---
product_id: 49435195
title: "Hotties Thermal Packs Replacement Core"
brand: "hotties"
price: "$40.43"
currency: USD
in_stock: true
reviews_count: 12
category: "Hotties"
url: https://www.desertcart.us/products/49435195-hotties-thermal-packs-replacement-core
store_origin: US
region: United States of America
---

# Perfect 23x19 cm size for versatile use Microwaveable & reusable heat core No gels, wheat, or odors – pure clean heat Hotties Thermal Packs Replacement Core

**Brand:** hotties
**Price:** $40.43
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your comfort game with the clean, consistent heat you deserve!

## Quick Answers

- **What is this?** Hotties Thermal Packs Replacement Core by hotties
- **How much does it cost?** $40.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/49435195-hotties-thermal-packs-replacement-core)

## Best For

- hotties enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Reusable:** Microwave-safe design lets you enjoy countless heat therapy sessions sustainably.
- • **Universal Compatibility:** Fits all Hotties Micros, Backwraps, Footwarmers & Cushions for seamless replacement.
- • **Clean & Odorless Comfort:** No gels, wheat, or wax means no unpleasant smells or mess—just pure soothing warmth.
- • **Clinically Trusted Relief:** CE-registered Class 1 medical device, ideal for arthritis, muscle aches, and period pain.
- • **Precision Heat, Every Time:** Patented fixed water weight ensures consistent microwave heating without guesswork.

## Overview

The Hotties Thermal Packs Replacement Core is a patented, microwaveable heat pack designed for reliable, odor-free warmth. Sized at 23x19 cm, it fits all Hotties Micros, Backwraps, Footwarmers, and Cushions. Featuring a fixed water weight inside a multilayer plastic pouch, it delivers precise heat without gels, wheat, or wax. CE-registered as a Class 1 medical device, it offers effective relief for arthritis, muscle pain, and more, making it a trusted choice for professional-grade heat therapy.

## Description

Product Description The replacement core is the "Hottie Thermal Pack". This is the patented part of your Hottie or backwrap. It is suitable for Hotties, Microhotties, Backwraps & Comfort Cushions. The "Hottie Thermal Pack" consists of a fixed weight of water absorbed on to a special grade of material, inside a multilayer plastic laminate pouch. This fixed weight of water, with no gels, waxes or wheat means the heat up times for a particular power of microwave oven can be mathematically calculated. These times are printed on the specially engineered plastic pouch, but please consult your full instruction and safety leaflet when using your Hottie or Back Wrap. Use with our made to measure outer covers: Hotties, micro-hotties and backwraps or buy to use with your own hot water bottle cover: Size 23cm by 19cm. All our products come complete with a Hottie Themal Pack included for instant relief from back pain, joint aches, period pain, muscle sprains and arthritis. CE Registered as a Class 1 medical device for heat therapy. Indications Arthritis, pain relief P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions Heat the compress in the microwave and place it in the desired place. Please note: do not apply to the skin immediately after heating. Safety Warning Follow Safety Leaflet Instructions Box Contains Hotties Replacement Core Thermal Pack, instruction leaflet See more

Review: Hottie replacement - Very good replacement @ a great price
Review: Love Hotties, - Great to be able replacement the inside pad

## Features

- Replacement Hotties Thermal Pack Core
- Suitable for Hotties Micros, Backwraps, Footwarmer, Cushion
- Microwaveable and Reusable
- 23cm x 19cm
- No Wheat, No Gel, No Odour

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IXJA320 |
| ASIN  | B00IXJA320 |
| Age Range Description | All |
| Best Sellers Rank | 5,355 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 14 in Adhesive Heat Patches |
| Brand | Hotties |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,823) |
| Customer reviews | 4.5 4.5 out of 5 stars (1,823) |
| Date First Available | 27 Oct. 2011 |
| Format | Pack |
| Is discontinued by manufacturer  | No |
| Item model number  | 6000043 |
| Manufacturer  | Hotties Thermal Packs Limited |
| Product Dimensions  | 23 x 19 x 2 cm; 599 g |
| Units | 1 Count |
| Weight | 630 g |

## Product Details

- **Age range (description):** All
- **Brand:** Hotties
- **Colour:** White
- **Material:** Plastic
- **Material Type Free:** BPA Free
- **Number of items:** 1
- **Package information:** Pack
- **Product benefits:** Arthritis
- **Special feature:** Microwaveable, Reusable
- **Unit count:** 1 Count

## Images

![Hotties Thermal Packs Replacement Core - Image 1](https://m.media-amazon.com/images/I/71Ar4kAfE5L.jpg)

## Questions & Answers

**Q: Does this come in a material cover?  If not where can I get one?**
A: This product is the replacement thermal core only, it doesn't come with a cover. However, there are many other product listing on Amazon that do come with a cover, just search for "Hotties". The lambswool cover is particularly popular.

**Q: Can anyone tell me please, how long do these stay warm?**
A: I have 4 of these and they hold their warmth for several hours depending on how long you heat them for and your natural body warmth. The max time you heat them depends on the wattage of your microwave (i.e., 800w) and you should never heat them for longer than the stated instructions or they can split making them useless. I usually heat mine for a max 2 min 30 seconds but recommend new users to start in 30 second increments and then check the temp of the hottie each time to make sure it isn't too hot for comfort or go over the recommended heat up time which can be easy to do if you are not sure of the wattage of your microwave. You can buy these with or without covers - the back wrap cover is quilted material and helps retain heat - if you use them sitting down with back against a cushion, the heat will also stay warm for longer. I rotate my 4 during the day with a back wrap so that as one starts to cool, the fresh (cold) replaces the worn one. As they still retain a little body warmth when warm, this prevents overheating by re-microwaving and potentially splitting the 'used' one. I started out with two which lasted for years, only split one after inadvertently overheating it and added to them over time so I always have a spare!

**Q: Has anybody had the hottie explode did it for 2minutes?**
A: Yes. I had been using it  occasionally for about a year. It recently exploded but I may have overheated it (it was already slightly warm). Also, I didn't see the pack puffing up in the microwave or I would have switched it off. Luckily it's mostly damp cloth inside, not just liquid. Purchasing a replacement core pack now.

**Q: can the pack be frozen and used as a cold pain relief pack ?**
A: To my astonishment, when one of our hotties burst, I opened it up and found it to consist of layers of absorbent tissue paper saturated with water.  as water is a good heat store and paper a good suspension medium, I in no way denigrate the manufacturers and in fact, congratulate them for their ingenuity. The common sense answer to the question is that if they (hotties) can conserve heat, (as in the old fashioned hot water bottle), they can conserve cold ( like ice cream in a broad necked thermos) Putting your hottie into a freezer may seem a bit drastic, but worth a try, as although water expands when frozen - hence burst pipes during a freeze up, this is very unlikely to cause the hottie to burst. Personally speaking, I would give it a try. My reservations include the fact that the insulation material round the hottie will slow down the desired cold transfer, and you might be better using the well tried frozen peas treatment.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Hottie replacement
*by T***A on 31 December 2025*

Very good replacement @ a great price

### ⭐⭐⭐⭐⭐ Love Hotties,
*by A***4 on 8 January 2026*

Great to be able replacement the inside pad

### ⭐⭐⭐⭐ Replacement for my old one
*by C***E on 12 October 2025*

Replacement for my old one. It does the job. Not too bulky either

## Frequently Bought Together

- Hotties Thermal Packs Replacement Core
- Hotties Micro Hottie - Microwave Hot Water Bottle - Lambswool Fleece - Grey
- Hotties Microhottie Microwave Hot Water Bottle -Lambswool Fleece - Cream

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-27*