---
product_id: 30636618
title: "HOT WATER TANK HEATER INSULATION JACKET DIY 'PREMIUM' KIT: ENERGY SAVING REFLECTIVE FOIL FITS 50 & 60 GALLON WATER TANKS. MANUFACTURER OF THIS KIT FOR 27 YEARS. EXCLUSIVELY SOLD BY 'JR GLOBAL SALES'"
brand: "reflective foil"
price: "¥14336"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/30636618-hot-water-tank-heater-insulation-jacket-diy-premium-kit-energy
store_origin: JP
region: Japan
---

# Energy Efficiency Boost 97% Heat Retention DIY Installation HOT WATER TANK HEATER INSULATION JACKET DIY 'PREMIUM' KIT: ENERGY SAVING REFLECTIVE FOIL FITS 50 & 60 GALLON WATER TANKS. MANUFACTURER OF THIS KIT FOR 27 YEARS. EXCLUSIVELY SOLD BY 'JR GLOBAL SALES'

**Brand:** reflective foil
**Price:** ¥14336
**Availability:** ✅ In Stock

## Summary

> 🔥 Insulate to Elevate Your Energy Game! 🔥

## Quick Answers

- **What is this?** HOT WATER TANK HEATER INSULATION JACKET DIY 'PREMIUM' KIT: ENERGY SAVING REFLECTIVE FOIL FITS 50 & 60 GALLON WATER TANKS. MANUFACTURER OF THIS KIT FOR 27 YEARS. EXCLUSIVELY SOLD BY 'JR GLOBAL SALES' by reflective foil
- **How much does it cost?** ¥14336 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/30636618-hot-water-tank-heater-insulation-jacket-diy-premium-kit-energy)

## Best For

- reflective foil enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Fire Rated Class 1/Class A ensures a non-toxic, safe environment—no foam or fiberglass hazards.
- • **Versatile Fit:** Designed for both 50 & 60-gallon electric and gas water heater tanks.
- • **All-in-One Kit:** Includes everything you need: foil body, spacers, tape, and easy-to-follow instructions.
- • **Eco-Friendly Choice:** Reduce your carbon footprint while enjoying a cozy home.
- • **Ultimate Heat Shield:** Patented Reflective Foil stops 97% of radiant heat loss, keeping your energy bills in check.

## Overview

The HOT WATER TANK HEATER INSULATION JACKET DIY 'PREMIUM' KIT is a comprehensive solution designed to enhance the energy efficiency of your home. With a patented reflective foil that stops 97% of radiant heat loss, this kit is fire-rated and safe, making it an eco-friendly choice for both electric and gas water heater tanks. It comes complete with all necessary components and easy installation instructions, ensuring a hassle-free upgrade to your energy-saving efforts.

## Description

HOT WATER TANK HEATER INSULATION JACKET DIY 'PREMIUM' KIT: ENERGY SAVING REFLECTIVE FOIL FITS 50 & 60 GALLON WATER TANKS. MANUFACTURER OF THIS KIT FOR 27 YEARS. EXCLUSIVELY SOLD BY 'JR GLOBAL SALES'

## Features

- Patented Reflective Foil Stops 97% of Radiant Heat Loss.
- Improves the Energy Efficiency of Your Home.
- Complete Kit is 'Fire Rated' Class 1/Class A: No 'Foam' Spacers (fire hazard),No Fiberglass, Non-Toxic,No Carcinogenics,No Fibers, 'Class 1/Class A' Fire Rating.
- DIY Complete Kit comes with: Foil Body (72" height x 76" circumference),Foil Spacers, Foil Tape. Step-by-step instructions. Lightweight,clean,easy to install. Suitable for both Electric & Gas Hot Water Heater Tanks.

## Product Details

- **Material:** Fiberglass
- **Brand:** REFLECTIVE FOIL
- **Coverage:** 60 gallons
- **Item Thickness:** 0.19 Inches
- **Recommended Uses For Product:** Insulating hot water tanks

## Images

![HOT WATER TANK HEATER INSULATION JACKET DIY 'PREMIUM' KIT: ENERGY SAVING REFLECTIVE FOIL FITS 50 & 60 GALLON WATER TANKS. MANUFACTURER OF THIS KIT FOR 27 YEARS. EXCLUSIVELY SOLD BY 'JR GLOBAL SALES' - Image 1](https://m.media-amazon.com/images/I/41T17Hd8BOL.jpg)

## Questions & Answers

**Q: What is the "R" value of this jacket?**
A: Reflective Foil does not use R-Values as its primary source of stopping heat loss, it uses 'Reflective Technology' which is based on 'blocking and reflecting' Radiant Heat back to its source as opposed to R-Values that 'hold and absorb' heat loss. Reflective Foil reflects up to 97% of Radiant Heat Loss. It also has a 'secondary source' of heat loss protection of R-5 to R-7 depending on the application by virtue of its construction of the laminated air bubbles. For many years when the topic of conversation turns to insulation, we have been conditioned  to think along the lines of R-Value. The R-Value type of insulations are generally associated with Fiberglass and cellulose insulation.
Fiberglass and Cellulose insulations have dominated the  Retail market for decades and do a reasonably good job depending on its application. The 'new'
insulation, 'Reflective Foil'  (I use that term loosely, as it has been around for many years) has been used in high tech areas and not so much in the Retail market until recently.  Generally speaking R-Value Fibrous insulations, 'holds and absorbs heat' and is limited to it capacity depending on its density and can break down over time. Reflective Foil, continues to block up to 97% of Radiant Heat and does not break down over time. 
NASA has been using Reflective Foil since the 1950's. See below a small excerpt from a NASA article:

NASA Uses Radiant Barrier.
In the mid 1950s, when Clark E. Beck, PE, of Wright-Patterson Air Force Base engineered the development of radiant barrier technology for NASA and the space program, he couldn't have envisioned the variety of applications for which this insulation material would someday be used.
NASA was trying to find a way to protect the astronauts during space walks from the extreme temperature shifts ranging from -273 degrees Celsius to
+238 degrees Celsius.  They discovered that they would have to have a
'seven-foot thick protective layer on the space suit' if they attempted to use conventional insulation.  Obviously, this was way out of the question.
Instead of trying to insulate the suits, they turned to reflective technology and used aluminum foil radiant barrier to solve the problem.
NASA reflected the heat of their own body back at the astronauts to keep them warm, while at the same time they used the foil to reflect the deadly direct radiation from the sun (radiant heat) out of the space suit to keep them cool.
I hope the above helps to understand the difference between Reflective Foil Insulation(Reflective Technology) and Fiberglass Insulation (R-Values).
Thank you for your inquiry. 

Best Regards,
JR Global Sales

**Q: What is included in the "kit"?  There is no mention of tape in the product description.**
A: Hi, thanks for your inquiry. It is a complete kit with Foil, Foil Spacers and Foil Tape. Thank you

**Q: I want to purchase a quantity of these for various homes. someone mentioned buying material at a dyi store. is this better? worse? or same material?**
A: Hi and Thank you for your inquiry. There are available 'Reflective Foil'  materials that can be bought in larger rolls on the market that come from domestic and overseas manufacturers . However, a lot of them have not been tested to measure  their effects on being able to reflect 'Radiant Heat' and also have not gone through the rigorous test of being CERTIFIED as a "Class 1/Class A" Fired Rated product. Hope this helps! Best Regards, JR Global Sales

**Q: Will this work on a 40 gallon hot water heater**
A: Absolutely.  I actually wrapped mine and had enough to wrap most of my sisters hot water heater too.  Very much worth every penny!

## Frequently Bought Together

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- Aluminum Foil Tape, 2 inch x 65 Feet (3.9 mil), Insulation Adhesive Metal High Temperature Heavy Duty HVAC Tape, Silver for Ductwork, Dryer Vent, HVAC
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-28*