Hi Dusty Hydronic towel rails can be a great alternative to traditional panels in a bathroom. There is a huge range of design and budget options on the market. The main difference between a traditional panel and a hydronic towel rail is the way it projects the heat into the room. A traditional panel is mostly convection (around 20% radiant heat) so the heat is released through the top of the panel up to the ceiling then forced back down the heat the room. A hydronic towel rail will be purely radiant as it doesn't have the vents on top. With regards to to heating up the room is always best to oversized with a towel rail mainly because depending what finish you go with the coatings may affect the heat output and also as soon as you start putting towels on them your blocking the heat, you will end up with nice warm dry towels but not necessarily a warm bathroom. I hope you found this useful :)

But what is similar to YOUR Juliet balcony and gate, as you have not given us a picture of yours, we cannot look at those and offer suggestions.

i have curved curtain rails that were custom made for me by Spotlight

Do you have to have a continuous staircase hand rail??