---
product_id: 1837766
title: "3M Indoor Window Insulator Kit - Patio Door | Indoor Window Insulation Film Kit Helps Keep Cold Drafts Out, Warm Air In, And Reduce Condensation And Frost Buildup"
brand: "3m"
price: "€ 70.10"
currency: EUR
in_stock: true
category: "3 M"
url: https://www.desertcart.hr/products/1837766-3m-indoor-window-insulator-kit-patio-door-indoor-window-insulation
store_origin: HR
region: Croatia
---

# Boosts insulation by 90% Blocks cold drafts Easy DIY install 3M Indoor Window Insulator Kit - Patio Door | Indoor Window Insulation Film Kit Helps Keep Cold Drafts Out, Warm Air In, And Reduce Condensation And Frost Buildup

**Brand:** 3m
**Price:** € 70.10
**Availability:** ✅ In Stock

## Summary

> 🔥 Lock in warmth, lose the chill — your energy-smart upgrade awaits!

## Quick Answers

- **What is this?** 3M Indoor Window Insulator Kit - Patio Door | Indoor Window Insulation Film Kit Helps Keep Cold Drafts Out, Warm Air In, And Reduce Condensation And Frost Buildup by 3m
- **How much does it cost?** € 70.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/1837766-3m-indoor-window-insulator-kit-patio-door-indoor-window-insulation)

## Best For

- 3m enthusiasts

## Why This Product

- Trusted 3m brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Season Durability:** Scotch double-sided tape guarantees a secure, airtight seal that lasts through winter’s worst.
- • **Crystal Clear Clarity:** Ultra-transparent film ensures your view stays pristine—no fog, no frost, just pure clarity.
- • **Energy Bills? Slashed!:** Increase your window’s R-value by 90%, cutting heating costs and boosting home efficiency.
- • **Effortless Installation:** Peel, stick, and shrink—transform your patio door in minutes without professional help.
- • **Seal in Comfort, Seal out Cold:** Advanced heat-shrink film locks in warmth and blocks chilly drafts for a cozy indoor vibe.

## Overview

The 3M Indoor Patio Door Insulation Kit features a heat-shrink window film and Scotch mounting tape designed to insulate a 6'8" x 9' patio door. It increases single-pane window R-value by 90%, reduces condensation and frost buildup, and blocks cold drafts to lower heating costs. Easy to install with a wrinkle-free, crystal-clear finish, this kit provides an energy-efficient, durable solution for winter weatherproofing.

## Description

Product Description Available in a variety of indoor and outdoor window sizes, 3M Window Insulator Kits keep cold drafts out and warm air in through heat shrink window film and Scotch Window Film Mounting Tape. Quick and easy installation. 3M window kits stay up all season long with Scotch tape technology. Clearest window film available. desertcart.com With the 3M indoor patio door insulator kit, you can lower your heating bills during the winter and make your home more energy-efficient. Part of 3M's line of energy-saving products, this kit includes insulation film and a roll of double-sided mounting tape to create an airtight seal. Stretching the film removes wrinkles for a transparent view. This kit enables you to insulate one patio door measuring 6 feet 8 inches by 9 feet.Keep the Heat In and the Cold Out Made by 3M, this indoor patio door insulator kit contains insulation film along with Scotch film tape to keep cold drafts out and warm air in. As a result, you can reduce your heating costs during the winter. The film shrinks tight around your door frame for a transparent, wrinkle-free fit and is made to reduce condensation and prevent frost build-up. Double-Sided Mounting Tape for a Secure Seal Included with this kit is a 1/2-inch-by-13-4/5-yard roll of 3M film mounting tape to keep your insulation in place all season long. This double-sided tape seals off cracks and crevices, creates an airtight seal, and establishes a strong bond between the surface, the tape, and the insulation film, as recommended in ENERGY STAR's "Seal and Insulate" guidelines. Featuring a convenient, ready-to-peel liner, the tape adheres easily to a variety of surfaces and stays intact upon removal.Simple, Fast Installation Installing the door insulation is easy. You simply unfold the film and cut it to the width of the door frame, allowing an extra inch on all sides. Next, you firmly apply the mounting tape around the frame and remove the paper liner. Then you apply the film to the tape, starting at the top of the door, and reposition and stretch the film to remove wrinkles. Finally, you use a blow dryer to remove any remaining wrinkles, then trim any excess film.Made in the United States, and designed for indoor use only, this insulator kit can be used with aluminum, vinyl-clad, or painted or varnished wood molding, but it should not be applied to veneer paneling or Lauan mahogany molding. The film and tape should be removed from the door at the end of the season. The film measures 7 square yards, or 7 feet by 9.3 feet by 0.75 thousandths of an inch (H x W x D), and weighs 0.24 pounds.What's in the Box Insulation film and one roll of mounting tape.

## Features

- Clearest window film available
- Saves energy and reduces heating costs
- Reduces condensation and prevents frost buildup
- Included: (1) 7' x 9.3' film sheet, (2) rolls of tape each 1/2" x 500"
- Insulates one 6'8" x 9' patio door
- Stops drafts, prevents frost build-up and reduces condensation
- Applies easily, shrinking tight, wrinkle-free and clear on glass
- Increasing the R-value of single pane window by 90%

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0000CBJ80 |
| Best Sellers Rank | #117,845 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #87 in Weatherproofing Window Insulation Kits |
| Brand Name | 3M |
| Coverage | 68 square feet |
| Customer Reviews | 4.2 4.2 out of 5 stars (2,582) |
| Global Trade Identification Number | 00051131501256 |
| Included Components | 1 Pack |
| Item Dimensions L x W | 1"L x 1"W |
| Item Type Name | weatherproofing-window-insulation-kits |
| Item Weight | 0.45 Pounds |
| Manufacturer | 3M |
| Manufacturer Part Number | 2144W-6 |
| Manufacturer Warranty Description | Warranty |
| Material Type | Plastic |
| Model Number | 2144W-6 |
| Recommended Uses For Product | Thermal insulation, Moisture protection (Indoor) |
| UPC | 716080021957 051141381114 720698818267 051131501256 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** 3M
- **Global Trade Identification Number:** 00051131501256
- **Material:** Plastic
- **Product Dimensions:** 1"L x 1"W
- **Recommended Uses For Product:** Thermal insulation, Moisture protection (Indoor)

## Images

![3M Indoor Window Insulator Kit - Patio Door | Indoor Window Insulation Film Kit Helps Keep Cold Drafts Out, Warm Air In, And Reduce Condensation And Frost Buildup - Image 1](https://m.media-amazon.com/images/I/71vknjRB6uL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will this work for insulating from the heat of a hot climate too?**
A: I would assume so, though we live in Maine near the coast where it can be in the teens and 20s sometimesduring the weather; I assume it would work since 3M is an excellent product - the hardware versionsdon't seem to work as well. You'll need the 3M tape for this as well.

**Q: Has anyone had success applying this to a window without trim? Our 50s track house just has drywall-cased windows.**
A: I want an answer to this too! I also have the drywall-cased windows from the 50s. Thanks!!

**Q: I am from the South, so my big question is, does it insulates from heat so well as it does from cold? 
Will it last if you leave it permanently, or you need to replace it every year?
Third question would be, can you glue it against dry wall?
Thanks**
A: Old query, but for newbies: this would work as well to keep the A/C air away from the window pane, thus it would insulate heat as well as cold. It's just physics. It forms a dead air space just like a storm window (if you know what those are up north). You could leave it on, but probably would not last permanently. I don't see how you could use glue; it is intended to be mounted only with the double stick tape provided in the box. Browse other replies who have said that they applied it directly to dry wall (sheet rock).
BTW another response said:  “Yes but you can run into a moisture issue. We tried it and it it worked well except that the A/C created condensation on the plastic which eventually pooled up between the window and the plastic creating mold”

**Q: How does this hold up compared to frost king?**
A: This holds up much better then frost king... I have never had frost king last a whole season on my windows but the 3M lasts no matter how long the cold season has lasted.  I will never go back to using Frost King again.

## Frequently Bought Together

- 3M Indoor Patio Door Insulation, Insulator Kit for 6'-8" x 9' ft Patio Door, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2144W-6)
- Frost King V73/9H Indoor Shrink Window Kit 42 62-Inch, Clear, 9-Pack
- 3m Window Kit 84" X 237"Film

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hr/products/1837766-3m-indoor-window-insulator-kit-patio-door-indoor-window-insulation](https://www.desertcart.hr/products/1837766-3m-indoor-window-insulator-kit-patio-door-indoor-window-insulation)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-02*