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Solar Expansion Vessels

When a liquid's temperature changes in a closed system, like a solar installation, it requires an expansion vessel. However, there are distinct variations between solar systems and central heating systems regarding the placement of the expansion vessel and the required capacity calculation. This is primarily because of the medium used and the way solar systems operate.

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Viessmann Vitosol 100-FM Flat Plate Solar Thermal Collectors Solar Panel

VIESSMANN

Please call to check availability before ordering Live Chat / 01985 850982 VITOSOL 100-FM A high performance flat-plate collector  Featuring an ind...

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Viessmann Vitodens 242-F 19kW to 26kW Combi Boiler Solar Heating Tower DHW Storage

VIESSMANN

Please call to check availability before ordering Live Chat / 01985 850982This storage combined floor standing condensing boiler is designed specif...

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Vitosol 200-FM High-performance Flat Plate Solar Panel

VIESSMANN

Please call to check availability before ordering Live Chat / 01985 850982Vitosol 200-FM with ThermProtect switching absorber layer Vitosol 200-FM ...

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Viessmann EM-S1 solar module extension

VIESSMANN

Please call to check availability before ordering Live Chat / 01985 850982 Solar module extension. PlusBus subscriber EM-S1 solar module extension....

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Solaris PG20 - Solar Fluid Ready-To-Use Propylene Glycol Heat Transfer Fluid

Hydratech

Solaris PG20 has been especially formulated for use Solar Thermal Heating Systems. It is able to operate efficiently at 170°C for prolonged periods...

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Potable Expansion Vessel 35L (Floor Standing)

JOULE

Potable Expansion Vessel 2L to 50L

JOULE

JOULE Cyclone Thermal Store 2.0 with freshwater module - Standard & Solar 250L to 500L Capacity

JOULE

The Joule Cyclone Thermal Store 2.0 is the ideal solution for multi-energy applications. The hot water is produced through the freshwater module mo...

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JOULE Buffer Mild Steel 200L to 3000L with single Solar Coil Standard C Buffer Tank

JOULE
£869.74 Ex-VAT - £7,810.66 Ex-VAT
£869.74 Ex-VAT - £7,810.66 Ex-VAT
£869.74 Ex-VAT
£782.76 Ex-VAT - £7,029.59 Ex-VAT
£782.76 Ex-VAT - £7,029.59 Ex-VAT
£782.76 Ex-VAT

Joule manufactures a large range of stainless & mild steel buffer tanks with different coil configurations. The largest capacity stainless stee...

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JOULE Buffer Mild Steel Twin Solar std C - 800L,1000L,1500L,2000L

JOULE
£2,777.48 Ex-VAT - £5,246.36 Ex-VAT
£2,777.48 Ex-VAT - £5,246.36 Ex-VAT
£2,777.48 Ex-VAT
£2,499.74 Ex-VAT - £4,721.73 Ex-VAT
£2,499.74 Ex-VAT - £4,721.73 Ex-VAT
£2,499.74 Ex-VAT

Joule Mild Steel Buffer Tank  Technical Specifications: • Height - 1105 mm• Diameter - 750 mm• Energy Efficiency Class - C• Max Working Pressure - ...

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JOULE Cyclone Solar Horizontal Standard C

JOULE

The Joule unvented cylinder Horizontal range comes with cradles that are not only included but pre-fitted. These can be easily removed if the Joule...

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Joule Cyclone Twin Coil Solar Cylinder - Standard, Short, Tall C

JOULE
£1,150.47 Ex-VAT - £2,033.51 Ex-VAT
£1,150.47 Ex-VAT - £2,033.51 Ex-VAT
£1,150.47 Ex-VAT
£823.63 Ex-VAT - £1,455.81 Ex-VAT
£823.63 Ex-VAT - £1,455.81 Ex-VAT
£823.63 Ex-VAT

Joule Cyclone range of unvented hot water cylinder is designed to work Joule solar panels or any other system on the market. Joule UK have dedicate...

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Joule Cyclone High Gain Solar Twin Coil - Un-Vented Solar Cylinder

JOULE
£1,634.55 Ex-VAT - £2,680.34 Ex-VAT
£1,634.55 Ex-VAT - £2,680.34 Ex-VAT
£1,634.55 Ex-VAT
£1,170.19 Ex-VAT - £1,918.88 Ex-VAT
£1,170.19 Ex-VAT - £1,918.88 Ex-VAT
£1,170.19 Ex-VAT

The Joule unvented cylinder is specifically designed to be compatible with both air source heat pumps and solar thermal systems. This innovative ho...

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JOULE Cyclone Solar Twin Coil Slimline C - Solar Cylinder

JOULE
£1,065.09 Ex-VAT - £1,193.59 Ex-VAT
£1,065.09 Ex-VAT - £1,193.59 Ex-VAT
£1,065.09 Ex-VAT
£762.50 Ex-VAT - £854.50 Ex-VAT
£762.50 Ex-VAT - £854.50 Ex-VAT
£762.50 Ex-VAT

The Joule cylinders come in a sleek metallic grey outer casing, with a reduction in diameter to fit in tighter floor spaces. A boiler heats it and ...

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Airfix P Dhw Expansion Vessel 10bar

Flamco
£47.54 Ex-VAT - £1,524.91 Ex-VAT
£47.54 Ex-VAT - £1,524.91 Ex-VAT
£47.54 Ex-VAT
£35.66 Ex-VAT - £1,143.68 Ex-VAT
£35.66 Ex-VAT - £1,143.68 Ex-VAT
£35.66 Ex-VAT

Potable water expansion vessels for use in domestic and commercial sealed chilled and hot water systems.Nitrogen gas filling for longer retention o...

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Flamcovent Air Separation Solar Ecoplus

Flamco
£101.94 Ex-VAT - £180.08 Ex-VAT
£101.94 Ex-VAT - £180.08 Ex-VAT
£101.94 Ex-VAT
£76.46 Ex-VAT - £135.06 Ex-VAT
£76.46 Ex-VAT - £135.06 Ex-VAT
£76.46 Ex-VAT

For mounting in solar installations.In solar thermal systems, steam (vapour) may arise due to the high temperatures involved. If a float vent is in...

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27785 - Flexvent Solar Air Vent R 3/8" M Nickel

Flamco
£26.43 Ex-VAT
£26.43 Ex-VAT - £26.43 Ex-VAT
£26.43 Ex-VAT
£19.82 Ex-VAT
£19.82 Ex-VAT - £19.82 Ex-VAT
£19.82 Ex-VAT

Manually operated vent valve for solar systems with glycol based solutions.The water within the installation contains air which can form corrosion ...

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ESBE VTS552 45-65°C to 50-75°C Solar Rated Thermostatic mixing valve

ESBE
£215.00 Ex-VAT - £272.00 Ex-VAT
£215.00 Ex-VAT - £272.00 Ex-VAT
£215.00 Ex-VAT
£138.21 Ex-VAT - £174.86 Ex-VAT
£138.21 Ex-VAT - £174.86 Ex-VAT
£138.21 Ex-VAT

Lead time 10-15 Working days. Direct from ESBE - Call to check availability or alternative models:  Live Chat / 01985 850982 ESBE VTS552 45-65°C G1...

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ESBE VMD322 External thread Solar kit

ESBE
£507.00 Ex-VAT
£507.00 Ex-VAT - £507.00 Ex-VAT
£507.00 Ex-VAT
£325.93 Ex-VAT
£325.93 Ex-VAT - £325.93 Ex-VAT
£325.93 Ex-VAT

Direct from ESBE - Call to check availability or alternative models:  Live Chat / 01985 850982ESBE VMD322 G1+R3/4 42-52°C Optimized energy eff...

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ESBE VMC322 Solar kit External thread & adapters

ESBE
£327.00 Ex-VAT - £402.00 Ex-VAT
£327.00 Ex-VAT - £402.00 Ex-VAT
£327.00 Ex-VAT
£210.21 Ex-VAT - £258.43 Ex-VAT
£210.21 Ex-VAT - £258.43 Ex-VAT
£210.21 Ex-VAT

Direct from ESBE - Call to check availability or alternative models:  Live Chat / 01985 850982ESBE VMC322 G1+R3/4 45°C Optimized energy usage. An...

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Contra-flex 2 to 100 Litre Heating Expansion Vessel - 0.5 Bar, 1.5 Bar

Flamco
£42.68 Ex-VAT - £1,252.89 Ex-VAT
£42.68 Ex-VAT - £1,252.89 Ex-VAT
£42.68 Ex-VAT
£32.01 Ex-VAT - £939.66 Ex-VAT
£32.01 Ex-VAT - £939.66 Ex-VAT
£32.01 Ex-VAT

For sealed heating installations (acc. to EN12828) and chilled water (cooling) installations. Nitrogen gas filling for longer maintenance of pre-p...

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Flexcon P Flat Expansion Vessel 18 to 50 Litre - 1.0 Bar

Flamco
£156.15 Ex-VAT - £278.45 Ex-VAT
£156.15 Ex-VAT - £278.45 Ex-VAT
£156.15 Ex-VAT
£65.21 Ex-VAT - £118.19 Ex-VAT
£65.21 Ex-VAT - £118.19 Ex-VAT
£65.21 Ex-VAT

Disc shaped expansion vessels with reduced height and suspension eye. For use in sealed heating installations (acc. to EN12828) and chilled water (...

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Meitronic Sol Basic Solar controller - Digital Temperature Differential Controller for Thermal Solar Systems

Flamco
£321.24 Ex-VAT
£321.24 Ex-VAT - £321.24 Ex-VAT
£321.24 Ex-VAT
£160.62 Ex-VAT
£160.62 Ex-VAT - £160.62 Ex-VAT
£160.62 Ex-VAT

Digital temperature differential controller for thermal solar systems (1 collector field, 1 tank), full graphic, backlit black/white display, opera...

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Discontinued - Alpha SolarSmart 100 KIT

Alpha Heating Innovation

This product is now discontinued, Contact us for alternative recommendation SolarSmart offers homeowners an easy way to generate free hot water fro...

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