Just submerge it in water and it turns into “hot water”! A water-heating heater you’ll want to keep for disaster preparedness

What a thing this was! The shocking “Wakashitaro.” Beyond everyday bathing, it’s a reassuring unit for disaster preparedness too.

The Problem of Winter Bathtubs Getting Lukewarm

Source: Kumagai Electric.

The days are getting shorter, and as night falls, the cold starts to bite. The time spent soaking in a warm bath after coming home from work feels like a reward that melts away the day’s fatigue.

However, when there are many people in the family, bath times inevitably get staggered. You bathe the kids first, and by the time it’s your turn, the tub may have gone completely lukewarm. In a bathtub without a reheating function, all you can do is add hot water and make do.

That’s where Kumagai Electric’s “Wakashitaro” comes in handy. Just submerge it in the tub, and this multi-purpose heater can warm water from cold or keep it at temperature. Because it requires no installation work, it’s easy to introduce even in homes without a reheating function. It’s the kind of unit families with staggered bath times should definitely check out.

Source: Kumagai Electric.

Just submerge it to keep your preferred temperature

Source: Kumagai Electric.

The mechanism is simple: place the cylindrical main unit at the bottom of the container and set the temperature with the control box. The temperature can be adjusted within a range of 30–45°C. Whether you prefer lukewarm water or a hotter bath, you can set it to your liking.

Its heating performance is also powerful: with 10L of water, it can raise the temperature by about 10°C in around 10 minutes. It supports up to 300L of water. However, since warming a full bathtub takes several hours, it’s best used with plenty of time to spare. As for electricity costs, keeping 250L of water warm for 24 hours costs about 96 yen as a guideline. Being able to keep the water warm for that amount is nice.

Also great for backyard pools and disaster preparedness! Equipped with five safety devices

Source: Kumagai Electric.

What makes “Wakashitaro” convenient is that it can be used for more than just bathing. For example, summer backyard fun. A small pool filled with tap water would be too cold, but if you preheat the water, it seems like you could create a more comfortable environment for children to play. And if you have access to power, it can also come in handy for preparing hot water for daily use during disasters.

For safety, it’s equipped with five safety devices, including a water-level sensor, temperature sensor, and earth-leakage breaker. The heater has a stainless-steel safety cover to prevent direct contact.

However, when bathing or entering the pool, be sure to turn off the power and remove the main unit. The control box is not waterproof, so it must be installed in a place where it won’t be exposed to water or steam.

Warm baths, no matter who goes last

Source: Kumagai Electric.

Even if the family’s schedules are different, the desire to take a warm bath is the same. If you have a heater that can rewarm the water, even the last person to bathe should be able to enjoy a comfortable bath time.

When not in use, it can be stored upright on the included stand while draining. From winter baths to summer pools, and even for emergency preparedness, it seems like a unit that can be useful all year round.

Product name / SUNART Multi-purpose Heating & Keeping-Warm Heater “Wakashitaro” SCH-901
Price / 37,950 yen
Size / Main unit: φ65×392 mm, Control box: 59×31×127 mm (excluding protrusions), Storage stand: 86×355×94 mm
Weight / Main unit approx. 720 g, Storage stand approx. 250 g, Control box approx. 120 g
Rated power consumption / 915W
Temperature adjustment range / 30–45°C
Applicable water volume / 300L (varies depending on usage environment)
Cord length / Power cord 2.5 m, Control cord 3 m
Accessories / Storage stand

●Kumagai Electric

Search Wakashitaro on Amazon