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Thermal store

Thermal Stores


Mains pressure hot water safely from a vented copper cylinder.

Cylinder and Combination type thermal stores

(Click here for Solar Thermal Store model)

Direct and Indirect Thermal Stores

As their name suggests a thermal store collects and stores thermal energy. Being able to store energy from multiple heat sources (some of which can be uncontrollable by nature) offers a huge advantage over unvented mains pressure cylinders. Once captive, the stored energy can be returned as mains pressure hot water or hot water for central heating. Ideal for wood burning stoves and AGA or Rayburn type range cookers. Now your stove can centrally heat your house.


Available as cylinder or combination unit

A Thermal Store can provide mains pressure hot water by passing incoming mains pressure water directly through a large heat exchanger immersed within the store.

Combination Thermal Stores

This range of stores provide their own attached feed and expansion (F&E) vessel - necessary to ensure the store stays topped up and for the lower (hot) part of the store to breathe into.

The 'cylinder only' version

Require a separate F&E tank (not included) for the same purpose. It often suits the system configuration to choose this option.

A Thermal Store

can be configured to install almost anywhere within a property. Simple to install with no requirement for an unvented certificate and being able to take various heating inputs the Thermal Store offers far greater flexibility than  an unvented cylinder.

Above:

Combination thermal store

Above:

Cylinder type thermal

store with optional

metal jacket

The beauty of a thermal store is its safety

Unlike other methods of providing mains pressure hot water (namely: the unvented cylinder) a thermal store is inherently safe. With no way to build up dangerous pressure explosion is simply not a possibility let alone a risk. So, all the benefits, none of the risks.

Thermal stores can take heat from sources considered too dangerous for unvented cylinders

A massive advantage a thermal store has over an unvented cylinder is the ability to take heat inputs from uncontrollable sources (wood burning stoves, AGAs, etc) safely and simultaneously.

Attempting to feed such energy into an unvented cylinder could result in explosion from an over-pressure/themperature scenario. All a thermal store requires is a heat dump.

All in all a thermal stores offer a fantastic way to harness multiple heat sources, controllable or otherwise, and give back the energy as either domestic hot water and/or household heating.

Because this range of store has no moving parts it is ultra-reliable and won't require an annual service for safety.

Thermal Stores can be supplied as a cylinder type or combination type and configured as an twin coil  indirect cylinder (cold to hot mains pressure coil, and boiler input coil), or as a single coil Direct cylinder (cold to hot mains pressure coil with electrical immersion heaters and/or direct input from heat source/s. Additional features may be added to the cylinder (some at additional cost) as per the table below:

Special Offers on thermal stores

Cylinder Type thermal store

INDIRECT [Dia A] - with boiler coil and one immersion boss.

DIRECT [Dia B] - without boiler coil, fitted two immersion heater bosses. No F&E tank included.

Immersion heaters are sold separately (not included). Please see options table below.

Size

(mm)

Capacity

(litres)

Type

ex VAT

Apr 2013

inc VAT

1400 x 400 D 150 DIRECT store cylinder type (Dia B) 779.80 935.76
1400 x 400 IND 150 INDIRECT Store Cylinder type (Dia A) 805.84 967.01
1100 x 450 D 150 DIRECT store cylinder type (Dia B) 779.80 935.76
1100 x 450 IND 150 INDIRECT Store Cylinder type (Dia A) 805.84 967.01
1500 x 400 D 170 DIRECT Store Cylinder type (Dia B) 805.84 967.01
1500 x 400 IND 170 INDIRECT Store Cylinder type (Dia A) 831.88 998.25
1800 x 400 D 210 DIRECT Store Cylinder type (Dia B) 861.82 1,034.19
1800 x 400 IND 210 INDIRECT Store Cylinder type (Dia A) 887.86 1,065.44
1500 x 450 D 210 DIRECT Store Cylinder type (Dia B) 865.73 1,038.88
1500 x 450 IND 210 INDIRECT Store Cylinder type (Dia A) 891.77 1,070.12
1800 x 450 D 250 DIRECT Store Cylinder type (Dia B) 911.30 1,093.56
1800 x 450 IND 250 INDIRECT Store Cylinder type (Dia A) 937.34 1,124.81
1500 x 500 D 250 DIRECT Store Cylinder type (Dia B) 1,139.15 1,366.98
1500 x 500 IND 250 INDIRECT Store Cylinder type (Dia A) 1,165.19 1,398.23
1800 x 500 D 320 DIRECT Store Cylinder type (Dia B) 1,196.44 1,435.73
1800 x 500 IND 320 INDIRECT Store Cylinder type (Dia A) 1,222.48 1,466.97

Combination Type thermal store

INDIRECT [Dia C]- with boiler coil and one immersion boss

DIRECT [Dia D] - without boiler coil, fitted two immersion heater bosses. F&E compartment attached to top of cylinder.

Immersion heaters are sold separately (not included). Please see options table below.

Size

(mm)

Capacity

(litres)

Type

 

ex VAT

Apr2013

inc VAT

1680 x 400 D 150 DIRECT Combination Store (Dia D) 856.41 1,027.69
1680 x 400 IND 150 INDIRECT Combination Store (Dia C) 882.45 1,058.94
1500 x 450 D 150 DIRECT Combination Store (Dia D) 856.41 1,027.69
1500 x 450 IND 150 INDIRECT Combination Store (Dia C) 882.45 1,058.94
1770 x 400 D 170 DIRECT Combination Store (Dia D) 882.45 1,058.94
1770 x 400 IND 170 INDIRECT Combination Store (Dia C) 908.49 1,090.19
1950 x 400 D 210 DIRECT Combination Store (Dia D) 938.43 1,126.12
1950 x 400 IND 210 INDIRECT Combination Store (Dia C) 964.47 1,157.37
1770 x 450 D 210 DIRECT Combination Store (Dia D) 942.34 1,130.81
1770 x 450 IND 210 INDIRECT Combination Store (Dia C) 968.38 1,162.06
1950 x 450 D 250 DIRECT Combination Store (Dia D) 987.91 1,185.49
1950 x 450 IND 250 INDIRECT Combination Store (Dia C) 1,013.95 1,216.74
1770 x 500 D 250 DIRECT Combination Store (Dia D) 1,215.76 1,458.91
1770 x 500 IND 250 INDIRECT Combination Store (Dia C) 1,241.80 1,490.16
1950 x 500 D 320 DIRECT Combination Store (Dia D) 1,273.05 1,527.66
1950 x 500 IND 320 INDIRECT Combination Store (Dia C) 1,299.09 1,558.91

General Specifications

Standard thermal storage units are supplied with a Thermostatic Mixing Valve (TMV), a 2 litre expansion vessel, a pressure reducing valve and a check valve, which are all fitted to the external pipework.

   

Extras and additions (please add where appropriate to prices above)

inc VAT

Immersion Heater

 

Cylinder boss included with cylinder if required, Immersion heater additional extra

57.60 ea

Insulation

 

Standard foam insulation (approx 50mm) exceeding Part L heat loss

Included

Upgrade insulation to 75mm thickness

68.00

Upgrade insulation to 100mm thickness

132.00

Cylinder connections

 

High recovery boiler coil (improves cylinder reheat time given sufficient input)

45.00

Additional pairs of direct connections (heat in and/or heat out)

18.00

Additional immersion heater boss (to those already included0

18.00

Additional Coils (heat exchangers) for triple coil and multicoil cylinders

 

Heat extract coil (facilitating a sealed/pressurised heating circuit take-off) for either Central Heating or Underfloor Heating 259.00

Additional Boiler Coil

66.00

Additional Solar Coil

144.00

Additional Immersion Heater Boss

18.00

Supplementary cost for manufacture with more than 3 coils

48.00

DHW coil upgrade (for thermal stores incorporating input from heat pump)

144.00

Miscellaneous additional items

 

Drain valve (drain cock)

7.50

Aquastat (used for boiler control / high limit / low limit)

52.50

Temperature dial gauge (for visual cylinder temp indication) 33.00

Float Valve (plastic float)

26.25

Float Valve (Copper float)

45.00

Remote metal header tank for use with cylinder type thermal store (please refer to Metal Header Tank section)  

For other modifications please don't hesitate to ask

 

*Please note: Store dimensions do not include thickness of insulation

(e.g. Standard insulation [included in price] 50mm thick, so add 100mm to stated diameter)

This applies to ALL thermal stores mentioned in this section


Diagram A

These diagrams represent what is going on inside each available model of Thermal Store.
The position of connections shown is for diagrammatic purposes and does not represent actual locations. Connections are designed to be accessible for the purpose of installation.
 

Standard Thermal Store Cylinder Connections

Letter on Diagram Connection type
A Cold mains in
B Mixer hot water out
C Immersion heater
D Drain connection
E Control thermostat connection (indirect only)
F Direct boiler connection (if applicable)
G Output to space heating (direct model - if required)
G Boiler input connections - F&R (indirect model)
H Store fill connection
I Store vent connection

Diagram B

Indirect Model

Direct Model


Diagram C

Combination Thermal Store Cylinder Connections

Letter on Diagram Connection type
A Cold mains in
B Mixer hot water out
C Immersion heater
D Drain connection
E Control thermostat connection (indirect only)
F Direct boiler connection (if applicable)
G Output to space heating (on direct model - if required)
G Boiler connection (on indirect model)

 

Diagram D

Combination Indirect Model

Combination Direct Model


 

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Whatever your requirement, please don't hesitate to call our friendly support team who will be happy to help you with useful advice and assist through the ordering process.

 


Cylinders can be manufactured to your specification

If the cylinder you require is not shown in this section please don't hesitate to call for assistance.

Contact Us

If you have a specific or unusual requirement a cylinder can be manufactured or adapted to your specification. For further information please click here


 

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