Mini-E thermostatic tankless water heaters from Stiebel Eltron are an electronically controlled version of mechanical Mini water heaters. The electronic control board and automatic flow control allow the units to deliver water at a factory preset temperature of 100 degrees F. Custom preset output temps are also available. They’ll maintain temperature, even with pressure fluctuations in the water supply, which is ideal for installations where output temperatures are limited by code. Unlike mechanical units that only service a single sink, the unit can be plumbed to supply warm water to multiple sinks in warm climates. 800/582-8423; www.stiebel-eltron-USA.com.