Highly recommend these heaters. We installed a number in our restaurant space which is located in an old building with high ceilings. The heaters are very effective, and we’re really pleased with how easy they are to control, especially when we set different areas on different temperatures. Heating a large space such as ours is never going to be cheap, but I am very satisfied that these heaters are providing one of the best economical solutions. Great service from Herschel too, won’t hesitate to use again.