I have a small 36h x 24l x 19w (inches) that I want to put in the unheated garage to start a few seeds. I have the lights setup, but not sure the best (and cheapest) way to provide heat.
Its obviously not a large area to heat and I only need to warm the inside about 10-15 more degrees. I'm thinking a heat lamp bulb in one of those plug in plant lamps would do the trick. I'm extremely hesitant about an electric heater in such a small space, any ideas?