Does this come in a material cover? If not where can I get one?

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.

Can anyone tell me please, how long do these stay warm?

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!

Has anybody had the hottie explode did it for 2minutes?

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.

can the pack be frozen and used as a cold pain relief pack ?

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.

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Description

🔥 Stay warm, stay ahead — the ultimate heat therapy core for pros on the go!

CLEAN ODORLESS - No gels, wheat, or wax—pure heat without any unwanted smells or mess.
LONG LASTING WARMTH - Microwave for minutes, enjoy soothing heat that lasts for hours.
MEDICAL GRADE RELIEF - CE Registered Class 1 medical device, trusted for arthritis, muscle, and joint pain.
PRECISION HEAT THERAPY - Patented water-absorbed core delivers consistent, calculable warmth every time.
VERSATILE COMPATIBILITY - Fits Hotties Micros, Backwraps, Footwarmers & Cushions for all-day comfort.

The Hotties Thermal Packs Replacement Core is a patented, microwaveable heat pack designed for targeted pain relief. Measuring 23cm by 19cm, it uses a fixed water weight inside a multilayer pouch to provide consistent, odorless warmth without gels or wheat. Compatible with various Hotties products, it offers hours of reusable heat therapy and is CE registered as a Class 1 medical device, ideal for arthritis, muscle aches, and joint pain.

Reviews

M**.

Good product.

I have used these items for a long time and like them very much. They keep warm for many hours.

11.01.2025

J**O

Price

Great item , price and speedy delivery, would buy again

11.02.2025

S**8

Great comforters!

I've had these a couple of these Hotties for two years now and they are highly commendable, take up to a couple of minutes in the microwave and you have the perfect comforter for a good couple of hours. I have recently purchased two replacement cores for these as one of them appears to be 'over expanding' on heating and I am concerned that they may lose their safety flexibility with age. Otherwise a great buy for that bedtime warmth on demand.

21.12.2024

A**R

Safe and user friendly

I have been using theses for years. These are replacement hot packs. Long lasting and hold heat well

12.11.2024

L**Y

Better than a hot water bottle and a wheat bag

I have four of these Hotties, I’ve also bought one each for two of my neighbours. Far easier to warm up in the microwave, and certainly less dangerous than pouring boiling water into a traditional hot water bottle if have shaky hands. They are far more comfier to lay against to ease back pain, without the lump of a hot water bottle plug, sticking in your back, and they stay warm for ages. I put one on my pillow before I get into bed and a couple further down the bed, which keeps my legs and feet warm… The only electric you use is the three minutes for each one in the microwave to heat them up. I totally recommend these Hotties.

5.03.2024

M**F

good value warmth

It does what it says and unlike other ones I have bought if you cuddle it , it never goes cold as your body keeps the heat in.

1.03.2025

M**L

Fantastic

These need very little heating in the microwave to last for a good couple of hours.I find them much better and safer than the old hot water bottles, they seem to last longer too.Ordered 2 so I had a spare.Great customer service and communication too

14.11.2024

M**N

Ok if right size ordrerd

Make sure you check the size, too big for my cover

22.04.2025

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