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I would never use one of these because I know how clammy and cold it is going to be when the heat runs out.
by JohnJamesRambo 5y ago
I would never use one of these because I know how clammy and cold it is going to be when the heat runs out.
- DocTomoe 5y agoHm, the ones I am using usually are still warmer than body warmth on the next morning... YMMV
- Flashtoo 5y agoAn alternative would be something like a bag of rice or cherry stones. You can microwave them and they won't feel cold when they lose their heat. (See also https://news.ycombinator.com/item?id=30025026 https://news.ycombinator.com/item?id=30025026)
- thrwy_ywrht 5y agoMany/most hot water bottles have a knitted fabric cover. When the heat runs out (which takes many hours), you are not in direct contact with the rubber/plastic body of the water bottle, so there is no sensation of cold or clamminess.
- kaybe 5y agoThe coldest they become is body temperature under the blanket. It would only have a chance to become colder than its surroundings if the water had a way to evaporate, which it doesn't.