The Good Heats rooms up to 1500 sq. ft. Easy to install and use No electrical wiring needed Compatible with most AC or DC fans Includes mounting temple and bracket Efficient The Bad Works best when the sun is out No way of storing the heat Detailed Review The Your Solar Home SolarSheat 1500GS Passive Solar Air Collector was found to be a simple, inexpensive solution to supplement home heating costs. One thing to note is that this product is not a solar panel. Instead is a solar air collector... (more...)