About Us: Air source heat pump water heaters.com
We specialise in supplying air source heat pump domestic hot water heaters and heat pump compatible hot water cylinders for homes, apartments, commercial buildings and other properties across the UK.
Our focus is simple: We provide efficient, correctly specified hot water solutions that are designed around modern heat pump technology.
Whether you need a complete air source heat pump water heater with an integral storage cylinder or an indirect hot water cylinder for use with an external air source or ground source heat pump, we aim to make product selection straightforward and technically informed.
AirSourceHeatPumpWaterHeaters.com is owned and operated by Flexiheat UK, an established UK supplier of commercial and industrial heating and hot water equipment. Due to the growing popularity of air source heat pump water heaters and heat pump hot water cylinders, Flexiheat UK created this dedicated website to provide a specialist resource focused entirely on these products and their applications.
Our address and company information are as follows:
Flexiheat UK Ltd,
Unit 49 Azura Close,
Woolsbridge Industrial Estate,
Three Legged Cross, Wimborne
Dorset, BH21 6SZ
Tel: 01202 822221
Company Registration No: 10086380
As demand for low-carbon and energy-efficient domestic hot water solutions continues to increase, we recognised the need for a dedicated website that provides these products with the technical detail, guidance and product information they require, rather than treating them as a small part of a much broader heating range.
Specialists in Heat Pump Domestic Hot Water
Heat pumps operate differently from traditional gas or oil boilers, particularly when producing domestic hot water, or DHW.
Lower primary flow temperatures mean that heat transfer, cylinder design, storage capacity and recovery performance all become especially important.
That is why we concentrate on products specifically designed for heat pump applications rather than treating the hot water cylinder as a standard component.
Our product range covers two main types of heat pump hot water solution.
Air Source Heat Pump Domestic Hot Water Heaters
An air source heat pump domestic hot water heater combines the heat pump and hot water storage cylinder within one integral appliance.
These systems are designed specifically for domestic hot water production rather than whole-house space heating.
The heat pump extracts thermal energy from the surrounding or ducted air and transfers this heat into the stored water using a refrigerant circuit, compressor, evaporator and condenser.
This can provide a highly efficient alternative to direct electric water heating and can significantly reduce reliance on an electric immersion heater.
Depending on the application, these units can be suitable for houses, flats, apartments, offices and commercial properties requiring an efficient source of stored hot water.
Heat Pump Compatible Hot Water Cylinders
We also supply indirect hot water cylinders designed for external heat pumps.
These cylinders are intended for use with systems where the air source or ground source heat pump is installed separately from the hot water storage vessel.
A key feature of a heat pump compatible cylinder is the large surface-area heat exchanger coil.
Because heat pumps generally operate most efficiently at lower flow temperatures than conventional boilers, a larger coil helps transfer sufficient energy into the stored domestic hot water while supporting good recovery performance.
Our focus is therefore on cylinders designed around the requirements of low-temperature heat pump systems, including appropriate coil performance, insulation, storage capacity and connection arrangements.
Supporting Efficient Heat Pump System Design
Choosing the right hot water solution involves more than simply selecting a cylinder based on litre capacity.
Important considerations can include:
- Number of occupants
- Daily domestic hot water demand
- Shower and bath usage
- Heat pump output
- Heat exchanger coil performance
- Required storage temperature
- Recovery time
- Standing heat loss
- Available installation space
- Source air temperature for integrated heat pump water heaters
Correctly matching these factors can improve system efficiency, help maintain reliable hot water availability and reduce unnecessary use of supplementary electric heating.
Products for Modern Low-Carbon Heating Systems
Heat pump technology is becoming increasingly important as UK homes and businesses move towards more efficient, lower-carbon heating and hot water systems.
Our product range supports this transition.
Modern systems can incorporate technologies and features such as R290 refrigerant, high-performance insulation, smart controls, solar PV integration, immersion heater backup and efficient low-temperature heat exchange.
Whether the requirement is for a dedicated air source heat pump water heater or a separate heat pump cylinder, the objective remains the same: efficient and reliable domestic hot water production.
Technical Knowledge and Practical Product Selection
We believe heat pump products should be selected based on their technical suitability rather than simply on headline capacity.
Our approach is therefore based on understanding the complete application, including the available heat source, hot water demand, cylinder size, heat transfer requirements and installation conditions.
By specialising in air source heat pump domestic hot water heaters and heat pump compatible hot water cylinders, we can focus on the products, technologies and technical considerations that matter most for modern DHW systems.
We aim to help homeowners, installers, contractors, consultants and commercial customers choose a hot water solution that is efficient, correctly sized and suitable for long-term use with heat pump technology.