here show you how the heat moves around your aga cooker - with the hottest parts receiving the heat first, and the coolest receiving the heat last.


  • Traditional Aga cookers take around 7 hours to heat up from cold. (Our Efficient Remanufactured Models take as little as 50 minutes!).
  • If you adjust the temperature setting slightly, you should wait around 4 hours for it to rise/fall in temperature.
aga temperatures for 4 oven models


Our Controllable ElectricKit System allows a lot more controllability vs traditional aga cookers:


  • You can turn individual ovens on/off or up and down in temperature.
  • Using the hot plates does not affect oven temperature.
  • Upgrade one of your hot plates to an induction hob unit.
  • Schedule the ovens to turn on and off whenever you need.
  • Extremely efficient in running costs (less than £1 per day is possible!).


Upgrade your current aga to an ElectricKit system or buy of of our Refurbished Aga Cookers with the system pre-installed.

We're Saltire Cookers.


We specialise in Refurbished Aga Cookers and Electric Aga Conversions to turn older Aga Cookers into efficient, controllable models (without losing the traditional design or radiant heat cooking).


Out of all of our cooker models, the brand new Esse Cookers offer unrivalled cooking experience, and the brand new Everhot Cookers are designed to be 'always on' whilst offering the lowest running costs possible.


We're Saltire Cookers.


We specialise in Refurbished Aga Cookers and Electric Aga Conversions to turn older Aga Cookers into efficient, controllable models (without losing the traditional design or radiant heat cooking).


Out of all of our cooker models, the brand new Esse Cookers offer unrivalled cooking experience, and the brand new Everhot Cookers are designed to be 'always on' whilst offering the lowest running costs possible.


More Posts From Our Blog:


by Steven Johnson 24 April 2026
Recently, we added the 5 Oven version of the ElectricKit Advanced to our range.
by Steven Johnson 16 April 2026
Come with us to convert an old oil aga cooker to our controllable ElectricKit Advanced system. It benefits from a full touchscreen control panel with independent temperature control of the ovens and hotplates. You can upgrade to the ElectricKit Induction Hob for even faster heat up times and lower running costs.
by Steven Johnson 25 March 2026
If your Aga Cooker doors have started sticking, or letting steam out of your ovens, they may need a little adjustment.
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