Q&A for How to Make a Heating Pad

Another method for making a heating pad is soaking a kitchen towel in hot water, than putting it in a Ziplock bag. It works the same.

You don't need to throw it away, as it is reusable. But it is a good idea to replace it every year or so, or more often if used with high frequency.

On average, these last about 20 minutes.

Yes.

No, the noodles will burn and smell awful. Rice doesn't burn like noodles do.

You can, but you will need to reheat it more often as it will not stay warm for long.

Usually it does last quite a while, but not as long as a store-bought heating pad.

You could, though fabric is recommended; just be sure the yarn you're using is cotton, since it can withstand higher temperatures.

Yes, but they will be wet. The benefit of a rice bag is that it's dry. If you want to use hot towels you can put them in a Ziploc bag, but some people don't like the way it feels.

You can add lavender to mask the smell, or use a hot water bottle instead.

Wheat or beans might work, but you may have just heated it for too long. You can always replace the rice in the preexisting bag.

Making a homemade heating pad that is electric can be a safety hazard if not done correctly. The easiest and safest option would be to buy one, which will mostly likely cost the same, yet last longer.

You can use an empty plastic water bottle and fill it up with hot water, but you will have to keep dumping the water out and refilling it because it doesn't last long.

No, the noodles will burn and smell bad. Avoid using noodles. Rice or oatmeal works the best, in my experience.

Rubber does not sound like a good idea for heating, as it has a lower specific heat capacity and will probably melt when you warm it over flames.

Yes, you can. However, make sure that you cool towels down a little before putting them into bag, as a plastic bag will melt at high temperatures.

he most common fix to heating pads is cleaning out the control unit on the cord. Unplug the heating pad, then use a screwdriver to open up the control unit. If parts are loose, tighten them. Otherwise, you may need to invest in a new heating pad.