Warmwell is a rubber hot water bottle that you fill with water. Its water-injection heating method means the bottle is warmed by adding water rather than by a powered heating element.
The bottle weighs 450 grams including packaging. The product information also describes it as suitable for hot and cold use, and identifies the applicable area as the whole body.
Why it works
Water-injection heating requires filling the bottle with water; no electrical power supply is specified.
The listed hot-and-cold feature supports use with either temperature, according to the product information.
Specifications
Material: Rubber
Heating method: Water injection
Weight including packaging: 450 grams
Applicable area: Whole body
Additional feature: Hot and cold
Common questions
How do you use this hot water bottle? Fill it with water; water injection is the stated heating method.
What is the bottle made of? The bottle is made of rubber.
Can it be used for hot and cold applications? Hot and cold use is identified as an additional feature.
