Solar Water Heating System
CxC compression insert
Price range: £4.10 through £4.54 Select options This product has multiple variants. The options may be chosen on the product page
DZR CxC couplings
Price range: £8.22 through £8.46 Select options This product has multiple variants. The options may be chosen on the product page
DZR CxC elbows
Price range: £6.16 through £7.50 Select options This product has multiple variants. The options may be chosen on the product page
Flexible solar tube connections
Price range: £11.94 through £12.18 Select options This product has multiple variants. The options may be chosen on the product page
Male copper solar connectors
Price range: £6.78 through £10.80 Select options This product has multiple variants. The options may be chosen on the product page
Solar Hot Water Repair & Replacement Components UK
Solar PV Systems supplies a broad range of products for the repair, maintenance and replacement of existing solar hot water systems.
Our range includes solar controllers, pump stations, solar heating fluid, compression fittings, tube fittings and connectors, pressure and safety components, sensor cables, pipework components and solar hot water spare parts.
Whether you are replacing a failed component, carrying out routine maintenance or upgrading an older solar thermal system, our range provides compatible components for a wide variety of existing solar hot water installations.
For customers looking for individual repair and maintenance parts, browse our wider range of solar heating components.
Solar Thermal Repair & Replacement Parts
Our Solar Hot Water range includes the components commonly required to service, repair and maintain existing solar thermal systems.
Solar Hot Water Controllers
Solar controllers monitor temperatures within the system and control the circulation of solar heating fluid between the collectors and hot water cylinder.
We supply solar thermal controllers and associated control components for system maintenance and replacement.
Solar Pump Stations
Pump stations provide the circulation required to move solar heating fluid around the closed solar thermal circuit.
A replacement pump station may be required when an existing circulation unit becomes worn, fails or needs upgrading.
Solar Heating Fluid
Solar thermal systems use specialist heat transfer fluid to transfer heat from the collectors to the hot water cylinder while providing protection against freezing and corrosion.
We supply solar heating fluid for system servicing, replacement and maintenance.
Solar Compression Fittings
Solar thermal pipework requires reliable, high-temperature connections capable of operating under the pressures and temperatures found within a closed solar heating circuit.
Browse our range of solar compression fittings for connecting, maintaining and repairing solar thermal pipework.
Our range includes DZR couplings, DZR elbows, DZR tees, solar male iron compression fittings and solar female iron compression fittings.
We also supply DN flat washer to compression adaptors for high-temperature solar pipework connections in relevant sizes.
Solar Tube Fittings & Connectors
We supply specialist fittings and connection components used with solar thermal tube connections using DN12 and DN16 flexible pipework.
Browse our solar tube fittings for components used when replacing connections, repairing pipework or carrying out maintenance on existing systems.
DN12 solar connectors → DN12 solar connectors
DN16 solar connectors → DN16 solar connectors
Expansion Vessels
Expansion vessels accommodate changes in fluid volume as the solar heating circuit heats and cools.
A correctly sized and functioning expansion vessel is an important part of maintaining the pressure within a sealed solar thermal system.
Pressure Relief Valves & Safety Components
Solar thermal systems operate at elevated temperatures and pressures, making suitable safety components essential.
Our range includes pressure relief valves and other components used to maintain and service solar heating systems.
Additional maintenance and replacement products can be found within our solar heating accessories range.
Air Vents & System Components
Air vents and associated components help maintain correct operation of the solar thermal circuit by allowing trapped air to be removed from the system where required.
Solar Hot Water Spares
We also supply a range of solar hot water spare parts for customers maintaining existing installations.
These can include replacement:
Maintaining an Existing Solar Thermal System
Regular maintenance can help identify worn or damaged components before they cause a larger system problem.
Solar thermal systems contain several interconnected components, including pump stations, controllers, pipework, expansion vessels, valves and heat transfer fluid.
Replacement components may therefore be required when:
- A circulation pump fails
- A controller develops a fault
- Solar fluid requires replacement
- Pipework connections begin to leak
- An expansion vessel requires replacement
- A pressure relief valve needs replacing
- Fittings or connectors become damaged
- An older component needs upgrading
For a broader explanation of how solar thermal systems and their main components work together, read our Solar Hot Water Systems guide.
Finding the Correct Solar Hot Water Component
When replacing a component, it is important to identify the existing system and check the relevant specifications before purchasing.
Useful information can include:
- Existing component type
- Connection size
- Pipe diameter
- System pressure
- Operating temperature
- Manufacturer or model
- Existing controller or pump specification
- Type of solar heating system
If you are unsure which component you require, provide us with the relevant system or component details and we can help identify a suitable product.
Solar PV Systems is a supply-only business and does not provide installation services.