: Install the curtain rod 15–20cm above the window frame to cover the wall and prevent warm air from rising out through the top. 3. Recommended Online Retailers (2026) Thermal curtain buying guide - ManoMano
: Floor-length curtains provide the best insulation by creating a complete barrier. If using sill-length, ensure they overlap the sill by at least 15–20cm. buy thermal curtains online
: Can be retrofitted to existing curtains or bought as a "thermal-lined" set for maximum energy efficiency. : Install the curtain rod 15–20cm above the
: Thermal curtains focus on trapping heat, while blackout curtains focus on light exclusion. For both benefits, search specifically for "thermal blackout" curtains. 2. How to Measure for Maximum Efficiency If using sill-length, ensure they overlap the sill
: Prioritize heavyweight fabrics like velvet , wool , or heavyweight polyester for natural heat retention.