# data[].attributes.body
• Heat pumps are efficient heating systems that transfer heat from outside to inside a building
• They work like a refrigerator in reverse
• Can provide both heating in winter and cooling in summer
• Main types: air-source, ground-source, and water-source heat pumps

# data[].attributes.body
• Reduces carbon footprint significantly
• Helps combat climate change
• Lowers dependency on fossil fuels
• Supports UK's goal to reach net-zero emissions by 2050
• Can lead to lower energy bills in the long run

# data[].attributes.body
• Extracts heat from air, ground, or water source
• Uses refrigerant to absorb and release heat
• Compressor increases temperature of the refrigerant
• Heat is distributed through the building via radiators, underfloor heating, or air convectors

# data[].attributes.attachment_link.title
Heat Pumps Explained - How Heat Pumps Work HVAC

# data[].attributes.body
• Outdoor unit (evaporator)
• Indoor unit (condenser)
• Compressor
• Expansion valve
• Refrigerant lines
• Heat distribution system (e.g., radiators, underfloor heating)
• Control system

# data[].attributes.body
Function

Pressure Reduction: The expansion valve reduces the pressure of the refrigerant as it leaves the condenser, allowing it to expand and cool.

Flow Regulation: It controls the flow of refrigerant into the evaporator, ensuring optimal performance.

# data[].attributes.body
• Assess property suitability for heat pump installation
• Size and select appropriate heat pump system
• Install outdoor and indoor units
• Connect refrigerant lines and electrical components
• Set up and configure control systems
• Perform initial system tests and adjustments

# data[].attributes.body
• Conduct regular system checks and cleaning
• Inspect refrigerant levels and recharge if necessary
• Clean or replace air filters
• Check and adjust system pressures
• Verify proper operation of all components
• Diagnose and repair faults
• Advise homeowners on optimal system use

# data[].attributes.body
• Insufficient heating or cooling
• Unusual noises or vibrations
• Ice formation on outdoor unit
• Refrigerant leaks
• Reduced efficiency or increased energy consumption

# data[].attributes.body
• Refrigerant gauges and hoses
• Vacuum pump
• Leak detector
• Multimeter
• Thermometer and infrared camera
• Pipe cutters and flaring tools
• Torque wrench
• Recovery machine
• Safety equipment (gloves, goggles, etc.)

# data[].attributes.body
• Digital manifold gauges
• Clamp meters
• Psychrometers
• Thermal imaging cameras
• Ultrasonic flow meters
• Data loggers
• Refrigerant analyzers

# data[].attributes.body
• Higher efficiency models
• Integration with smart home systems
• Hybrid systems combining heat pumps with other technologies
• Improved defrosting techniques
• Use of natural refrigerants

# data[].attributes.body
• Renewable Heat Incentive (RHI) scheme
• Boiler Upgrade Scheme
• Green Homes Grant
• Potential future legislation on low-carbon heating
• Training programs for heat pump installers
• Public awareness campaigns

# data[].attributes.attachment_link.readable_text
Skip to main content

Cookies on GOV.UK

We use some essential cookies to make this website work.

We'd like to set additional cookies to understand how you use GOV.UK, remember your settings and improve government services.

We also use cookies set by other sites to help us deliver content from their services.

You have accepted additional cookies. You can change your cookie settings at any time.

You have rejected additional cookies. You can change your cookie settings at any time.

Accept additional cookies Reject additional cookies View cookies

You can get one grant per property. Grants are available for:

£5,000 towards an air source heat pump

£6,000 towards a ground source heat pump (including water source heat pumps and those on shared ground loops)

£5,000 towards a biomass boiler

You cannot get a grant for a hybrid heat pump system (for example a combination of gas boiler and air source heat pump).

The system you install must meet certain standards, such as minimum efficiency levels (your installer can advise you on these).

The system's maximum capacity must be less than 45kWth - anything over is not eligible.

Find out more about heat pumps and biomass boilers.

You cannot get a grant to replace a low carbon heating system.

# data[].attributes.attachment_link.description
You could get a grant to install a heat pump or biomass boiler. Find out if you're eligible and how to apply.

# data[].attributes.body
The compressor compresses low-pressure refrigerant gas from the evaporator into a high-pressure gas.