---
product_id: 564947619
title: "Chimney Balloon 21x10 Max 2-Ply Inflatable Chimney Pillow Fireplace Draft Stopper, Fireplace Cold Air Blocker, Works Better Than a Chimney Flue Cover Plate Damper as a Fireplace Blocker"
brand: "the chimney balloon"
price: "¥15382"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/564947619-chimney-balloon-21x10-max-2-ply-inflatable-chimney-pillow-fireplace
store_origin: JP
region: Japan
---

# Inflates to fit 17"x7"–21"x10" flues Blocks cold drafts & heat loss DIY inflation with mouth or pump Chimney Balloon 21x10 Max 2-Ply Inflatable Chimney Pillow Fireplace Draft Stopper, Fireplace Cold Air Blocker, Works Better Than a Chimney Flue Cover Plate Damper as a Fireplace Blocker

**Brand:** the chimney balloon
**Price:** ¥15382
**Availability:** ✅ In Stock

## Summary

> 🎈 Seal the chill, block the spill — your fireplace’s invisible guardian!

## Quick Answers

- **What is this?** Chimney Balloon 21x10 Max 2-Ply Inflatable Chimney Pillow Fireplace Draft Stopper, Fireplace Cold Air Blocker, Works Better Than a Chimney Flue Cover Plate Damper as a Fireplace Blocker by the chimney balloon
- **How much does it cost?** ¥15382 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/564947619-chimney-balloon-21x10-max-2-ply-inflatable-chimney-pillow-fireplace)

## Best For

- the chimney balloon enthusiasts

## Why This Product

- Trusted the chimney balloon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Setup:** Inflate easily by mouth or air pump with a 7" handle valve and 2-foot inflation tube for quick installation.
- • **Perfect Fit Seal:** Inflates precisely to cover chimney flues from 17"x7" up to 21"x10" for airtight protection.
- • **Dual-Season Defense:** Keeps winter chills and summer odors out, ensuring year-round comfort and freshness.
- • **Superior Insulation:** Stops heat loss and blocks outdoor pollutants, smoke, and noise better than traditional flue covers.
- • **Removable & Reusable:** Deflates and stores compactly, ready to protect your home whenever you need it.

## Overview

The Chimney Balloon 21x10 is an inflatable, two-ply draft stopper designed to fit rectangular chimney flues between 17"x7" and 21"x10". It blocks cold drafts, odors, smoke, and noise, improving home insulation and air quality. Easy to inflate by mouth or pump, it’s removable and reusable, providing superior protection compared to traditional chimney flue covers. Not suitable for active gas log fireplaces.

## Description

Chimney Balloon 21x10 Max 2-Ply Inflatable Chimney Pillow Fireplace Draft Stopper, Fireplace Cold Air Blocker, Works Better Than a Chimney Flue Cover Plate Damper as a Fireplace Blocker

## Features

- The 21×10 Chimney Balloon plugs a rectangular chimney flue that is between 17”x7” to 21”x10”. The handle valve is 7” long. Every Chimney Balloon draft stopper includes a two-foot-long inflation tube.
- IMPORTANT - The Chimney Balloon chimney plug CANNOT BE USED in an active GAS LOG SET. For safety, a GAS LOG set would need to be DISABLED or REMOVED in order to use the Chimney Balloon fireplace plug.
- WINTER - The Chimney Balloon fireplace draft stopper blocks cold fireplace drafts and smells from a chimney. Stops heat loss by acting as a chimney plug draft stopper that air seals and insulates.
- SUMMER - In warmer weather the Chimney Balloon Chimney Pillow flue hole cover stops smoky odors, drafts, noise or debris from entering the home.
- DIY - You can inflate the Chimney Balloon fireplace draft blocker by mouth or with an air bed pump. The fireplace balloon is easily deflated and removed when you are ready to use your fireplace.
- The Chimney Balloon chimney blocker creates a chimney seal that prevents the fireplace from snorkeling in outside pollution, roof heat, and smoke from wildfires.

## Images

![Chimney Balloon 21x10 Max 2-Ply Inflatable Chimney Pillow Fireplace Draft Stopper, Fireplace Cold Air Blocker, Works Better Than a Chimney Flue Cover Plate Damper as a Fireplace Blocker - Image 1](https://m.media-amazon.com/images/I/417awJHgipL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Chimney Balloon 21x10 Max 2-Ply Inflatable Chimney Pillow Fireplace Draft Stopper, Fireplace Cold Air Blocker, Works Better Than a Chimney Flue Cover Plate Damper as a Fireplace Blocker
- Chimney Balloon® 23" Valve/Handle Extension (for Use with Any Size

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**Shop now:** [https://www.desertcart.jp/products/564947619-chimney-balloon-21x10-max-2-ply-inflatable-chimney-pillow-fireplace](https://www.desertcart.jp/products/564947619-chimney-balloon-21x10-max-2-ply-inflatable-chimney-pillow-fireplace)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-05*