There is no one-size-fits-all answer to this question, as the best boiler for underfloor heating in the UK will vary depending on your individual needs and circumstances. However, some of the most popular boilers for underfloor heating in the UK include:

  • Condensing boilers: Condensing boilers are the most efficient type of boiler available, and they are well-suited for underfloor heating. They work by recovering heat from the flue gases, which can increase efficiency by up to 20%.
  • Gas boilers: Gas boilers are a popular option for underfloor heating, as they are relatively affordable and efficient. However, they can produce harmful emissions, so they may not be the best option for people who are concerned about the environment.
  • Air source heat pumps: Air source heat pumps are a renewable energy source that can be used for underfloor heating. They are more expensive than gas or oil boilers, but they can save you money on your energy bills in the long run.
  • Ground source heat pumps: Ground source heat pumps are another renewable energy source that can be used for underfloor heating. They are more expensive than air source heat pumps, but they are even more efficient.
  • When choosing a boiler for underfloor heating, it is important to consider the following factors:
  • The size of your home or commercial space: The larger your home or commercial space, the larger the boiler you will need.
  • The climate in your area: If you live in a cold climate, you will need a larger boiler.
  • The efficiency of the boiler: The more efficient the boiler, the lower your energy bills will be.
  • The cost of the boiler: Boilers can range in price from a few thousand pounds to tens of thousands of pounds. It is important to choose a boiler that fits your budget.
  • The warranty on the boiler: Boilers should come with a warranty to protect you against defects in materials and workmanship. It is important to choose a boiler with a long warranty.
  • It is also important to consult with a qualified HVAC contractor to get their recommendations. They can assess your needs and recommend the best boiler for your home or commercial space.

What is underfloor heating?

Underfloor heating (UFH) is a system that uses pipes to circulate hot water or glycol (a liquid antifreeze) under the floor of a building to heat it. It is a popular choice for both new builds and renovations, as it can provide a comfortable and energy-efficient way to heat your home.

There are two main types of underfloor heating: wet and dry. Wet underfloor heating uses pipes filled with hot water, while dry underfloor heating uses mats or cables that are heated electrically. Wet underfloor heating is generally more efficient than dry underfloor heating, but it is also more expensive to install.

UFH can be used to heat both the floors and the air in a building. When used to heat the floors, UFH can provide a comfortable and even heat that is not as drying as traditional radiators. UFH can also be used to heat the air in a building, but this is less common.

There are a number of advantages to using underfloor heating in the UK. These include:

  • Energy efficiency: UFH is a very efficient way to heat a building, as it heats the floors directly, rather than the air. This can save you money on your energy bills.
  • Comfort: UFH provides a comfortable and even heat that is not as drying as traditional radiators. This can be especially beneficial for people with allergies or asthma.
  • Quiet: UFH is a quiet heating system, which can be important if you live in a noisy area or if you have young children or babies.
  • Aesthetic: UFH can be hidden under the floor, which can save space and improve the aesthetics of your home.

There are also a few disadvantages to using underfloor heating in the UK. These include:

  • Cost: UFH is more expensive to install than traditional radiators.
  • Time: UFH can take longer to install than traditional radiators.
  • Disruption: UFH installation can be disruptive, as it requires access to the floors.
  • Maintenance: UFH requires regular maintenance to ensure that it is working properly.

Overall, underfloor heating is a good option for heating your home in the UK. It is energy efficient, comfortable, and quiet. However, it is important to consider the cost and time involved in installation before making a decision.

Can you run underfloor heating off a boiler?

Yes, you can run underfloor heating off a boiler. In fact, a boiler is the most common way to power underfloor heating systems.

There are two main types of underfloor heating systems that can be powered by a boiler: wet underfloor heating and dry underfloor heating.

Wet underfloor heating uses pipes filled with hot water to heat the floor. The boiler heats the water and then pumps it through the pipes under the floor. The hot water heats the floor, which in turn heats the air in the room.

Dry underfloor heating uses electric mats or cables to heat the floor. The boiler powers the mats or cables, which then heat up and transfer heat to the floor. The heated floor warms the air in the room.

Which type of underfloor heating system you choose will depend on your budget, the size of your home, and your personal preferences. Wet underfloor heating is generally more efficient than dry underfloor heating, but it is also more expensive to install. Dry underfloor heating is less expensive to install, but it is not as efficient as wet underfloor heating.

If you are considering installing underfloor heating in your home, it is important to consult with a qualified installer to determine the best type of system for your needs. They can assess your budget, the size of your home, and your personal preferences and recommend the best system for you.

Here are some additional things to keep in mind when running underfloor heating off a boiler:

  • The boiler must be powerful enough to heat the water or electricity to the required temperature.
  • The boiler must be able to maintain a steady temperature, as underfloor heating systems are sensitive to fluctuations in temperature.
  • The boiler must be compatible with the type of underfloor heating system you choose.

With proper installation and maintenance, underfloor heating can be a comfortable and energy-efficient way to heat your home.

What is the best boiler for underfloor heating?

The best boiler for underfloor heating will depend on your individual needs and circumstances. However, some of the most popular boilers for underfloor heating include:

Condensing boilers: Condensing boilers are more efficient than traditional boilers, as they recover heat from the flue gases. This can save you money on your energy bills.

Combination boilers: Combination boilers provide both heating and hot water. This can be a convenient option if you do not have a separate hot water tank.

System boilers: System boilers are larger than combi boilers and can provide heat to multiple zones in your home. This can be a good option if you have a large home or if you want to heat different rooms at different temperatures.

When choosing a boiler for underfloor heating, it is important to consider the following factors:

  • The size of your home: The larger your home, the larger the boiler you will need.
  • The type of underfloor heating you have: Wet underfloor heating requires a more powerful boiler than dry underfloor heating.
  • The climate in your area: If you live in a cold climate, you will need a more powerful boiler than if you live in a warm climate.
  • Your budget: Boilers can range in price from a few thousand dollars to tens of thousands of dollars. It is important to choose a boiler that fits your budget.

It is also important to consult with a qualified HVAC contractor to get their recommendations. They can assess your needs and recommend the best boiler for your home.

Can you have underfloor heating with a combi boiler?


Yes, you can have underfloor heating with a combi boiler. In fact, combi boilers are one of the most popular types of boilers used for underfloor heating.

Combi boilers are a type of boiler that heats water on demand. This means that they only heat water when you need it, which can save energy and money. Combi boilers are also relatively small and compact, which makes them ideal for homes with underfloor heating.

However, it is important to note that not all combi boilers are suitable for underfloor heating. Some combi boilers have a lower output than others, which may not be sufficient to heat your home with underfloor heating. It is important to consult with a qualified installer to determine if your combi boiler is suitable for underfloor heating.

If you are considering installing underfloor heating with a combi boiler, there are a few things you need to keep in mind:

  • The size of your home: The size of your home will determine the size of the combi boiler you need. If you have a large home, you will need a larger combi boiler.
  • The insulation in your home: The insulation in your home will affect how efficiently your underfloor heating system works. If your home is well-insulated, you will need a smaller combi boiler.
  • The type of underfloor heating you want: There are two main types of underfloor heating: wet and dry. Wet underfloor heating is more efficient than dry underfloor heating, but it is also more expensive to install.

If you are unsure if underfloor heating is right for you, it is best to consult with a qualified installer. They can assess your needs and recommend the best system for your home.

Can you have underfloor heating with a gas boiler?


Yes, you can have underfloor heating with a gas boiler. In fact, gas boilers are one of the most common types of boilers used to power underfloor heating systems.

Gas boilers are well-suited for underfloor heating because they can provide a high flow rate of hot water, which is required for underfloor heating systems. Gas boilers are also relatively efficient, which can save you money on your energy bills.

When using a gas boiler for underfloor heating, it is important to choose a boiler that is large enough to meet the heating needs of your home. You should also make sure that the boiler is compatible with the type of underfloor heating system that you are installing.

Here are some of the benefits of using a gas boiler for underfloor heating:

  • Efficiency: Gas boilers are relatively efficient, which can save you money on your energy bills.
  • Cost: Gas boilers are typically less expensive than other types of boilers, such as heat pumps.
  • Availability: Gas boilers are widely available, so you should be able to find one that is compatible with your underfloor heating system.
  • Maintenance: Gas boilers are relatively easy to maintain, which can save you money in the long run.

Here are some of the drawbacks of using a gas boiler for underfloor heating:

  • Pollution: Gas boilers produce emissions that contribute to air pollution.
  • Safety: Gas boilers can be a fire hazard if not properly maintained.
  • Noise: Gas boilers can be noisy, which can be a problem if you live in a noisy area.
  • Carbon monoxide poisoning: Gas boilers can produce carbon monoxide, which is a poisonous gas.

Overall, gas boilers are a good option for underfloor heating systems. They are efficient, cost-effective, and widely available. However, it is important to be aware of the potential drawbacks of gas boilers, such as pollution, safety, noise, and carbon monoxide poisoning

Can you have underfloor heating with a system boiler?

Yes, you can have underfloor heating with a system boiler. In fact, system boilers are one of the most common types of boilers used with underfloor heating. System boilers are designed to provide hot water to both radiators and underfloor heating systems. They are typically more efficient than traditional boilers, which makes them a good choice for underfloor heating.

When choosing a system boiler for underfloor heating, it is important to consider the size of your home and the amount of heat that you need. You will also need to make sure that the boiler is compatible with your underfloor heating system.

Here are some things to consider when choosing a system boiler for underfloor heating:

  • Size: The size of the boiler will depend on the size of your home and the amount of heat that you need. A larger boiler will be able to heat a larger home, while a smaller boiler will be sufficient for a smaller home.
  • Efficiency: System boilers are typically more efficient than traditional boilers. This is important for underfloor heating, as it is a more efficient way to heat a home.
  • Compatibility: Make sure that the boiler is compatible with your underfloor heating system. Some boilers are not compatible with certain types of underfloor heating systems.

Once you have chosen a system boiler, you will need to have it installed by a qualified professional. Underfloor heating installation can be complex, so it is important to have it done by someone who knows what they are doing.

With proper installation and maintenance, a system boiler can provide years of reliable service for your underfloor heating system.

Can you have underfloor heating with a condenser boiler?

Yes, you can have underfloor heating with a condenser boiler. In fact, condenser boilers are often the best type of boiler to use with underfloor heating.

Condenser boilers are more efficient than traditional boilers because they recover heat from the flue gases. This can increase the efficiency of a condenser boiler by up to 20%. This extra heat can be used to heat the underfloor heating system, which can save you money on your energy bills.

In addition, condenser boilers are quieter than traditional boilers. This is important if you are considering underfloor heating, as the pipes under the floor can be noisy when they are heated.

If you are considering underfloor heating, it is important to talk to a qualified installer about the best type of boiler for your needs. They will be able to advise you on the most efficient and cost-effective option for your home.

Here are some of the benefits of using a condenser boiler with underfloor heating:

  • Energy efficiency: Condenser boilers are more efficient than traditional boilers, which can save you money on your energy bills.
  • Comfort: Underfloor heating provides a comfortable and even heat that is not as drying as traditional radiators. This can be especially beneficial for people with allergies or asthma.
  • Quiet: Condenser boilers are quieter than traditional boilers, which is important if you are considering underfloor heating.
  • Aesthetic: Underfloor heating can be hidden under the floor, which can save space and improve the aesthetics of your home.

Here are some of the drawbacks of using a condenser boiler with underfloor heating:

  • Cost: Condenser boilers are more expensive to purchase than traditional boilers.
  • Installation: Underfloor heating can be more expensive to install than traditional radiators.
  • Disruption: Underfloor heating installation can be disruptive, as it requires access to the floors.
  • Maintenance: Underfloor heating requires regular maintenance to ensure that it is working properly.

Overall, using a condenser boiler with underfloor heating is a good option for heating your home. It is energy efficient, comfortable, and quiet. However, it is important to consider the cost and time involved in installation before making a decision.

Can you mix underfloor heating with radiators?


Yes, you can mix underfloor heating with radiators. This is a common configuration in many homes, as it allows you to take advantage of the benefits of both systems.

Underfloor heating is a very efficient way to heat a home, as it heats the floors directly, rather than the air. This can save you money on your energy bills and provide a comfortable and even heat. However, underfloor heating can be expensive to install and can take longer to heat up than radiators.

Radiators are a more traditional way to heat a home, but they are still very effective. They are less expensive to install than underfloor heating and can heat up a room more quickly. However, radiators can be unsightly and can dry out the air.

By mixing underfloor heating with radiators, you can get the best of both worlds. The underfloor heating will provide a comfortable and even heat, while the radiators will provide extra heat when needed. This can be especially beneficial in large homes or homes with high ceilings.

It is important to note that you will need a special pump to mix underfloor heating with radiators. This pump will ensure that the water temperature is correct for both systems. You will also need to make sure that the pipes for the underfloor heating and radiators are not too close together, as this can cause the underfloor heating to overheat.

If you are considering mixing underfloor heating with radiators, it is important to talk to a qualified installer. They can help you design a system that is right for your home and your budget.

What is the best size (KW) boiler for underfloor heating?


The best size boiler for underfloor heating will depend on a number of factors, including:

  • The size of your home or commercial space
  • The number of people who live or work in your home or commercial space
  • The climate in your area
  • The type of underfloor heating you are using

In general, you will need a boiler that is at least 1 kW per 10 square meters of underfloor heating. So, if you have a home of 100 square meters with underfloor heating, you will need a boiler of at least 10 kW.

However, if you live in a cold climate, you may need a larger boiler. And if you are using a high-flow underfloor heating system, you may also need a larger boiler.

It is important to consult with a qualified HVAC contractor to determine the best size boiler for your needs. They can assess your specific situation and recommend the right boiler for your home or commercial space.

Here are some additional tips for choosing the right boiler size for underfloor heating:

  • Oversizing your boiler: Oversizing your boiler can lead to wasted energy and higher energy bills. It is important to choose a boiler that is the correct size for your needs.
  • Undersizing your boiler: Undersizing your boiler can lead to discomfort and even cold floors. It is important to choose a boiler that is large enough to meet your heating needs.
  • Considering future growth: If you plan on expanding your home or commercial space in the future, you will need to choose a boiler that is large enough to accommodate your future needs.

By following these tips, you can choose the right boiler size for your underfloor heating and avoid costly mistakes.

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