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Question:

How would you make a heated toliet seat?

Like for a project, you had to make a heated toliet seat how would you do that?

Answer:

I find the padded seats seem to stay a bit closer to room temperature. I never get the cold shock from the padded seat that I get from the regular seat in the guest bathroom.
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Hi To keep life simple I would stick some cotina to the seat rim. This is expanded polystyrene about 2mm thick. It is used to paste under wall paper to keep a room a bit warmer. This will work as it would keep the body heat close to the user. However, there might be a 'cleaning' issue with this.
I got the right answer. It came to me while i was sitting on the .... um....toilet. You don't have to heat the seat at all . All you need to do is heat the toilet and that is so simple it's ridiculous . Change the supply on the toilet from cold to hot water. Warm bowl , warm tank warm seat. AAHHH !!! OK more details: Usually bathroom plumbing is all enclosed in a common wall. You usually have the tub, toilet, sink configuration so in the wall behind the toilet is a hot water line going to the tub/ sink . Tap into it and then use the standard T fitting , water line, shut-off valve , water line configuration. If you don't feel like opening a wall, tap into the hot water supply under the sink.
Two relatively straightforward ways to do it would be either to use heat exchange or an electric warmer. If you had a good saw you might slice the toilet seat the way you slice a bagel, and then use something like a router to cut in grooves to run your heating element. Alternatively, one can just cut grooves in the bottom and seal them over, but one would need to take extra care and sure they don't open up over time or due to any incidental flexing or stressing of the seat. A thicker toilet seat is better to start with since the removal of material will probably weaken the structure substantially. Although a heat exchanger using something like warm water is probably the safer mechanism, but probably more difficult to build and less reliable and more prone to leakage or breakage, because you'd also need a recirculating pump and a heater for the water, plus fittings that won't get undone by themselves despite being attached to a swinging object that gets flipped up and down all the time. If one uses an electrical heater, a low voltage and low wattage heater would be preferable for a variety of reasons, all relating to safety (getting electrocuted while on the pot just isn't a very dignified way to go) and care would be necessary to make sure the connections are robust to water, cleaning and movement a toilet seat would see.

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