One of the factors holding me back from getting ducklings is I'm worried about burning the place down if a heat lamp were to get knocked over into brodder bedding. Is the heat lamp the only reasonable priced way to go? (other than an mama duck!) Our cat started out as an outdoor-only cat and we have a house for him with a special outdoor-use-approved, animal-friendly heat pad. Wondering if there's any duck brooder equivalent. Though I imagine it would need to be very waterproof.