What primary (Heat Network) conditions are the AquaHeat HIUs suitable for operating at?

At Baxi, our AquaHeat range of heat interface units (HIUs) are suitable to operate within a primary temperature range from 55°C to 90°C, making them a viable option for different types of buildings.

 

Here, we’ll explain the specific conditions that our AquaHeat HIUs are able to operate at. 

 

The temperature range for the AquaHeat Heat Interface Unit

 

Our AquaHeat HIU provides space heating from between 15 and 85 degrees Celsius (°C), with domestic hot water (DHW) temperatures ranging from 40 to 65 °C. The actual temperature that will be set is dependent on the supply temperature that comes from the heat network supplying the building.

 

The unit is able to deliver a range of heating outputs from between 4 to 60 kilowatts (kW) and DHW outputs between 18kW and 57kW.

 

The right heat network conditions for the Baxi AquaHeat range

 

Baxi AquaHeat HIUs are able to operate in temperatures supplied by the heat network of up to 90°C and maximum pressure of 16bar. 

 

Choosing the right settings for your building

 

A general setting for comfortable room temperature is between 18 and 21°C, though it’s worth noting that the HIU’s flow temperature – the temperature of the water carrying heat from the central network – ranges from between 25°C where underfloor heating is used and up to 75°C for supplying radiators.

 

Your HIU has internal sensors to prevent the pressure in the system from reaching dangerous levels.

 

Heat interface unit installations from Baxi

 

At Baxi, we aim to make the installation of a heat interface unit as simple as possible. Speak to our team about your specific project or requirements. 

Take a look at Baxi's AquaHeat HIU 

For homes fed with heat from a heat network, the Baxi AquaHeat is the answer to your apartment’s heating and hot water requirements. Perfectly suited to supply heat to communal and commercial premises in your development.

Related FAQs

What outputs are the Baxi AquaHeat range available in?

Baxi AquaHeat HI/HWI is available in two different outputs, available with or without a Heat Meter and the Mercurius connected module factory fit. Read more

What primary (Heat Network) conditions are the AquaHeat HIUs suitable for operating at?

The AquaHeat range of HIUs can operate with primary temperatures from the Heat Network up to 90°C and maximum primary operating pressures of 16 bar.

What approvals and certification does the Baxi AquaHeat range hold?

Baxi AquaHeat range of Heat Interface Units (HIUs) are all compliant with UK Water Regulations & Bylaws, with the certification carried out by NSF. Read more

What is VWART?

VWART stands for Volume Weighted Average Return Temperature. Read more about it in our Baxi FAQ section...

In what lead time are the Baxi AquaHeat range products available?

Baxi AquaHeat range & associated accessories & controls are available on an 8-week lead time. Baxi can also manage a phased delivery depending on project.

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