Hi, sorry about the English... Our oven was causing the power to trip. The oven is an IKEA REALISTISK, about 4 years old. I tracked the issue down to the bottom heating element, which failed quite spectacularly. I’ve ordered a new heating element. But the insulation on the bottom (between the heating element and the bottom metal sheet of the oven) is quite damaged. Anyone know where I can buy new insulation? It appears to be mineral wool covered with aluminium foil. But if there is another insulation product that works, please let me know. Thanks!