For anyone looking to further their knowledge of energy efficient heating and air-conditioning technology, renewable energy & bathroom design, and wanting to visit Frankfurt, Germany next year, consider the ISH Trade Convention on March 15-19, 2011. The ISH concept is based on the "optimum combination of water and energy". This trade conference has taken place for the past 50 years, and brings together over 2,400 manufacturers from all over the world to present new products and forward thinking solutions. For more information, visit the ISH 2011 website.