Suitable Size: First you need to confirm whether your fireplace vent can absorb magnets. We will provide you with two-volume magnetic fireplace vent
Magnetic Fireplace Draft Stopper Improves Insulation Magnetic Fireplace Cover
8 Best Fireplace Draft Stoppers
Magnetic Fireplace Blanket,Magnetic Fireplace Draft Stopper to Block Cold Air&Heat Loss for Summer Winter,Magnet Fireplace Screen Indoor Chimney Vent Covers Energy Saver,Black(Small 39 W x 32 H) : Home & Kitchen
4 Pieces Magnetic Fireplace Draft Stopper Fireplace Vent Cover Magnetic Fireplace Draft Blocker for Block Cold Air from Vent to Prevent Heat Loss (36 x 6 Inch) : Home & Kitchen
Magnetic Fireplace Blanket,Magnetic Fireplace Draft Stopper to Block Cold Air&Heat Loss for Summer Winter,Magnet Fireplace Screen Indoor Chimney Vent Covers Energy Saver,Black(Small 39 W x 32 H) : Home & Kitchen
Magnetic Fireplace Cover, Fireplace Blocker Blanket
Magnetic Fireplace Cover, 45 x 34 Fireplace Blanket
Fireplace Cover - Temu
Fireplaces Draft Stopper Vent Covers Magnetic Fireplaces Cover Screens Insulation Blocker Stops Overnight Heat Loss - AliExpress