In 1981, I passed my journeyman examination as a 'central heating and ventilation engineer'.
That's where I received training in autogenous welding and bending pipes while they were in a red-hot state. At that time, heating systems made of steel pipes were still common. By the way, it was not a mistake; such steel systems have been in operation for 80 years...
All pipelines should always run parallel, with changes in direction at right angles. The radiators were installed with a slight slope towards the venting, everything was done to provide a proper job for the customer.
I always saw these standardized radiators as an intrusion into the aesthetics of a home, and I wonder why people don't question them.
A radiator is much larger and more dominant compared to other standardized technical fittings in a home, such as a light switch or an electrical outlet. Why is there a lack of consideration for design possibilities in this case?
In the case of 'towel radiators' in particular, there is enormous room for creative design, especially in bathrooms. Here are two examples: