TerraHeat Pad is a next generation root zone heater that delivers both efficiency and modularity. Based on amorphous metal technology this product is constructed of plastic coated amorphous metal foil that is durable and waterproof. Placed underneath the growing matter TerraHeat can increase the matter temperature up to 10° above hemisphere temperature, providing optimal growing conditions from the root up. Suitable for outdoor, indoor, greenhouses in soil,growing tables, raised beds etc.