Abstract: A solar heater comprises one or more portable panels for collecting heat from the sun and providing it to a space to be heated. The panels include collector plates within a double glazed frame. The collector plate is formed of black corrugated steel, and heats up quickly in the sun. A blower blows air into an input manifold and across the collector plate, perpendicular to the corrugations, and the heated air exits via an output manifold. A sensor controls when the blower operates.