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How would this work? Magic?

calculate how much energy is required to heat up the amount of water in a bathtub by a few degrees…

Lol. I get the idea, but like Quintin said, the feasibility is questionable.

I have no doubt that this will be possible someday. A job well done.
@Quintin: It really bothers me how people cry witchcraft just because this isn’t possible right this minute. Think bigger dude.

Sure, waste electricity instead of water… so eco-conscious

@ Jimmy C: Just a quick calculation, then:

Take a bathtub of ±150 litters. It will take 4.19kJ to heat 1 litter of water by one degree C. So: 628kJ to heat up all the water in the bathtub by 1 degree C.

Now consider the amount of power in a single AA battery of 3400mAh (highest capacity I could find): Just over 18kJ.

With no losses, it would take it would take all the energy i n34 of the highest capacity AA batteries to heat up the water in the bathtub by 1 degree C.

You’d need a very much more efficient type of battery to even consider something like this.

And even then… These devices seem to have only one function, keeping the bathtub warm. Why not incorporate something like this in the bottom of the tub? Then you could even have it powered from the grid AND it would be invisible!

Also, would you be willing to sit in a tub with something containing so much electrical energy?

yes, a simple bathtub cover would do a better job preserving heat energy. yes, it’s better to let the bathtub do the job then throwing an electric rock into the tub. still, this does throw an idea, obviously what they were trying.

Please can you let me know how I could become an agent for the WARM ON product.

I live in South Africa, Johannesburg. My husband is a plumber here, and I already have an existing market to sell to.

Please can you let me know who I should contact.

Thanks Roxanne

Where can I get warm on??

Ever hear of phase change materials? This wouldn’t involve any electricity to heat…. the stones would capture heat while internally melting, and then release heat while freezing, essentially initially cooling the bath down to a tolerable temperature, and then maintaining that temperature for a period of time before the stone freezes internally.

I Love it

Where can I get it??

Where can I get one????

Where can these be purchased?

I would really like to purchase a set of these “rocks” I am unable to find the link on the site to acquire them, can you help, please.

Thanks

Absolutely! Being a select few who get to enjoy dual cultures, Americans will be hard to win over. However, in Japan, these would rock (no pun intended)! In America I miss my Japanese soaking tub, these would totally help with the loss of heat How soon can I order mine?

These would be great for the older generation. My grandma recently had to put in a walk in tub ( she is 90 and uses a walker). We all thought she would love being able to get in and out of the tub easily without having to lift her legs over the barrier. Her one complaint about it is that she has to sit and wait to drain all the water before she can open the door to get out, and it gets really chilly. The water loses heat while you bathe, and then you have to wait five minutes to drain the water but can’t get out while it does that to dry off. I think these would be great! Let me know when you make them!

I love the design and function of this product! How can I purchase this item for myself?

When we had a jacuzzi put in our bathroom we payed the extra money to have heating coils installed in the sides of the tub. The water temp is digitally set and so the coils match the water temp to keep it nice and hot. If you really love baths and have the space and money, this is the way to go.

It’s definitely not witchcraft.
It’s just bloody dangerous.