I hung this radiator over the most visited rest area (on chains). The distance from the head is 50-70 cm, depending on the size. You can really feel a nice and remarkable heat output. However, the range of action is relatively sharply limited, similar to a flashlight. But that’s okay for us, 300 watts can really warm up, a thermometer actually goes up to 22°C at an ambient temperature of 16°C. We ordered a second radiator for another location because we are so happy with it.