whumsdog Magnetic Fireplace Cover 42"x24" Draft Blocker — Flame-Retardant, Padded Insulating Blanket

This whumsdog Magnetic Fireplace Cover is a padded, magnet-backed blanket that seals your indoor fireplace opening to block drafts, odors, and debris.

If cold air seeps through your unused fireplace or warm conditioned air escapes from your living room, a magnetic fireplace blocker offers a quick, reusable seal. Made from flame-retardant Oxford fabric with dense internal padding and twelve powerful magnets, this cover attaches to metal fireplace frames and creates a thermal barrier that helps reduce drafts and visible soot from entering your space.

How does this cover stop drafts and save energy?

The combination of thick flame-retardant fabric and a sponge core slows the movement of air through the fireplace opening. When the magnets hold the blanket flush to a compatible metal frame, it forms a continuous barrier that reduces heat transfer and limits cold air infiltration.

• Dense sponge filling adds insulating thickness to the cover.
• Twelve strong magnets secure the blanket to iron-containing frames.
• Flush fit reduces convective air flow and visible drafts.
• Works in both winter (retain heat) and summer (keep cool air inside).

Will the magnets stay attached and is the fabric heat-safe?

Powerful magnets are arranged around the perimeter so the blanket adheres securely to metal frames that contain iron, nickel, or cobalt. The outer fabric is thick, flame-retardant Oxford cloth, intended for use only after the fire is fully extinguished and the hearth cooled.

• Each magnet has high holding force but should not be exposed to high temperature.
• Do not press magnets directly into a hot fireplace — allow cooling first.
• Flame-retardant material reduces fire risk when used correctly.
• Avoid installation on non-ferrous frames (aluminum, brass) where magnets won’t stick.

How do I choose the right size and install or store the blanket?

Measure the visible opening of your fireplace and select the closest larger size to ensure full coverage. Installation is simple: place the magnet edge against your metal frame and let the magnets pull the blanket into place; when not in use the cover folds flat for compact storage.

• Available in multiple sizes up to 51x39 inches—pick a size slightly larger than your opening.
• Vacuum-packed for shipping; allow 24 hours to expand after unpacking.
• Foldable design stores in a closet or under a bench when not in use.
• Manual included with fit and care instructions.

What maintenance or precautions should I follow?

To prolong magnet strength and fabric life, keep the blanket away from prolonged high heat and follow gentle cleaning guidance. If the product becomes soiled, spot-clean the outer fabric and ensure the magnets are dry before storage.

• Use only after the fireplace has fully cooled; heat can demagnetize magnets.
• Spot clean or hand wash according to care instructions; air dry completely.
• Inspect magnets and seams occasionally for wear and replace if damaged.
• Store folded in a dry place to prevent moisture damage.

Who is this for: The whumsdog Magnetic Fireplace Cover is suited to homeowners and renters with iron-containing fireplace frames who want a low-effort, reusable way to reduce drafts, minimize soot and odors, and improve indoor comfort. It’s a practical accessory for seasonal sealing, energy-conscious households, and anyone who needs a fast, non-permanent solution to close off a cold or unused fireplace while preserving the option to reopen it later.