1. Bleed Your Radiators

Over time, air can become trapped inside radiators, preventing them from heating up properly. This makes your system work harder, wasting energy.

How to do it:

• Turn off your heating system.
• Use a radiator key to open the bleed valve slowly.
• Allow the trapped air to escape until water starts to flow.
• Close the valve and turn the heating back on.

Bleeding radiators regularly ensures an even distribution of heat throughout your home.

2. Balance Your Heating System

If some radiators in your home are much hotter than others, your system may be unbalanced. This can make your boiler work harder than necessary.

How to fix it:

• Adjust the valves on each radiator to ensure heat is distributed evenly.
• A heating engineer can perform a full system balance for optimal efficiency.

3. Install a Smart Thermostat

Smart thermostats give you greater control over your heating schedule, allowing you to heat your home only when needed. Many modern thermostats can learn your habits and automatically adjust settings for maximum efficiency.

Benefits include:

• Lower energy bills by avoiding unnecessary heating.
• Remote access to adjust settings via smartphone.
• More precise temperature control.

4. Power Flush Your System

Over time, sludge, rust, and debris can build up in your pipes and radiators, reducing efficiency and potentially causing damage.

What a power flush does:

• Uses a special machine and cleaning chemicals to remove debris.
• Restores full water circulation and heating efficiency.
• Helps prevent boiler breakdowns and cold spots in radiators.

A power flush every 5–10 years can significantly improve heating performance.

5. Upgrade to a High-Efficiency Boiler

Older boilers are often less energy-efficient compared to modern condensing models. Upgrading can make a substantial difference in energy consumption and performance.

Key benefits:

• New boilers can be up to 90%+ efficient.
• Lower energy bills over time.
• Improved reliability and reduced repair costs.

If your boiler is over 10–15 years old, consider a professional assessment for replacement options.

6. Use Thermostatic Radiator Valves (TRVs)

TRVs allow you to control the temperature of individual rooms, preventing unnecessary heating in unused spaces.

Advantages:

• Reduces energy wastage.
• Helps create a comfortable, customised heating environment.
• Works well alongside a smart thermostat for maximum efficiency.

7. Improve Home Insulation

Even the most efficient central heating system will waste energy if your home isn’t well-insulated. Heat loss through walls, roofs, and windows forces your boiler to work harder.

Ways to improve insulation:

• Install loft insulation.
• Upgrade to double or triple-glazed windows.
• Fit draught excluders around doors and windows.
• Insulate pipes to retain water heat for longer.

8. Service Your Boiler Annually

Regular servicing keeps your boiler operating at peak efficiency and can prevent costly breakdowns.

What’s included in a service:

• Cleaning internal components.
• Checking for leaks and corrosion.
• Ensuring safe and efficient combustion.
• Optimising pressure and flow levels.

Annual servicing is essential to maintain both safety and efficiency.

9. Set Your Boiler Pressure Correctly

Low or high boiler pressure can affect heating efficiency. Most boilers should operate between 1–2 bars of pressure.

How to check:

• Look at your boiler’s pressure gauge.
• If it’s outside the recommended range, adjust according to the manufacturer’s instructions or call an engineer.

10. Consider Zoning Your Heating System

Zoning allows you to divide your home into separate heating areas with independent controls. This ensures you only heat rooms you’re using, significantly improving efficiency.

Example: Bedrooms and living areas can be on separate timers, reducing unnecessary heating in unused spaces.

11. Use Your Heating System Wisely

Simple behavioural changes can make a big difference:

• Lower your thermostat by 1–2°C to save energy.
• Use curtains to retain heat at night.
• Keep doors closed to contain warmth in heated rooms.
• Avoid blocking radiators with furniture or curtains.

12. Add Reflective Panels Behind Radiators

Radiator reflectors prevent heat from escaping through external walls, directing it back into the room. They’re inexpensive and easy to install, improving heat distribution without extra energy use.

Final Thoughts

Improving the efficiency of your central heating system doesn’t always mean expensive upgrades. Small, cost-effective changes like bleeding radiators, adding TRVs, or using a smart thermostat can have a significant impact on performance and bills.

For maximum results, consider professional services such as power flushing, system balancing, or upgrading to a modern boiler. At Oakdene Heating, we help homeowners across St Albans optimise their central heating systems for comfort, efficiency, and long-term savings.

Contact us today to schedule a system check or get advice on making your heating more efficient.

What is Underfloor Heating?

Underfloor heating is a system that distributes warmth evenly across your floors, replacing or supplementing traditional radiators. There are two main types of underfloor heating:

• Electric systems: Use electric cables or mats beneath the floor surface.
• Water-based systems: Use a network of pipes that circulate warm water under the floor.

Both types create a consistent, radiant heat that rises evenly through a room, providing a comfortable living environment.

Benefits of Underfloor Heating

1. Even Heat Distribution

Unlike radiators that heat the air in one area of a room, underfloor systems spread warmth evenly across the entire space, eliminating cold spots.

2. Energy Efficiency

Underfloor heating typically runs at lower temperatures than radiators while achieving the same comfort level, reducing energy consumption and potentially lowering heating bills.

3. Space-Saving Design

With no need for radiators, you free up valuable wall space, giving you more flexibility for furniture placement and interior design.

4. Improved Comfort

Walking barefoot on warm floors, especially in colder months, is a luxury many homeowners enjoy. The radiant heat also reduces dust circulation compared to forced air heating systems.

5. Compatibility with Renewable Energy

Water-based underfloor systems pair well with energy-efficient technologies like heat pumps, enhancing sustainability.

Potential Drawbacks of Underfloor Heating

While underfloor heating offers many advantages, it’s important to consider potential downsides:

• Higher Installation Costs: Particularly for water-based systems in existing homes, the initial expense can be significant.
• Longer Heat-Up Times: Unlike radiators that heat up quickly, underfloor heating can take longer to reach desired temperatures.
• Flooring Limitations: Certain floor materials, such as thick carpets, may reduce heat effectiveness.
• Installation Disruption: Retrofitting underfloor heating often requires lifting floors, which can be disruptive and time-consuming.

Cost of Underfloor Heating

The cost varies depending on the system type, property size, and installation complexity:

• Electric systems: Generally cheaper to install, costing between £50-£90 per square metre.
• Water-based systems: Typically cost more, around £70-£150 per square metre, plus additional expenses for pipework and connection to your boiler or heat pump.

Running costs depend on insulation, energy prices, and how the system is used. Well-insulated homes often experience significant energy savings over time.

Is It Cheaper to Run Than Radiators?

In many cases, yes. Underfloor heating operates at lower water temperatures (around 27-50°C) compared to radiators (65-75°C). This efficiency can reduce energy bills, especially when combined with renewable energy sources or modern condensing boilers. However, poorly insulated homes may not experience the same benefits.

Ideal Properties for Underfloor Heating

• New Builds: Easier and more cost-effective to install during construction.
• Homes with Good Insulation: Helps retain the radiant heat and boosts efficiency.
• Open-Plan Spaces: Maximises the benefit of even heat distribution.
• Bathrooms and Kitchens: Popular choices for added comfort underfoot.

Maintenance and Lifespan

Underfloor heating systems require minimal maintenance. Electric systems have very few moving parts, while water-based systems may need occasional servicing of pumps or controls. A well-installed system can last over 25 years, making it a long-term investment.

Underfloor Heating and Property Value

Adding underfloor heating can enhance your property’s appeal, particularly in modern homes or luxury markets. Buyers often see it as a desirable feature that sets your property apart. While it may not directly increase your home’s valuation significantly, it can make your property more attractive and easier to sell.

Environmental Benefits

Because underfloor heating uses lower operating temperatures, it consumes less energy than conventional systems when installed correctly. Combining it with renewable energy solutions like solar thermal panels or heat pumps further reduces your carbon footprint.

Is Underfloor Heating Worth It?

Ultimately, whether underfloor heating is worth the investment depends on your property type, budget, and long-term plans.

• Best suited for: New builds, renovations, or homes with high insulation standards.
• Ideal for comfort seekers: Provides unmatched warmth and a modern, uncluttered aesthetic.
• Long-term efficiency: Can reduce heating costs and maintenance compared to radiators.

However, for smaller budgets or quick, low-cost heating solutions, radiators remain a practical choice.

Final Thoughts

Underfloor heating offers superior comfort, energy efficiency, and a touch of luxury to any home. While the upfront costs can be higher, the long-term benefits often outweigh the investment, particularly in well-insulated properties or new builds.

If you’re considering underfloor heating, it’s essential to consult a qualified heating specialist. At Oakdene Heating, we provide expert advice, design, and installation services to help you make the best decision for your home.

Contact us today to explore your options and discover if underfloor heating is the right choice for you.

Boiler servicing is one of the most important aspects of maintaining a safe, efficient, and reliable heating system in your home or business. Yet, many homeowners have questions about what it involves, how often it should be done, and why it matters. In this comprehensive guide, we answer the most common questions about boiler servicing to help you make informed decisions about your heating system.

1. What is a boiler service?

A boiler service is a thorough inspection, cleaning, and testing of your boiler carried out by a qualified heating engineer. The goal is to ensure that your boiler is operating safely and efficiently. During a service, your engineer will check for leaks, corrosion, and wear and tear, test key components, and verify that the boiler is burning fuel correctly.

2. How often should I service my boiler?

Industry experts and manufacturers recommend servicing your boiler annually. An annual service helps identify issues early, maintains your warranty, and ensures your system runs safely and efficiently. Regular servicing can also prolong your boiler’s lifespan and reduce the risk of unexpected breakdowns.

3. Why is boiler servicing important?

There are several key benefits to regular servicing:

• Safety: Detects potential carbon monoxide leaks and other safety hazards.
• Efficiency: Keeps your boiler running at peak performance, saving money on energy bills.
• Reliability: Reduces the likelihood of unexpected breakdowns during the colder months.
• Warranty Protection: Many manufacturers require yearly servicing to maintain the boiler warranty.

4. What does a boiler service include?

A standard boiler service typically involves:

• Visual inspection of the boiler and surrounding area.
• Checking the main components for wear and tear.
• Cleaning internal parts such as the heat exchanger and burner.
• Testing flue emissions to ensure safe operation.
• Checking water and gas pressure levels.
• Verifying that all safety devices and controls work properly.
• Providing a service report detailing findings and recommendations.

5. How long does a boiler service take?

A typical boiler service takes between 45 minutes to an hour. The duration may vary depending on the type of boiler, its age, and any potential issues that need extra attention.

6. How much does boiler servicing cost in the UK?

On average, a boiler service costs between £60 and £120 in the UK. Prices can vary depending on the type of boiler, your location, and the company you choose. While it may seem like an extra expense, the cost of servicing is small compared to the price of major repairs or boiler replacement.

7. Can I service my boiler myself?

No, boiler servicing should always be carried out by a Gas Safe registered engineer (for gas boilers) or an OFTEC registered engineer (for oil boilers). Attempting to service your boiler yourself is unsafe, may invalidate your warranty, and can lead to serious hazards.

8. What are the signs my boiler needs servicing?

Apart from your annual check-up, you should arrange a service if you notice:

• Strange noises such as banging or whistling.
• A drop in water pressure.
• Leaks or drips around the boiler.
• The pilot light keeps going out.
• Unusual smells when the boiler is running.
• Heating or hot water problems.

These signs may indicate that your boiler isn’t functioning properly and needs attention.

9. Does boiler servicing help prevent breakdowns?

Yes. Regular servicing identifies small issues before they become major problems. Replacing worn parts, cleaning internal components, and checking for leaks can significantly reduce the risk of sudden boiler failure.

10. Will a service improve boiler efficiency?

Absolutely. Over time, boilers can build up soot and debris, which reduces efficiency. A service cleans internal parts, checks combustion settings, and ensures your boiler is using fuel effectively, lowering your energy bills.

11. How do I know if my engineer is qualified?

Always check that your engineer is registered with the appropriate governing body:

• Gas boilers: Gas Safe Register.
• Oil boilers: OFTEC (Oil Firing Technical Association).

You can ask to see their ID card before they begin work for your peace of mind.

12. Does a boiler service affect my insurance or warranty?

Yes. Many home insurance policies and boiler warranties require annual servicing to remain valid. Failing to service your boiler could mean losing coverage for repairs or replacements.

13. When is the best time of year to service a boiler?

The ideal time is during the summer months when you rely on your boiler less. This ensures your heating system is ready for peak winter demand and avoids long waits for an engineer during busy periods.

14. Can an old boiler still be serviced?

Yes, as long as parts are available, most older boilers can still be serviced. However, if your boiler is over 15 years old, you may want to consider replacing it with a modern, more efficient model.

15. What happens if I skip a boiler service?

Skipping a service may save money short-term but can lead to:

• Increased risk of breakdowns.
• Reduced efficiency and higher bills.
• Potential safety hazards such as carbon monoxide leaks.
• Invalidated warranties or insurance policies.

Final Thoughts

Boiler servicing is a small investment that ensures your heating system runs safely, efficiently, and reliably all year round. Whether your boiler is brand new or several years old, annual servicing is essential for long-term performance.

If you’re due for a service or have noticed problems with your heating system, don’t wait until winter strikes. Book a professional boiler service with Oakdene Heating today and keep your home warm, safe, and worry-free.

When it comes to choosing a new boiler for your home, the decision between a combi boiler and a system boiler is one of the most important you’ll make. Both have their strengths and are suitable for different types of properties and household needs. In this post, we’ll explore the key differences, pros and cons, and help you determine which is best for your home.

What is a Combi Boiler?

A combination (combi) boiler is a compact, single-unit boiler that provides both heating and hot water on demand. It does not require a separate water tank or cylinder, making it an ideal choice for smaller homes or properties where space is limited.

Key Features:

• Heats water directly from the mains
• No need for a hot water cylinder or cold water storage tank
• Provides hot water instantly when you turn on the tap

Pros of a Combi Boiler:

• Space-saving design
• Typically more energy-efficient for smaller homes
• Lower installation costs
• Hot water on demand with no waiting

Cons of a Combi Boiler:

• Limited capacity for multiple taps or showers running simultaneously
• May struggle to meet high hot water demands
• Not ideal for large households with multiple bathrooms

What is a System Boiler?

A system boiler also heats your central heating and provides hot water for storage in a separate hot water cylinder. It doesn’t need a cold water tank, as it takes water directly from the mains, but it does require space for the hot water cylinder.

Key Features:

• Requires a separate hot water cylinder
• No need for a cold water tank in the loft
• Suitable for homes with high hot water demand

Pros of a System Boiler:

• Can supply hot water to multiple taps at once
• Ideal for larger households or homes with multiple bathrooms
• Provides strong, consistent water pressure

Cons of a System Boiler:

• Requires space for a hot water cylinder
• Hot water isn’t instant; it needs to be stored in advance
• Slightly higher installation and maintenance costs

Which Boiler is Best for You?

Choosing between a combi and a system boiler depends on a few important factors:

1. Property Size

• Combi: Ideal for flats, apartments, and small to medium-sized homes.
• System: Better suited for medium to large homes with more than one bathroom.

2. Hot Water Demand

• Combi: Best for homes with low to moderate hot water usage.
• System: More suitable if you have high water usage or multiple people needing hot water at the same time.

3. Space Availability

• Combi: Perfect where storage space is limited.
• System: Requires additional space for a hot water cylinder, which may not be suitable for smaller properties.

4. Water Pressure

• Both types are fed from the mains, but system boilers often maintain stronger pressure when multiple taps are used.

5. Installation & Maintenance Costs

• Combi boilers usually have lower installation costs due to fewer components.
• System boilers, while potentially more expensive to install, can be more cost-effective in larger households due to their efficiency with higher water usage.

Efficiency and Running Costs

Both combi and system boilers can be highly efficient, especially modern A-rated models. Combi boilers tend to be more efficient for homes with lower demand because they only heat the water you use. However, if your household uses a lot of hot water, a system boiler may avoid the cost of constantly heating water on demand.

Final Verdict: Combi vs System

There’s no one-size-fits-all answer, but here’s a quick summary to help you decide:

Ultimately, the best boiler for your property will depend on your lifestyle, property size, and hot water usage.

If you’re still unsure, it’s always a good idea to consult a qualified heating engineer who can assess your home and provide personalised advice.

Need Help Choosing the Right Boiler?

At Oakdene Heating, we specialise in helping homeowners across St Albans choose and install the right boiler system. Whether you’re upgrading an old unit or fitting out a new property, our expert team is here to help.

Get in touch today for honest advice, competitive pricing, and professional installation services you can trus