---
product_id: 35556152
title: "Chimney Plus 390143 Protech Boxed Thermix Insulation"
brand: "chimney plus"
price: "£73.57"
currency: GBP
in_stock: false
reviews_count: 1
category: "Home"
url: https://www.desertcart.co.uk/products/35556152-chimney-plus-390143-protech-boxed-thermix-insulation
store_origin: GB
region: United Kingdom
---

# Chimney Plus 390143 Protech Boxed Thermix Insulation

**Brand:** chimney plus
**Price:** £73.57
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Chimney Plus 390143 Protech Boxed Thermix Insulation by chimney plus
- **How much does it cost?** £73.57 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/35556152-chimney-plus-390143-protech-boxed-thermix-insulation)

## Best For

- chimney plus enthusiasts

## Why This Product

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

## Description

This TherMix is boxed especially for UPS shipments. TherMix insulation has been used as a chimney liner insulation for decades. It is UL Listed for use with Ventinox Liners as well as many other liner brands in the industry. It is a dry mix that should be mixed thoroughly with from 7-9 gallons of water. Then it is easily poured into the cavity between the stainless steel liner and the chimney flue. TherMix is lightweight and adds superior structural strength to the chimney installation. TherMix maintains a consistent liner temperature and reduces condensation. It increases efficiency aiding in quick start-ups and helps establish draft and greatly reducing smoking upon starting. Each 40 pound bag of TherMix insulates 3.25 cubic feet.

## Features

- Manufactured to the Highest Quality Available.
- Design is stylish and innovative. Satisfaction Ensured.
- Great Gift Idea.

## Images

![Chimney Plus 390143 Protech Boxed Thermix Insulation - Image 1](https://m.media-amazon.com/images/I/714txDP9ZuL._SL500_.gif)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Five Stars
  

*by S***E on Reviewed in the United States on January 22, 2015*

as advertized

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**Shop now:** [https://www.desertcart.co.uk/products/35556152-chimney-plus-390143-protech-boxed-thermix-insulation](https://www.desertcart.co.uk/products/35556152-chimney-plus-390143-protech-boxed-thermix-insulation)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-16*