This simplified graphic features five minimalist blue icons on a soft gray background, each representing a common radiant heating system problem. From left to right, the icons illustrate uneven heat distribution, strange noises, rising energy bills, pressure gauge fluctuations, and visible water leaks. Designed for blog content, this image helps visually communicate the most common signs of trouble in a radiant heating system, making it easy for readers to quickly identify when maintenance or professional help may be needed.