Suzanne W Montgomery , AL November 09, 2024 Appliance: Whirlpool Electric Range RF315PXYW0 Whirlpool Range Rf315pxyw0: Oven insulation blanket replacement. How to replace Oven Insulation. Opened the stove, pulled out the old insulation, vacuumed and wiped down the interior of the unit, wrapped the new blanket into place, closed everything back up. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes