Lochinvar announces the addition of Thermal-Stor, a new storage tank line designed to complement Lochinvar commercial heat pumps. The storage tank’s patent-pending baffle design reduces water velocity in the tank, keeping water hot by providing maximum stratification. The new line includes models HP250G, HP500G, HP750G and HP1000G. These units promote the benefits of stratification even more when installed in a bank to support heat pump operation by pulling water from the tanks in series, rather than all the tanks at once in a parallel arrangement.