Underfloor Heating Maintenance

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Whether you’re considering installing floor heating as part of an upcoming renovation project or already enjoying the cosy benefits of an underfloor heating system in your home, understanding the maintenance requirements is crucial. Many homeowners often ask, “What maintenance is required for an underfloor heating system?

Do underfloor heating systems need to be serviced?

Once installed, underfloor heating systems are pretty low maintenance, but it’s a good idea to check on them every now and then. Unlike traditional central heating systems, underfloor heating does not require frequent servicing. When installed and operated correctly, they provide simple to operate and hassle free heat within your home.

For water systems the underfloor heating manifold serves as the central component of your heating system, connecting the heating pipes and regulating temperature and pressure throughout the system. From the manifold, you can conveniently assess how the system is operating, where it’s possible to verify that the system pressure remains within the recommended range, and monitor the water flow rates using the flow gauges.

Although these systems are built to last, like anything, occasional problems may surface that require attention. Keeping on top of your system with a few relatively simple checks, could help avoid any issues before they arise, which is exactly why we put this handy checklist together.

Water Underfloor Heating Maintenance checklist

Regular Cleaning: Keep the surface of your underfloor heating system clean from any debris, dust, or obstructions. This includes removing any objects that may block the airflow or hinder heat distribution.

Check the manifold for Leaks: Periodically inspect your underfloor heating system for any signs of leaks. Any Wunda system and most other suppliers will use a continuous loop of pipe and the only place where a leak could occur is at the manifold, check here periodically for leaks. If you notice any leaks, it’s important to address them promptly to prevent further damage.

Monitor Thermostat and Controls: Ensure that your thermostat and control settings are functioning correctly and if your underfloor system isn’t responding to a wireless thermostat we would recommend checking the batteries, replacing them when needed

Flushing and Balancing: Over time, sediment or debris may accumulate in the pipes, affecting the system’s efficiency. Consider flushing the system and using a suitable cleaning agent to remove any build-up. Additionally, ensure proper balancing of the flow rates between different zones to maintain even heating throughout your space.
To maintain your underfloor heating system’s performance, add an inhibitor to prevent bacteria and sludge growth. This reduces the need for flushing for up to four years. A professional can check the inhibitor levels by draining a small amount of the fluid from your system, following the same process as with radiators. Additionally, use a magnetic filter like MagnaClean on your boiler’s flow pipe to remove ferrous metals. Remember, these practices are essential for both radiator and underfloor heating systems, ensuring optimal performance and longevity.

Check Manifold and Valves: Inspect the manifold and valves for any signs of wear, corrosion, or leaks. Tighten any loose fittings and replace damaged components if necessary.

Monitor System Performance: Pay attention to any changes in the system’s performance, such as uneven heating or reduced heat output. These could indicate underlying issues that require professional attention.

The benefits of ensuring the system is operating properly are clear, with proper use and regular checks underfloor heating will be running as efficiently as possible. You will also keep on top of most issues before they happen, keeping costs down and giving you peace of mind that your home will be warm, when it needs to be, for years to come.

What to do when it’s switched off after summer? Or to bring it back on?

When you’re ready to turn your system back on after a warm summer there are a couple of steps you will want to take. Firstly, run the water and then check the balance of the manifold. If there is a 5-10 degree drop between flow and return then the system is in balance, if the difference on any is more or less than that, then the pipe loops will need rebalancing.

Balance is achieved by adjusting the flow meters to ensure that the flow rates supplying each zone are at an optimum level, and in turn provide an even and comfortable warmth across the whole floor. Consider that flow rates will need to be adjusted to suit the length of pipe in each loop as specified in the pipe layout designs and installation manual.
How long do water underfloor heating systems last?

Of course, the lifespan of underfloor heating varies depending on the type of system, electric underfloor heating systems can last about 25 years, provided that the flooring remains intact. Water-based systems are designed to last even longer, with an estimated lifespan of 50 + years. Compare that to a radiator system, which typically have a lifespan of around 10-15 years before they will need to be changed, and other smaller parts for the system may need replacing more often than that,

If you’re interested in a system that is efficient, built to last, and has a favourable warranty on the major parts then the Wunda Rapid Response system could be exactly what you’re looking for. We have a dedicated team that are available to answer any questions about any of our products, 6 Days a Week.

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