The EcoLet™ Full Automatic 55ai is designed for 3 people full-time, or 4 people part-time. It is a fully automatic mixing, temperature and fan controlled system, using 240v power.
The EcoLet™ Full Automatic 65ai is designed for 4 people full-time, or 6 people part-time. It is a fully automatic mixing, temperature and fan controlled system, using 240v power.