New build heat pumps are ideal due to the design of the heating and hot water system being able to accommodate optimum heat pump flow temperatures of circa 30C.
However, project demands and specifications are now calling for more sustainably focused Heat Pump designs that can be configured to remove the need for a primary mains gas supply and/or deliver higher levels of environmental benefits.
To meet this demand Pure Thermal provide systems that deliver two clear design benefits:
Natural Refrigerant Heat Pump systems:
Pure Thermal Hydrocarbon and CO2 Heat Pump ranges provide the acknowledged low carbon benefits of heat pumps but with the additional benefit of natural refrigerant-based systems.
Ideal for BREEAM projects or applications with high environmental objectives natural refrigerant heat pumps from Pure are well-proven and practical to specify, install and operate.
Where a client has the objective of removing F Gas refrigerants from their building or estate a natural non-F Gas heat pump option can deliver real benefits whilst operating at both medium temperature of circa 35C and also High Temperature of up to 80C.
However, to deliver both heating and hot water from the same system can be challenging where a heat pump only designed without boilers is considered.
For this reason, Pure Thermal provides the specifier with a number of Natural Refrigerant Heat Pump options that can make the application of heat pumps straightforward and practical to specify without the need for additional heating or hot water systems such as gas/fossil fuel boilers.
The primary or sole heat source can now be heat pumps only or heat pumps can be configured with boilers at the same flow temperature to provide support heating capacity only.
Either heat pump only or a heat pump with boiler support is completely practical to use and specify with the configuration dictated by the demands of the actual project.
Heating & Hot Water from a Heat Pump only system:
Pure Thermal provides heat pumps that will deliver heating and hot water with two different methods of operation.
This means that boilers can be completely removed from a design or importantly boilers can be used to support the heat pump, as both heat pump and boiler will operate at the same flow and return temperatures i.e. 70C/35C or 70C/50C etc.
The first method of system design configuration is prioritised hot water production where the heat pump delivers a 45C heating output, and when required a 70C output for hot water production.
This is an efficient method of operation as the heat pump is only delivering the high temperature 70C output as and when required for hot water production.
The second method of operation is where a single flow and return supply to a building is required and the heating and hot water systems are fed from the same supply e.g. supplying heat interface units for example which provide heating and hot water circuits to an apartment and are fed from a single/common 70C supply.
Here a heat pump system with a constant high temperature supply would be configured which would enable both hot water and heating to be delivered from the same High Temperature Heat Pump system.
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