Specially designed hot water cylinders

• Shower coil units which incorporate a mains fed heat exchange coil to service your shower providing power shower without recourse to expensive pumps.
• Twin coil cylinders for multi heat source applications.
• Horizontal cylinders where height is at a premium (e.g. in the loft space).
• Maxistore units for economy 7 installations.
• "Solar" cylinders for use in solar heating schemes.
• Combination tanks incorporating a separate cold feed tank to service the primary circuit.
• Boat cylinders and specialized units capable of operating effectively under potentially high pressure.
• Mains pressure units are described in a separate section.

Shower coils

More and more households are looking to power showering. Often this is achieved via a pumped system. However, a viable alternative without the need for expensive equipment is available. Shower coils can be fitted to all styles of cylinder and combination tanks, connected directly to the mains and gaining heat quickly from the store of hot water in the cylinder they provide effective and efficient power showering. Particular efficiency is achieved if finned tube is used in the manufacture of the shower coil.

Twin coil cylinders

More than one source of heating? Perhaps a back-boiler or wood-burning stove in addition to the central heating boiler then a twin coil cylinder will enable you to utilise both heat sources to provide hot water.

Horizontal

There are often occasions when space is at a premium and the fitting of an adequately sized traditional vertical cylinder is impracticable. This difficulty can be resolved by the use of a horizontally aligned cylinder available in either direct or indirect form, the horizontal cylinder is particularly useful for restricted loft spaces.

Maxistore

The maxistore unit which seeks to take advantage of the electricity boards economy 7 tariff is available both in direct or indirect form, and in cylinder or combination tank style. Fitted with two side entry immersion heaters and provided with extra foam insulation to reduce heat loss the unit, using cheap rate electricity, creates a store of hot water overnight. Top up during the day is made available via the upper side entry immersion heater Maxistore units are offered in the following preferred sizes.

Alternative energy technology is moving apace now and more and more people are taking advantages in particular of advances in solar energy engineering. Improved solar panel design has led to greater efficiency and cost effectiveness.

Solar cylinders incorporating a high efficiency heat exchange coil, often manufactured in finned tube, provide the means to store the heat energy gained by the solar panels. This solar heat energy can substantially reduce the demands on traditional heat energy sources (e.g. central heating boilers) to provide hot water and room heating.

Special combination tanks

Combination tanks are often used where space is at a premium or for ease of installation, reducing the need for a separate cold water cistern.

Where indirect systems are concerned, however, there is usually still a need for a header tank to feed and vent the primary circuit. This need can be fulfilled by incorporating the header tank with the cold cistern of the combination tank. This is achieved either by inserting a separate smaller tank in the main cold tank (known colloquially as a 'D' tank combination) or splitting the main tank in half (known colloquially as a split tank) In both cases both cold feed tanks have their own cold supply controlled by a ball cock valve.

Boat cylinders

Boat cylinders are available in a wide variety of sizes, both in vertical and horizontal style to meet most eventualities. Supplied either with a single coil or with twin coils where two heat sources are available these cylinders are made of heavy-gauge copper to withstand potentially high operating pressures. Boat cylinders should be fitted with a pressure relief valve.