Every K&H de-icer is safe in all ponds, unlike many of the other de-icers available in the market today. Every one of K&H's de-icers can be used as a floating de-icer out of the box or in seconds converts to a submersible de-icer with the click of a button! In the past, all that was readily available were energy gulping 1000 watt to 1500 watt de-icers; pond owners had no choice but to purchase these expensive to run de-icers, even when they didn’t need it.