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11th March, 2025

Hybrid Air Source Heat Pump and Gas Boiler

Hybrid Air Source Heat Pump and Gas Boiler

Key takeaways

  • Hybrid systems combine efficiency and rapid heating.
  • They adjust operation based on weather conditions.
  • These systems support the UK's net-zero goals.
  • Try a new boiler quote, finance available including 0% APR.

A hybrid air source heat pump combines two effective technologies: an air source heat pump and a gas boiler. This system optimises heating by using each component as needed. Air source heat pumps absorb warmth from outside air and transfer it inside, providing an energy-efficient way to heat homes.

A hybrid air source heat pump and gas boiler system is a modern solution that combines the strengths of two different heating technologies. It integrates the energy efficiency of an air source heat pump with the reliable and rapid heating capabilities of a gas boiler. This dual system provides efficient and dependable heating for homes, making it an attractive option for homeowners looking to improve their energy usage without compromising on comfort.

These hybrid systems seamlessly switch between the heat pump and boiler, depending on which is more efficient at the time. On milder days, the heat pump may do most of the work, while on colder days, the gas boiler can quickly heat the home. This approach ensures that homeowners always have a comfortable environment, regardless of outside temperatures.

Hybrid air source heat pumps and gas boilers are especially relevant for the UK's push towards net-zero carbon emissions. By reducing reliance on fossil fuels, these systems help lower household carbon footprints. They also offer a way for homes to transition towards more sustainable energy use without dramatically changing existing infrastructure.

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Understanding Hybrid Air Source Heat Pumps And Gas Boilers: How They Work

A hybrid air source heat pump combines two effective technologies: an air source heat pump and a gas boiler. This system optimises heating by using each component as needed. Air source heat pumps absorb warmth from outside air and transfer it inside, providing an energy-efficient way to heat homes.

Gas boilers are included for situations where a heat pump alone cannot meet the heating demand. On colder days, gas boilers activate to maintain comfort. This combination ensures that homes receive consistent warmth regardless of outdoor temperatures.

Hybrid heat pumps can switch automatically between the two energy sources, maximising efficiency.

The operation of this system often involves an intelligent control unit. It decides whether to use the heat pump or the boiler based on factors such as temperature and energy prices. This maximises energy savings and reduces carbon emissions compared to using a standalone boiler or electric heater.

In contrast, a ground source heat pump uses underground pipes to gather heat from the ground. While effective, installation is more complex and costly.

An air-to-water heat pump in the hybrid system heats water for radiators or underfloor heating. This can also provide hot water for household use, ensuring a comfortable and sustainable environment year-round.

How Hybrid Air Source Heat Pumps And Gas Boilers Heat Your Home

Hybrid air source heat pumps and gas boilers work together to provide a reliable heating system for homes. This system combines a heat pump with a gas boiler.

The air source heat pump draws in air from outside, extracts heat from it, and uses this heat to warm the home. It's efficient and reduces the reliance on fossil fuels.

Meanwhile, the gas boiler supplies extra heat when the weather is extremely cold or when there is a higher demand for hot water. It acts as a backup to ensure the home remains warm.

Hybrid systems automatically decide when to use the heat pump and when to switch to the gas boiler. This ensures both efficiency and comfort.

Using both technologies, the system provides a steady supply of heating and hot water. This makes it suitable for varying weather conditions throughout the year. The system is effective for maintaining a comfortable home temperature and reducing energy costs.

Such systems are better for the environment compared to using a gas boiler alone. They lower carbon emissions and take advantage of renewable energy sources.

By utilising this smart combination, homeowners can enjoy a balance of energy savings and warmth. It’s an ideal solution for those looking to upgrade their home’s heating system.

Hybrid Vs Bivalent Heating: What’s The Difference?

Hybrid Heating Systems use both an air source heat pump and a gas boiler. This combination delivers the efficiency of a heat pump with the reliability of a boiler. It adjusts based on weather conditions. When temperatures drop too low, the gas boiler supports the system.

Bivalent Systems work similarly but can use any existing heat source alongside the heat pump, not just gas boilers. This could include oil or electric heaters. They provide additional heating support when needed.

Comparison Table:

Feature

Hybrid Systems

Bivalent Systems

Components

Air source heat pump & gas boiler

Heat pump & another heat source

Flexibility

Specific to gas boilers

Utilises various heat sources

Efficiency

High with intelligent switching

High depending on additional heat source

Application

Residential and commercial buildings

More adaptable to different settings

In essence, both systems enhance efficiency by using multiple heat sources. They offer flexibility and savings compared to traditional gas boilers, especially in variable climates.

Why Hybrid Air Source Heat Pumps And Gas Boilers Matter For The UK’s Net-Zero Goals

Hybrid air source heat pumps paired with gas boilers play a significant role in reaching the UK's net-zero targets. By using less energy from fossil fuels, these hybrid systems lessen the demand for traditional energy sources. Energy efficiency becomes a primary benefit, reducing greenhouse gas emissions considerably.

Energy-efficient hybrid heat pumps utilise electricity to provide heating. They work well with underfloor heating, enhancing their efficiency. Insulation improvements further optimise their performance in homes, cutting down on heat loss and ensuring residents use energy wisely.

With hybrid systems, homes can benefit from reduced running costs. These systems switch between the heat pump and the fossil fuel boiler based on energy prices and weather conditions. This adaptability ensures that the homes not only save energy but also manage their spending on heating effectively.

Energy-efficient hybrid heat pumps come with a good energy label heating performance, offering consumers a clear understanding of their efficiency strides. Such eco-friendly labelling advances the adoption of these systems, encouraging more households to make the transition.

The integration of these systems propels the heating sector towards a greener future. While challenges remain in infrastructure, hybrid systems provide a bridge to a low-carbon society, helping the UK transition smoothly.

Table of Features:

Feature

Benefit

Energy Efficiency

Reduced emissions

Adaptability

Lower running costs

Insulation Compatibility

Improved heat retention

Energy Labels

Consumer awareness

These systems represent an essential step in the UK’s journey towards a sustainable and environmentally friendly energy landscape.

Which Brands Make Hybrid Air Source Heat Pumps And Gas Boilers?

Several brands offer hybrid air source heat pumps and gas boilers. These systems combine an efficient heat pump with a traditional gas boiler to provide heating throughout the year.

Worcester Bosch is a well-known name in heating. They offer hybrid systems like the Hybrid 7000iAW. This combines a heat pump with a gas combi boiler.

Vaillant produces the aroTHERM hybrid air source heat pump. This model pairs with a gas boiler to deliver reliable heating solutions for homes.

British Gas is also involved in the market for hybrid systems. They provide installation and maintenance services for these systems.

Daikin offers another choice for hybrid systems. They are recognised for their advanced technology in heating and cooling solutions.

In addition to these, Alpha manufactures a range of heating products. This includes hybrid systems that integrate both gas boilers and air source heat pumps.

These companies are leaders in creating efficient and reliable hybrid heating systems. Their products help reduce energy consumption while maintaining comfort in homes.

Can You Get A Grant For A Hybrid Air Source Heat Pump And Gas Boiler?

The UK government offers grants to support the installation of efficient heating systems. The Boiler Upgrade Scheme encourages homeowners to switch from fossil fuels to low-carbon heating. This includes grants for systems like air source heat pumps and biomass boilers.

However, hybrid systems that combine a gas boiler with an air source heat pump do not qualify for these grants. The scheme specifically excludes hybrid heat pump systems. This is important for homeowners considering their options for home heating upgrades.

Several grants focus on single-type systems. Homeowners can receive financial support for either a full air source heat pump or solely a biomass boiler. These options help to improve energy efficiency and reduce carbon emissions.

In Scotland, the Home Energy Scotland Grant is available to support heat pump installations. Like the Boiler Upgrade Scheme, it doesn't cover hybrid systems, but offers help for full systems.

When planning an upgrade, it's crucial to check eligibility criteria for these grants. Although hybrid systems offer flexibility by using two sources of heat, they don't attract government financial support. It's always best to consult utility advisors or government websites for the latest updates on grants and schemes.

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Frequently Asked Questions

Can an air source heat pump work alongside a gas boiler?

Yes, air source heat pumps can work alongside a gas boiler. This hybrid setup allows the heat pump to provide heating and hot water under optimal conditions, while the gas boiler supports during peak demand or colder temperatures.

Can you have a hybrid heat pump with an existing boiler?

Many existing boilers can be integrated into a hybrid system. By adding an air source heat pump, homeowners can enhance efficiency without completely replacing their current boiler, provided the system specifications are compatible.

What are the disadvantages of a hybrid heat pump?

While hybrid heat pumps are generally efficient, they may have higher initial installation costs. Space for both units can be a consideration, and their effectiveness can vary based on local temperatures and energy tariffs.

Can I combine a heat pump and a boiler?

Combining a heat pump with a boiler is a practical solution. The heat pump handles everyday heating needs, and the boiler provides additional heat when needed. It is essential to ensure correct integration according to system specifications.

Is a hybrid heat pump worth it?

For many, hybrid heat pumps present a worthwhile investment. They optimise energy use and reduce reliance on fossil fuels. The decision often depends on energy prices, home specifications, and environmental goals.

Is it cheaper to run a heat pump than a boiler?

Running costs depend on energy tariffs, but heat pumps usually offer savings on energy bills due to higher efficiency. A hybrid system allows switching between the heat pump and boiler for cost-effective operations.

Why is my electric bill so high with an air source heat pump?

Higher electric bills may result from improper heat pump settings or maintenance issues. Ensuring the system is correctly configured to specification and serviced can help improve efficiency and reduce costs.

Stephen Day profile photo
Article by
Stephen Day

Co-founder

Gas Safe registered and FGAS certified engineer with over 20 years experience in the heating and cooling industry.