The Essential Guide to Heating System Maintenance

Your home’s heating system works hard to keep you warm during those cold winter months, and like any major appliance, it needs regular maintenance to keep it running efficiently. While many homeowners might think their heating system doesn’t need attention unless something goes wrong, a bit of heating system maintenance can go a long way in preventing breakdowns and keeping your system operating at peak performance.

In this guide, we’ll cover some essential maintenance tasks you can do yourself, as well as when to call in a professional heating engineer. Whether you’re checking your radiators, adjusting the pressure, or inspecting your boiler, regular upkeep will keep your home cosy and save you from costly repairs down the line.

1. Check Your System’s Pressure

Keeping an eye on your system’s pressure is one of the simplest but most important parts of heating maintenance. Low pressure can prevent your radiators from heating properly, and too much pressure can cause leaks or damage to the system.

How to Check and Adjust the Pressure

First, locate the pressure gauge on your boiler. Ideally, it should be between 1 and 1.5 bar when the system is cold. If the pressure is too low, you can top it up by opening the filling loop on your boiler until the pressure rises to the correct level.

If you’ve recently bled your radiators (more on that below), the system pressure may have dropped, and you’ll need to top it up again. Make sure the system is off before you start adjusting the pressure. If you’re unsure about adjusting the pressure yourself, feel free to call a heating system installer to help.

2. Bleed Your Radiators

If your radiators aren’t heating up properly, or if you hear gurgling noises coming from them, it might be time to bleed them. Bleeding radiators releases any trapped air that can block the flow of hot water, ensuring your system heats your home efficiently.

How to Bleed Your Radiators

Turn off your heating system before you start and make sure you lay down some towels or protection for your floors. Use a radiator key to slowly turn the valve at the top of the radiator. You’ll hear a hissing sound as the air escapes, and once water starts to drip, close the valve. Don’t forget to check your system pressure after bleeding the radiators, topping it up if necessary.

If you have a sealed system, make sure to re-pressurise the system once all your radiators are bled. If this sounds like more than you’re comfortable handling, a heating engineer from Wells Spa Plumbing & Heating can take care of it for you.

3. Inspect Your Radiators, Valves, and Pipework for Leaks

It’s a good habit to visually inspect your radiators, valves, and pipework for any signs of leaks and could be carried out when you are dusting or doing your routine house cleaning. Leaks can cause significant damage over time, not to mention affect the efficiency of your heating system.

What to Look For

Check for any damp patches around the radiators or pipework, as well as any unusual noises coming from the system. Even small leaks should be addressed quickly to prevent bigger issues later. If you spot a leak and aren’t comfortable fixing it, a professional heating system installer can help repair or replace the faulty parts.

4. Check Your Boiler for Warning Signs

Your boiler is the heart of your heating system, so it’s important to give it a once-over from time to time. Regularly inspecting your boiler can help you spot potential problems before they turn into extensive repairs.

Visual Inspections

Look for any visible signs of leaks around the boiler or unusual noises. You should also check the display panel for any error or warning codes. If you notice anything out of the ordinary, it’s a good idea to contact a heating engineer to inspect and service the boiler. Don’t attempt to repair it yourself, as boiler repairs should only ever be carried out by certified and fully insured professionals.

5. Ensure All Radiators Are Heating Evenly

Another key part of heating system maintenance is making sure all your radiators are heating up as they should. If some are hot and others are cold, your system may not be balanced correctly.

How to Check

Turn your heating on and wait for the radiators to heat up. Then, go around and check each radiator to make sure it’s getting hot all over. If any are cooler at the top, they may need bleeding. If some remain cold while others are hot (and they aren’t turned off or down at the thermostat), your system might need balancing, which is something a professional heating engineer can help with.

6. Check Your Thermostat and Heating Controls

This one might sound obvious, but it’s surprising how many people get caught out by it. If your thermostat is battery-powered, make sure the batteries are working and replace them if needed. It’s also a good idea to check the heating controls and timers to ensure they’re set correctly for your needs.

Adjusting Settings

Review the time and temperature settings on your thermostat to make sure they match your routine. This helps ensure that your heating system isn’t running when you don’t need it, saving energy and reducing wear and tear on your system. If your thermostat is hard-wired, it may be worth upgrading to a more efficient programmable model or even a smart thermostat, which allows you to control your heating remotely.

7. Annual Boiler Service

Last but certainly not least, don’t skip your annual boiler service. Having your boiler professionally serviced each year is crucial for keeping it running efficiently and spotting any potential issues early. It’s also a requirement for maintaining the warranty on many boilers.

Why You Should Book an Annual Service

During a service, a heating engineer will check and clean all the critical components of your boiler, ensure it’s operating safely, and carry out necessary tests. This helps extend the life of your boiler and ensures you don’t end up with unexpected breakdowns in the middle of winter.

At Wells Spa Plumbing & Heating, we offer comprehensive annual servicing as part of our heating system maintenance services. If you’re not comfortable carrying out some of these tasks yourself, or you want peace of mind, we’re here to help.