Customers were asked to submit pictures of the top of their hot water cylinders if they thought it would complicate the fitting of a heat storage device. Here are the pictures and my comments.

Essex, Warrik and Surrey Flanges are fitted to the top of hot water cylinders because they are needed for traditional shower boosters. Without these special fittings traditional Power Showers draw in air – ShowerPowerBoosters do not. These are not required if you replace your traditional power shower with a ShowerPowerBooster solution.

As well as adding adding cost and complexity they prevent a heat storage device being fitted because they have internal tubes. Use SPBs and they have no advantage over a simple 22mm x 22mm equal tee. Air will easily rise to the top of the tank and the air will be vented in a conventional hot water system without a ‘special’ fitting if you embrace SPBs.

During the trails I replaced these not so special fittings with no adverse effect.

In order to fit a heat storage device you will need to remove the not so special fitting and replace it with a 3/4 to 22mm coupling, a short length of 22mm pipe, and a 22mm x 22mm equal tee, a short length of 22mm pipe, and a WrightChoice Heat Storage Device.

For maximum efficiency a horizontal pipe immediately from the top of a hot water cylinder is best however we often have to accept that in order to avoid a major re-plumbing job we simply adapt to what we have. With a a 3/4 to 22mm coupling, and a short length of 22mm pipe, we can fit the WrightChoice Heat Storage Device above the hot water cylinder . Another short length of 22mm pipe and a straight coupling and its job done.