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Our Tanks

Durable pressure vessels

Our storage cylinders are built to last

Envirosun TS tanks are fabricated from high-strength materials especially suited to operating in high-temperature, high-pressure applications which can otherwise be very corrosive. And for added life our TS Plus tanks exclusively incorporate 444 stainless steel internal pressure vessels. To learn about our 444 stainless steel tanks, read: our stainless steel.

Our hot water tanks stay hotter for longer

Envirosun cylinders are encapsulated in a pressure-injected, high-density polyurethane thermal insulation. Compared with archaic insulation systems using straw, wool or fibreglass, polyurethane retains more heat and does so for far longer – and it has the added advantage of imparting structural rigidity to the assembled vessel. To find out how polyurethane is used to create a superior thermal barrier, read: our insulation.

our insulation

Our storage cylinders deliver hot water faster

Our storage cylinders deliver hot water faster Our solar hot water systems are rated to operate high water pressures that are near to that of the mains water supply. Unlike low pressure hot-water systems, you can enjoy plenty of hot-water from more than one outlet at the same time. To understand how our system of pressure control valves works to limit but maintain hot-water system pressure, read: our pressure valves.

Envirosun systems use this mix of optimisation and over-temperature protection functions to maximise energy savings and minimise heat stresses.