The IHeat Hot Spot AHSH Tankless Shower Head Water Heater is a Patented Designed tankless electric shower head heater which has been developed with the up most quality and safety standards being tested and found to comply with NSF372 Lead free provisions. This electric tankless shower head heater is small yet powerful enough to be used as a portable shower where you may need to heat water. Designed with a completely water proof enclosure the Hot Spot has the ability to be used in the shower, outdoors, and even on your hunting or camping trips. The advanced technology allows you to choose up to 5 power settings. The Hot Spot is a powerful mini tankless water heater, but it does have its limitations, this heater should only be used with inlet water temperatures above 70F. The Stainless Steel heat ex-changer allows for several years of uninterrupted use of the hot spot.