At the Heart of any good heating system.

       Un-vented Cylinders

A requirement for higher pressure, superior flow rates? Enjoy a "power" shower? Need to feed several outlets, wash basins or showers for instance, and still maintain pressure?

Simple to install with no requirement for a cold water feed tank and supplied direct from the mains water, the unvented unit offers far greater flexibility than the traditional vented unit.

Requiring only access to a cold water mains supply and a facility to discharge safely to the outside, the unvented unit can be located almost anywhere within the dwelling or business premises.

 
       Solar Thermal store Cylinders

Available both in cylinder and combination style, the Solar Thermal Store unit provides hot water via a thermal mixing valve at high pressure supplied direct from the mains water supply. Requiring only access to a cold water mains supply and a facility to overflow to the outside (direct from the combination units and from a header tank for cylinder units), the Solar Thermal Store can be located almost anywhere within the dwelling or business premises. Simple to install with no requirement for an unvented certificate and being able to take various heating inputs the Solar Thermal Store offers far greater flexibility than the vented or unvented units.

Below you can see an example of our Solar Thermal Store, which is so-called because it can use various heat inputs to heat the stored water. In addition to having the components required for solar heating, the Solar Thermal Store has a number of direct tappings (O and P on the diagram below) which can be used for heating the stored water by various other means, such as, wood burners, pellet/ biomass boilers, range cookers, or other gravity circulating applications. These direct tappings can also be used to take heat from the stored water for the purpose of heating the premises via open vented radiator circuits, heat dump or under floor heating circuits. The same can be done indirectly by fitting the Solar Thermal Store with a high efficiency coil, allowing the radiators and/ or under floor heating circuits to be installed as sealed systems. However if the customer requires a bespoke Solar Thermal Store to be manufactured to their specification with extra connection ports or ports omitted, we can offer such a unit.

 

       Heat pump Cylinders

Most people own a heat pump and don't even realise it - your refrigerator is in fact a type of heat pump. Heat is extracted from the inside of the fridge to keep food fresh and is expelled through the radiator grill at the back of the unit. But when used in the opposite way, heat pumps extract heat from an outside source, and rather than the heat becoming a waste product, it is conveyed to a point of use within the premises. In this case, the point of use would be a hot water storage cylinder.

The heat energy that has been produced by the heat pump is transferred to the water in the cylinder via a high efficiency finned, copper coil - the same way a common gas or oil boiler would heat your hot water. However, the heat pump coils in the Heat Pump cylinders have a far larger heating surface than the traditional domestic boiler coils that are offered in copper or stainless steel cylinders. This allows the coil to dissipate as much heat as the heat pump can possibly produce, preventing the heat pump from cycling.

Since the average temperature range that most heat pumps can achieve, is approximately 45 - 55°C it would be necessary to have at least one other form of heat input to the cylinder as a backup, for example, immersion heater, gas/ oil boiler or any other heat application, which is capable of raising the temperature of the stored water to around 60 - 65°C, although some heat pumps can achieve this temperature on their own. The heat pump application can also be combined with solar heating to achieve a very environmentally friendly and highly efficient method of heating your hot water

       Horizontal cylinders

Insufficient headroom for a standard vertical cylinder? - Then a horizontal cylinder may well be the answer. Particularly useful in confined loft spaces these cylinders are configured horizontally and are available either as direct or indirect, which can be supplied with support cradles.

Supplied with high efficiency factory applied insulation these units provide a highly effective and efficient means of providing and storing hot water where headroom is at a premium.

The cylinders are available in three grades - 1, 2, & 3 - with grade 3 generally being selected for normal domestic use. Grades 1 & 2 are made from heavier material and are most often used where improved durability is required.

       Thermal Store Cylinders

Available both in cylinder and combination style, the thermal store unit provides hot water via a mixing valve at high pressure supplied direct from the mains water supply. Requiring only access to a cold water mains supply and a facility to overflow to the outside (direct from the combination units and from a header tank for cylinder units), the thermal store unit can be located almost anywhere within the dwelling or business premise. Simple to install with no requirement for an unvented certificate, the thermal store unit offers far greater flexibility than the traditional vented unit.

       Indirect cylinders

Indirectcylinders are designed to work in conjunction with central heating systems. Heat is transferred from the boiler to the water contained in the cylinder via a heating coil.

Manufactured in accordance with the new British Standard, BS 1566-1 : 2002, these cylinders comply with the new Part L Building Regulations and combine a high performance heating coil with low heat loss factory applied insulation to provide a highly efficient and effective way to provide and store domestic hot water.

For those who require even faster heat transfer times these cylinders can be supplied with even larger heating coils. Designated as Quick Recovery, these units not only improve on heat-up times but also reduce boiler fire-up times to maximise its efficiency.

The cylinders are available in three grades - 1, 2, & 3 - with grade 3 generally being selected for normal domestic use. Grades 1 & 2 are made from heavier material and are most often used where there is a greater working head of water or where improved durability is required.

       Direct Cylinders

Direct cylinders were originally designed to be used in conjunction with solid fuel appliances and copper back boilers. Today these units more commonly use electric immersion heaters as their heat source often taking the benefit of the Electricity Companies' lower rate Economy 7 tariffs.

Still available however for the replacement market these cylinders can be specified with boiler connections either as high flow or low flow and are manufactured in accordance with the new British Standard, BS 1566-1: 2002. They also comply with the new Part L Building Regulations.

       Maxistore Cylinders

Economy 7 (Maxistore) cylinders and combination tanks are designed to take advantage of the various electricity companies' cheap rate, night-time tariffs. During night time hours the water contained in the cylinder is fully heated using this cheap rate electricity as its power source. The boost immersion heater situated near the top of the cylinder meets any additional demand during daytime hours.

Manufactured to the relevant British Standard specification and meeting the demands of Part L of the Building Regulations both cylinders and combination units are supplied with two immersion connections, two cold feeds with dispersion baffles, and extra thick factory applied insulation giving improved performance on heat loss.

Standard Economy 7 Sizes

Cylinder Type
Size	Direct capacity	Indirect capacity
900 x 450	120 Ltr	117 Ltr
1050 x 450	144 Ltr	140 Ltr
1500 x 450	210 Ltr	206 Ltr

 

Combination Cylinder Type
Size	Direct capacity	Indirect capacity
1050 x 450	120 Ltr	117 Ltr
1400 x 450	144 Ltr	140 Ltr
1800 x 450	210 Ltr	206 Ltr

Where space is at a premium specially sized units are often required to meet achieved desired hot water volumes. To accommodate these requirements we are able to supply cylinders in alternative heights to those specified in the British Standard and to alternative diameters, including 375mm (15") and a range above 600mm (24"). Advice is available, of course, to determine the optimum size of cylinder to meet a customer's particular needs.

Direct cylinders to the British Standard are available in a combination of specified heights from 675mm to 1800mm and specified diameters as listed below:

Diameter - metric	Diameter - imperial
300mm	12"
350mm	14"
375mm	15"
400mm	16"
450mm	18"
500mm	20"
600mm	24"