Based on this product's specifications, here are some alternatives and similar models
Heat reflector foil Tesa 55157
Summary description:
The Tesa Heat Reflector Foil is 1 m long and 700 mm wide, designed to improve energy efficiency by reflecting heat back into the room. Ideal for use in homes and offices, it helps reduce heating costs and enhances comfort. Its easy application makes it a practical choice for anyone looking to optimize their space.