For electric to succeed, it is vital that every watt of input finishes up as useful hot water and heating. The new range of E-Tech S Tank-in-Tank thermal storage units is designed to do just that. The E-Tech S benefits from the clever integration of the stainless steel Tank-in-Tank technology with an equally advanced electric boiler control system. Cupro incoloy elements within the primary water provide the electrical energy.
An inner stainless steel hot water storage tank drawsheat from primary water circulating through an outertank which is heated by heavy duty elements. Asthey're immersed in primary water only, the heatingelements are unlikely to be affected by scaling andinput to them is modulated by a dual stage thermostatto reduce cycling and load switching. The specialdesign of the inner DHW tank not only helps ensurescale-free operation, but also avoids the sedimentproblems that plague conventional cylinders. To fullyutilise generated energy the Tank-in-Tank unit iswrapped in a generous 70mm of polyurethaneinsulation.