Yes, you can usually leave bathroom towel rails on. This is especially true for electric or hydronic towel rails made for constant use. Here are a few points to consider:
1. Comfort and Convenience: Leaving the towel rail on ensures your towels stay warm and dry, reducing the chance of dampness and mold buildup.
2. Energy Efficiency: Manufacturers design modern electric towel rails to be energy-efficient. Some come with timers or thermostats. These features help control when they are heated. This makes them good for continuous use without using too much energy.
3. Safety: Most towel rails are safe to leave on. However check that your model is rated for continuous use, especially if it is electric.
If you are worried about energy use, consider models with timers or smart thermostats. These let you set heating cycles and turn them off when they are not needed.