1.Introduction
2.Why Does My Hot Water Bottle Go Cold Quickly?
3.How to Keep Your Hot Water Bottle Warm for Longer
4.Conclusion
Introduction
Hot water bottles are the oldest forms of providing warmth and comfort to the aching parts of the body. Whether one is using it to warm up aching limbs: to warm up one’s bed during the cold season or for the simple pleasure of applying a heat bag, the loss of heat is a let down. A hot water bottle that discharges heat more often than anticipated is quite provoking, thereby makes the user to look for warmth again. Why does it do this though, and how can you increase the heat time? Below let’s have a closer look at the underlying processes and some helpful tips to keep your hot water bottle warm throughout the night.
Why Does My Hot Water Bottle Go Cold Quickly?
Several factors contribute to how quickly a hot water bottle loses its heat:
1.This paper focuses on the following insulation properties of the hot water bottle.
All the same, the material of the hot water bottle is a crucial factor that determines thermal conductivity that occurs in the bottle and dictates the degree of heat in the material. Traditionally, hot water bottles are made of rubber, polyvinyl chloride or thermoplastic which are normally insulating and will allow heat to escape gradually. Among them rubber is not the very good insulator, which means that it can freely let the warm air inside go out. Furthermore, latest designs might include thermal insulation to keep the hot water warm longer while holding it; even the top hot water bottles will eventually get cold.
2.It is important to qualify the specifications of the test setting, especially the temperature at the start of the experiment. The last parameter that you must ensure before using the hot water bottle is the temperature of water you used. If you place the hot water bottle in cold water or use the water that is not hot enough will not stay hot for long. The most recommended water temperature should be 176°F-194°F (80°C-90°C). Temperatures, which are either too low or slightly warm, will not help in retaining heat for a meaningful period of time and hence will make the bottle cool faster.
3.Environmental Factors
Environmental conditions in which the hot water bottle is used determines the rate of heat loss among the conditions. For example, when you put it in a cold room or near a window that has a draft, then that will quickly lose heat. Cold sheets in bed are sure to pull out heat from the hot water bottle much faster than you can imagine.
4.The Space Filled with Air in Hot Water Bottle
One thing that may go wrong with the hot water bottle is overfilling or underfilling it to determine the extent of heat retention. If there is too much inside the hot water bottle then it would not be able to retain the heat, and it becomes cold. On the same note, if it’s overfilled by water, there could be lack of enough space for heat to distribute well within, hence shortcoming the ability of the hot water bottle to keep warm for long.
5.Type of Material Used and the Age of the Hot Water Bottle
This is because with time a hot water bottle will fully decompose particularly if it has been commonly utilized. This is because small openings such as cracks, leaks and aging walls and door cause rapid loss of heat. While some hot water bottles may be newer products, the insulating materials used in the production of the bottles many not be as adequate as those used in the newer ones, therefore they will not be able to hold the heat for very long.


How to Keep Your Hot Water Bottle Warm for Longer
As you now understand some of the causes of rapid heat loss in your hot water bottle, read on to learn of some great interventions that can help you keep the water warmer for longer periods.
1.It gives the maximum of heat when hot water is used.
When it is best to empty and refill your flasks to achieve the best heat retention, fill with hot but not boiling water that is, water temperatures of between 176°F-194°F (80°C-90°C ). This temperature is one that maintains heat without getting to extreme for the material of the hot water bottle. It is worth to mention that hot water can harm the hot water bottle.
2.Place a Cover on the Hot Water Bottle
Among the most effective methods that you can use to increase the heat duration of your hot water bottle is by use of a cover. The covers are made from fleece, wool or some other insulating material to reheat the insulated hot water bottle with as much heat as possible being retained in the bottle and not lost into the air. A good cover also provides an extra cushion which makes it possible to hold or hug the bottle without feeling hot for a long time.
3.Pre-Warm the Bed or Area
If you need to take your hot water bottle to bed try warming the sheets or blankets by placing the hot water bottle under the covers a few minutes before you climb in. You can bring the hot water bottle into the bed to warm the sheets and when you get in the bed the heat will last longer since the bottle is not losing heat to cold bed. This trick is extremely good especially when the room is very cold.
4.Make Sure You Close the Hot Water Bottle Well
Ensure that you close well the hot water bottle door to reduce on heat loss. When you are done with your hot water bottle ensure you fasten the stopper tightly. So if the stopper is loose or if there is air trapped inside, then, the hot water bottle will heat for a shorter time. A small number of bottles have an attached screw-on stopper which generally does a better job of sealing the bottle and keeping it hot than the traditional kind of stopper.
5.Hot Water bottle with better Hot Water Bottle Cover.
If your cover is old or made from fabric that is not very insulating, then it’s advised that you use better insulated packaging. Recently developed hot water bottles come with insulated liners or are better in insulation capability themselves. Or, perhaps, search for such bottles that have an additional layer, as they retain heat longer than regular ones.
6.Learn How to Place the Hot Water Bottle Correctly
If you are using the hot water bottle for healing purposes put it on the portions of your body that receive little circulation such as the stomach or back in order to retain heat for a longer duration. And, if the bottle is placed in the bed, keep it nearby the feet area where it seems to provide warmth longer.
7.Limit Exposure to Cold Drafts
Hot water bottles will cool much faster in cold or in a draughty area. Do not put your hot water bottle near fans, windows, ACs or standing vents that cause the heat to dissipate quickly. Nevertheless, it is recommended to heat it in a small warm room, like a blanket, or to warm hands directly in gloves.
Conclusion
Hot water bottles are not only one of the most commonly used solutions but also help to keep warm during the winter. However, many people are satisfied that they warm their bottles so fast, but at the same time their bottles cool down too fast. The material, water temperature, and other external factors that have an influence on the heat loss can be counteracted using a handful of simple measures. This is something as simple as covering your hot water bottle with an insulating layer, regulating your hot water temperature, and sealing your hot water bottle adequately in a manner that serves to enhance the longevity of the heat considerably. Using these tips, you will be able to have the best of the hot water bottle for many hours.