Discover if the AGA eR3 Series model is the right AGA cooker for you with our helpful test drive video. Cookers in the AGA eR3 Series range are all electric, so they are cheaper to run and easier to control. These models are part of our Everyday Radiant Heat collection so are designed to be on when you need them and off when you don’t. With fast heat up times, this cooker is ideal for modern life.