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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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Zilmet Volumiser Vessels / Intermediate Vessels 5 Litre to 50 Litre

Intatec
£113.23 Ex-VAT - £411.68 Ex-VAT
£113.23 Ex-VAT - £411.68 Ex-VAT
£113.23 Ex-VAT
£42.23 Ex-VAT - £144.24 Ex-VAT
£42.23 Ex-VAT - £144.24 Ex-VAT
£42.23 Ex-VAT

Max Pressure: 10 Bar Operating Temperature: -10°C to 110°C Provides a bypass route to maintain the minimum flow rate through the heat pump Promote...

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Solar manual filling pump

Flamco
£89.85 Ex-VAT
£89.85 Ex-VAT - £89.85 Ex-VAT
£89.85 Ex-VAT
£54.42 Ex-VAT
£54.42 Ex-VAT - £54.42 Ex-VAT
£54.42 Ex-VAT

Piston pump for manual filling and refilling or increasing the pressure of the solar system, 1 m filling hose, pressure build-up max. 6 bar.

PAW SolarBloc midi Basic DN20 twin line Solar Pump Groups Wilo Para ST 15-130 - With & Without controller

PAW
£352.80 Ex-VAT - £642.00 Ex-VAT
£352.80 Ex-VAT - £642.00 Ex-VAT
£352.80 Ex-VAT - £642.00 Ex-VAT
£352.80 Ex-VAT

Please call to check availability before ordering Live Chat / 01985 850982 The PAW SolarBloc midi Basic DN20 twin line Wilo PARA ST 15/7 ( without ...

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Viessmann Vitovolt 300 M400 WK all black format 400W to 440W monocrystalline Solar PV

VIESSMANN

Contact us to get quote: Live Chat / 01985 850982 The Viessmann Vitovolt 300 Soalr panel series offers sleek, high-performance monocrystalline sola...

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Flamco Flexfast 3/4 Isolating Union for Expansion Vessel

Flamco
£18.40 Ex-VAT
£18.40 Ex-VAT - £18.40 Ex-VAT
£18.40 Ex-VAT
£13.26 Ex-VAT
£13.26 Ex-VAT - £13.26 Ex-VAT
£13.26 Ex-VAT

For mounting Flexcon expansion vessels (2 - 25 litres) to a wall.With the Flexconsole the Flexcon vessel is set up vertically fitted to the water c...

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Viessmann Solar Divicon replacement compression nut, olive & sleeve

VIESSMANN
£42.00 Ex-VAT
£42.00 Ex-VAT - £42.00 Ex-VAT
£42.00 Ex-VAT
£21.25 Ex-VAT
£21.25 Ex-VAT - £21.25 Ex-VAT
£21.25 Ex-VAT

Please call to check availability before ordering Live Chat / 01985 850982Viessmann Solar Divicon replacement compression nut, olive & sleeve A...

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Viessmann Solar Divicon replacement pressure gauge

VIESSMANN
£27.00 Ex-VAT
£27.00 Ex-VAT - £27.00 Ex-VAT
£27.00 Ex-VAT
£13.66 Ex-VAT
£13.66 Ex-VAT - £13.66 Ex-VAT
£13.66 Ex-VAT

Please call to check availability before ordering Live Chat / 01985 850982Viessmann Solar Divicon replacement pressure gauge

Viessmann Solar flexi pipe (twin) (with connection set) 12m

VIESSMANN
£1,052.00 Ex-VAT
£1,052.00 Ex-VAT - £1,052.00 Ex-VAT
£1,052.00 Ex-VAT
£532.26 Ex-VAT
£532.26 Ex-VAT - £532.26 Ex-VAT
£532.26 Ex-VAT

Please call to check availability before ordering Live Chat / 01985 850982Viessmann Solar flexi pipe (twin) (with connection set) 12m

Viessmann EM-S1 solar module extension - wall mounted

VIESSMANN
£594.00 Ex-VAT
£594.00 Ex-VAT - £594.00 Ex-VAT
£594.00 Ex-VAT
£286.88 Ex-VAT
£286.88 Ex-VAT - £286.88 Ex-VAT
£286.88 Ex-VAT

EM-S1 solar module extension - wall mounted

Sunamp 0.51 Expansion Vessel

SUNAMP
£44.89 Ex-VAT - £44.89 Ex-VAT
£44.89 Ex-VAT
£44.89 Ex-VAT - £44.89 Ex-VAT
£44.89 Ex-VAT

500ml expansion vessel This Sunamp 0.51 Expansion Vessel offers a reliable solution for the expansion of the water in your heat exchange system, of...

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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
£1,214.07 Ex-VAT - £1,990.84 Ex-VAT
£1,214.07 Ex-VAT - £1,990.84 Ex-VAT
£1,214.07 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 Platinum 300 Litre Twin Coil Solar Unvented Hot Water Cylinder

JOULE
£904.00 Ex-VAT - £904.00 Ex-VAT
£904.00 Ex-VAT
£904.00 Ex-VAT - £904.00 Ex-VAT
£904.00 Ex-VAT

The Joule Cyclone Platinum 300 litre twin coil solar unvented hot water cylinder is designed for high-demand domestic hot water systems and solar t...

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Flamco Airfix P DHW (Potable) Expansion Vessel 12L [10bar]

Flamco
£0.00 Ex-VAT - £0.00 Ex-VAT
£0.00 Ex-VAT
£50.00 Ex-VAT
£50.00 Ex-VAT - £50.00 Ex-VAT
£50.00 Ex-VAT

FREE DELIVERY Potable water expansion vessels for use in domestic and commercial sealed chilled and hot water systems. Nitrogen gas filling for lon...

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Mixergy Solar X Slimline Direct PVE Cylinder 120L - 210L

Mixergy
£1,692.19 Ex-VAT - £1,765.65 Ex-VAT
£1,692.19 Ex-VAT - £1,765.65 Ex-VAT
£1,692.19 Ex-VAT - £1,765.65 Ex-VAT
£1,692.19 Ex-VAT

With the Mixergy Solar X, you can make the most of solar power consumption without needing a traditional battery. It can save up to 40% on the hous...

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Mixergy Solar X Slimline Indirect PVE Cylinder 120L - 210L

Mixergy
£1,793.44 Ex-VAT - £1,904.91 Ex-VAT
£1,793.44 Ex-VAT - £1,904.91 Ex-VAT
£1,793.44 Ex-VAT - £1,904.91 Ex-VAT
£1,793.44 Ex-VAT

With the Mixergy Solar X, you can make the most of solar power consumption without needing a traditional battery. It can save up to 40% on the hous...

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Mixergy Solar X Indirect PVE Cylinder 120L - 500L

Mixergy
£1,763.97 Ex-VAT - £2,792.81 Ex-VAT
£1,763.97 Ex-VAT - £2,792.81 Ex-VAT
£1,763.97 Ex-VAT - £2,792.81 Ex-VAT
£1,763.97 Ex-VAT

With the Mixergy Solar X, you can make the most of solar power consumption without needing a traditional battery. It can save up to 40% on the hous...

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INTA ZILMET CAL - PRO8 LITRE HEATING EXPANSION VESSEL & MOUNTING BRACKET Z1-301008

Intatec
£62.84 Ex-VAT
£62.84 Ex-VAT - £62.84 Ex-VAT
£62.84 Ex-VAT
£40.38 Ex-VAT
£40.38 Ex-VAT - £40.38 Ex-VAT
£40.38 Ex-VAT

Inta Zilmet Cal-Pro 8 Litre Heating Expansion Vessel & Mounting Bracket 

Inta Zilmet Cal-Pro 4 Litre Heating Expansion Vessel & Mounting Bracket Z1-301004

Intatec
£61.66 Ex-VAT
£61.66 Ex-VAT - £61.66 Ex-VAT
£61.66 Ex-VAT
£39.62 Ex-VAT
£39.62 Ex-VAT - £39.62 Ex-VAT
£39.62 Ex-VAT

Inta Zilmet Cal-Pro 4 Litre Heating Expansion Vessel & Mounting Bracket   

Airfix P - 2lt Potable Expansion Vessel 10bar

Flamco
£47.54 Ex-VAT
£47.54 Ex-VAT - £47.54 Ex-VAT
£47.54 Ex-VAT
£34.94 Ex-VAT
£34.94 Ex-VAT - £34.94 Ex-VAT
£34.94 Ex-VAT

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

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Solar PVT Panel Inclined Flat Roof / Ground Mount - Mounting Frame for Abora aH72SK

Abora

Mounting Frame only doesn't include the panels, Must be purchased together with Abora aH72SK solar panels. Contact us for a quote :  Live Chat / 01...

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Solar PVT Panel Pitched Roof Mounting Frame for Abora aH72SK

Abora

Mounting Frame only doesn't include the panels, Must be purchased together with Abora aH72SK solar panels. Contact us for a quote :  Live Chat / 01...

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Joule Solar Pump Group Station Dual ERP 5m with Deaerator (Grundfos Upm3 Hybrid 25-70)

JOULE
£496.73 Ex-VAT
£496.73 Ex-VAT - £496.73 Ex-VAT
£496.73 Ex-VAT
£392.56 Ex-VAT
£392.56 Ex-VAT - £392.56 Ex-VAT
£392.56 Ex-VAT

S2 Solar 3 Twin Line Solar Pump Unit With Deaerator Grundfos Upm3 Hybrid 25-70 Circulating Pumps The unit with 1” (180 mm) solar circulating pum...

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Joule Cyclone High Gain & Solar Twin Slimline Cylinder

JOULE

The Cyclone unvented cylinders are designed with a sleek grey outer casing and a narrower diameter, making them ideal for compact spaces. The Joule...

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Joule Cyclone Air Pre-plumbed with Inbuilt Expansion vessel - Direct and Indirect Unvented Cylinder

JOULE

The Cyclone Air brand is known for its top-notch hot water cylinder development, with a precision-engineered, unvented range that ensures consisten...

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