Ideal Solar Fluid 10 Litre 174872

The Ideal 174872 is a 10 litre container of solar fluid, the heat transfer medium circulated through the collector loop of an Ideal solar thermal system. It sits within the Ideal solar range, which covers the Solar Pack collector kits and the Solar Thermstore cylinders. Its job is to carry heat from the roof-mounted collectors down to the cylinder store while protecting the loop against frost and internal corrosion.

• Solar yield falls away on bright days with no obvious fault at the collector or pump.
• The fluid drawn off at a drain point looks dark, cloudy or heavily discoloured compared with new fluid.
• The system needs repeated top-ups, suggesting the loop has been drained or partially lost its charge.
• Frost protection has weakened after several seasons, leaving the collector loop vulnerable in winter.
• Sludge or sediment is found in the loop when the system is flushed.

• Check your appliance against the compatibility list to confirm the solar pack or Thermstore model.
• Confirm the part number 174872 against the existing container or the system documentation before ordering.
• Note the alternative number 1780532, which may appear on older paperwork for the same item.
• Work out the loop volume of the installation so the correct number of 10 litre containers is ordered for a full refill.