Monobloc heat pumps are single unit heat pumps that contain all of the parts; like the heat exchanger, main pump, evaporator, condenser and compression valves in a single system. The single unit normally sits outside of your home.
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Monobloc heat pumps are quite large and require outdoor space against an external wall so they can be installed correctly.
Monobloc heat pumps need professional installation but are simpler to install than air conditioning or ground or water source heat pumps.
The monobloc heat pumps outdoor unit will connect directly with your homes conventional heating systems to provide heat through radiators or underfloor heating from external air.
Heres What is a heat pump which explains the basics of heat pumps.
The pros and cons of a monobloc heat pump system include;
Some of the benefits of a monobloc heat pump system include;
Here are the disadvantages of monobloc heat pumps;
Monobloc heat pumps only heat water to pump around your central heating system which goes directly to your radiators or underfloor heating.
To get running hot water you will also need to install a separate hot water storage tank. The only element of a monobloc heat pump that will be located within your home is the connected hot water cylinder.
Split heat pumps conversely are different to monobloc heat pumps because they have two separate units. The split system usually has an internal unit and an outdoor unit which works as a heat exchanger and compressor.
Split heat pumps are better for situations where more complex installations are necessary or when theres no obvious place for a monobloc heat pump unit and they can also be very quiet.
They can be preferable if you only have a small outside space as the outside unit is generally smaller.
Split systems are often referred to as HVACs. Find out more about split HVAC heat pump systems.
Monobloc air source heat pumps include all of their essential parts and equipment within a single unit that can be installed outside your home.
The majority of monobloc air source heat pumps, dont require traditional gas to work instead they use refrigerants so monobloc heat pumps do not require F gas qualifications (fluorinated gas) to install.
This makes many monobloc heat pump systems cheaper and easier to install than air conditioning units or ventilation systems.
Most monobloc heat pump systems will need to be installed by professional heating installers.
Air source monobloc heat pumps will need external air so the majority of systems are designed as a single outdoor unit that is installed outside the property.
The external unit will need to be installed at ground floor level and somewhere that is easy to access for ongoing maintenance and servicing.
Many people choose to have their heat pump unit situated outside their utility or boiler room is a popular choice because it is easy to connect the heat pump to the heating system.
The outside unit is generally reasonably large due to housing all of the components necessary to get your homes heating up and running.
Monobloc heat pumps can work well on large properties where you have plenty of outdoor space to house the system and let it operate successfully.
You can get monobloc ground source heat pumps and water source heat pumps. However, they will need to connect to a suitable heat source, through boreholes, aquifers, lakes, rivers or waste heat through a series of pipes.
A monobloc ground source heat pump can still be considered a split system because ground and water source systems require underground or underwater pumps in boreholes to access heat from the ground or a body of water to generate heat.
You will also need an internal hot water tank to store hot water from your heat pump to feed hot water taps in your home.
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Most monobloc heat pumps can work effectively in temperatures as low as -25° C. Many heat pumps designed for lower temperatures feature enhanced vapour injection (EVI) technology that helps to maintain the pressures of the refrigerant even at low temperatures.
In a much colder climate, a ground source monobloc heat pump could be a better option as ground temperatures are more stable throughout the year than air temperatures.
Air sealing and insulation, as well as correctly sizing the heat pump for your home are also important considerations.
If youre replacing a traditional boiler with a heat pump, you shouldnt have too many changes to make. However, you may wish to;
Improve your homes insulation; this will help your home retain more heat so your heat pump wont have to work so hard to keep your home at a comfortable temperature. Many UK homes are currently poorly insulated.
Upgrade your radiators; heat pumps work best when they have a larger surface area to distribute heat. So upgrading your radiators can help your home feel warmer more quickly. Replacing existing radiators with aluminium radiators can also help distribute heat from your heat pump quickly and efficiently as aluminium is an effective conductor.
With a number of different options on the market, it can be difficult to know which type of air source heat pump is right for yours or your clients project. Split or monobloc heat pumps are just one of those defining factors, and something we are increasingly asked about here at Freedom HP as the demand for renewable heating solutions grows.
The terms split and monobloc refer to the system type itself.
Monobloc heat pumps
A monobloc heat pump is similar to a boiler in that it is a one block system, with all of its components (except the hot water cylinder which is inside the home) inside a single unit that sits outside the home. A Midea 4 Mono is an example of a great monobloc system.
They differ from split heat pumps because the components of the refrigeration cycle are in the outdoor unit. Only water connections need to be made to the back of the heat pump and there will be a wiring centre inside the house or in the outdoor unit for pumps etc. to wire back to.
Because they dont require someone with F Gas qualifications to get involved with the use of refrigerants, monobloc heat pumps are a great way for heating installers to get involved with these renewable solutions. Through relevant heat pump training courses and with the support of a knowledgeable distributor such as Freedom HP, you can be well on your way to carrying out your own installations.
Benefits of monobloc
Easy install
All in one box
Easy maintenance
Split heat pumps
In comparison, a split heat pump has both an outside unit (incorporating the heat exchanger and refrigerant) and an internal unit (containing circulation pumps, heat exchangers etc.) which is sometimes combined with the hot water cylinder.
Some split systems, such as the Hitachi Yutaki S-Combi, can combine the internal unit and hot water cylinder into one sleek unit.
Benefits of split
Can be installed further away from the property (up to 75 meters)
No glycol / anti-freeze required
Smaller and quieter
Which is right for your project?
Typically, most homes will require a monobloc heat pump. Split systems are an option for more complex installations as they can be installed up to 75 meters away from the home, which gives greater installation flexibility.
With heat pumps set to revolutionise the way we heat our homes, there is no better time to get involved. Give us a call on or to discuss your project and find out how we can support you.
Monobloc heat pumps are single unit heat pumps that contain all of the parts; like the heat exchanger, main pump, evaporator, condenser and compression valves in a single system. The single unit normally sits outside of your home.
Monobloc heat pumps are quite large and require outdoor space against an external wall so they can be installed correctly.
Monobloc heat pumps need professional installation but are simpler to install than air conditioning or ground or water source heat pumps.
The monobloc heat pumps outdoor unit will connect directly with your homes conventional heating systems to provide heat through radiators or underfloor heating from external air.
Heres What is a heat pump which explains the basics of heat pumps.
The pros and cons of a monobloc heat pump system include;
Some of the benefits of a monobloc heat pump system include;
Here are the disadvantages of monobloc heat pumps;
Monobloc heat pumps only heat water to pump around your central heating system which goes directly to your radiators or underfloor heating.
To get running hot water you will also need to install a separate hot water storage tank. The only element of a monobloc heat pump that will be located within your home is the connected hot water cylinder.
Split heat pumps conversely are different to monobloc heat pumps because they have two separate units. The split system usually has an internal unit and an outdoor unit which works as a heat exchanger and compressor.
Split heat pumps are better for situations where more complex installations are necessary or when theres no obvious place for a monobloc heat pump unit and they can also be very quiet.
They can be preferable if you only have a small outside space as the outside unit is generally smaller.
Split systems are often referred to as HVACs. Find out more about split HVAC heat pump systems.
Monobloc air source heat pumps include all of their essential parts and equipment within a single unit that can be installed outside your home.
The majority of monobloc air source heat pumps, dont require traditional gas to work instead they use refrigerants so monobloc heat pumps do not require F gas qualifications (fluorinated gas) to install.
This makes many monobloc heat pump systems cheaper and easier to install than air conditioning units or ventilation systems.
Most monobloc heat pump systems will need to be installed by professional heating installers.
Air source monobloc heat pumps will need external air so the majority of systems are designed as a single outdoor unit that is installed outside the property.
The external unit will need to be installed at ground floor level and somewhere that is easy to access for ongoing maintenance and servicing.
Many people choose to have their heat pump unit situated outside their utility or boiler room is a popular choice because it is easy to connect the heat pump to the heating system.
The outside unit is generally reasonably large due to housing all of the components necessary to get your homes heating up and running.
Monobloc heat pumps can work well on large properties where you have plenty of outdoor space to house the system and let it operate successfully.
You can get monobloc ground source heat pumps and water source heat pumps. However, they will need to connect to a suitable heat source, through boreholes, aquifers, lakes, rivers or waste heat through a series of pipes.
A monobloc ground source heat pump can still be considered a split system because ground and water source systems require underground or underwater pumps in boreholes to access heat from the ground or a body of water to generate heat.
You will also need an internal hot water tank to store hot water from your heat pump to feed hot water taps in your home.
Most monobloc heat pumps can work effectively in temperatures as low as -25° C. Many heat pumps designed for lower temperatures feature enhanced vapour injection (EVI) technology that helps to maintain the pressures of the refrigerant even at low temperatures.
In a much colder climate, a ground source monobloc heat pump could be a better option as ground temperatures are more stable throughout the year than air temperatures.
Air sealing and insulation, as well as correctly sizing the heat pump for your home are also important considerations.
If youre replacing a traditional boiler with a heat pump, you shouldnt have too many changes to make. However, you may wish to;
Improve your homes insulation; this will help your home retain more heat so your heat pump wont have to work so hard to keep your home at a comfortable temperature. Many UK homes are currently poorly insulated.
Upgrade your radiators; heat pumps work best when they have a larger surface area to distribute heat. So upgrading your radiators can help your home feel warmer more quickly. Replacing existing radiators with aluminium radiators can also help distribute heat from your heat pump quickly and efficiently as aluminium is an effective conductor.
With a number of different options on the market, it can be difficult to know which type of air source heat pump is right for yours or your clients project. Split or monobloc heat pumps are just one of those defining factors, and something we are increasingly asked about here at Freedom HP as the demand for renewable heating solutions grows.
The terms split and monobloc refer to the system type itself.
Monobloc heat pumps
A monobloc heat pump is similar to a boiler in that it is a one block system, with all of its components (except the hot water cylinder which is inside the home) inside a single unit that sits outside the home. A Midea 4 Mono is an example of a great monobloc system.
They differ from split heat pumps because the components of the refrigeration cycle are in the outdoor unit. Only water connections need to be made to the back of the heat pump and there will be a wiring centre inside the house or in the outdoor unit for pumps etc. to wire back to.
Because they dont require someone with F Gas qualifications to get involved with the use of refrigerants, monobloc heat pumps are a great way for heating installers to get involved with these renewable solutions. Through relevant heat pump training courses and with the support of a knowledgeable distributor such as Freedom HP, you can be well on your way to carrying out your own installations.
Benefits of monobloc
Easy install
All in one box
Easy maintenance
Split heat pumps
In comparison, a split heat pump has both an outside unit (incorporating the heat exchanger and refrigerant) and an internal unit (containing circulation pumps, heat exchangers etc.) which is sometimes combined with the hot water cylinder.
Some split systems, such as the Hitachi Yutaki S-Combi, can combine the internal unit and hot water cylinder into one sleek unit.
Benefits of split
Can be installed further away from the property (up to 75 meters)
No glycol / anti-freeze required
Smaller and quieter
Which is right for your project?
Typically, most homes will require a monobloc heat pump. Split systems are an option for more complex installations as they can be installed up to 75 meters away from the home, which gives greater installation flexibility.
With heat pumps set to revolutionise the way we heat our homes, there is no better time to get involved. Give us a call on or to discuss your project and find out how we can support you.