Power is easy. Only sockets allowed in bathrooms are low voltage shaver sockets with isolating transformer.
For storage heaters, these seats, and heated towel rails in your bathroom you connect to a fixed, fused, double pole switch, spur outlet. Something like this: https://www.screwfix.com/p/mk-13a-dp-switched-fused-connecti...
Power is easy. Only sockets allowed in bathrooms are low voltage shaver sockets with isolating transformer.
For storage heaters, these seats, and heated towel rails in your bathroom you connect to a fixed, fused, double pole switch, spur outlet. Something like this: https://www.screwfix.com/p/mk-13a-dp-switched-fused-connecti...