MFH Gel Heater

The warmer works without problems, it's reusable, cheaply made and solid. The only downside is the short operating time, although often that hour was enough.

Good warmer – works for an hour, which is enough to warm up. After boiling again, it regains functionality. The downside is the short heating time, but for me it’s sufficient.

This gadget has made my hands warm in winter many times, and at night it also warmed my feet in the sleeping bag. Great thing – heats well and can always be refreshed in boiling water, unlike chemical warmers.

The product meets expectations. It's great for trips to the forest. I definitely recommend it – I plan to buy it again. I think it will warm your chest very well.

A solid and efficient warmer. I won't specify the exact heating time as it depends on the weather. It has a lot of fluid and is the right size. I’ve tested smaller and larger ones – this one is really worth it because the smaller ones heat for much less time. I’ve regenerated it about 30 times already without any problems. The pouch is durable – it never activated accidentally. Among sodium acetate warmers, it's hard to find a better one.

I bought three warmers – two work without any problems, in the third the metal plate is so hard that it could tear the liquid pouch with stronger pressure. I think there should be better quality control at the factory.

Fulfils its purpose, allows you to warm up when needed, which is very important for thermal comfort. It is very warm for the first hour, then it starts to cool down.

After activating by clicking the plate, it heats up strongly at first, then gradually weakens – an hour of heating is the maximum. It looks delicate, but actually it is durable and withstands transport well. I recommend it.

The warmer works well – initially it heats strongly, but the temperature drops quite quickly and after an hour it is already much cooler. Big plus for being reusable.

The warmer is very practical, especially during long walks on cold days. It quickly warms hands, is lightweight, easy to use, and you can always keep it in your backpack.

The warmer can be used multiple times, which is a huge advantage. It's quite big, well-filled, and it doesn’t look cheap. It effectively warms the body or hands in a pocket. Very good value for money.

Great size, perfect for warming both hands. It keeps warm for almost an hour, although you have to struggle a bit with the hard disc when activating, but it shouldn't be too much trouble.

Very good warmer, it has worked at least 50 times, but when I tried heating it a few times directly in a kettle, a hole appeared from contact with the heating element (next time I’ll try to insulate it). I will definitely buy a few more.

I've only used it once so far, under a jacket when I was surprised by a cold wind coming down from the trail. The warmer under a draughty jacket and fleece didn't provide much heat, but because of its size it warmed a larger area of my body. It gave off the most heat between the 3rd and 15th minute after activation. After 40 minutes it was only suitable for warming hands in my pocket.

It really heats strongly for the first 15–20 minutes, then it gradually becomes less warm and after about an hour it gets lukewarm. It can be reused after boiling. A good solution to keep warm.