Select the function for the Heat Interface

Estimate Domestic Hot Water (DHW) Peak Load Requirements

Step 1, select the water supply conditions

Set HOT WATER temperature (°C)
Set COLD WATER temperature (°C)
Set MIX of HOT % to COLD %

Step 2, select realistic operational conditions. Select only the outlets they maybe require simultaneously.

Ensuite Shower 7.75 Ltrs/min
Main Shower 9 Ltrs/min
Basin 6 Ltrs/min
Cloakroom Basin 4 Ltrs/min
Kitchen Sink 6 Ltrs/min
Bath and/or Kitchen Sink 12 ltrs/min

Step 3, the calculator now shows the design flow, select NEXT, and the required network operation conditions are calculated...

Estimated DHW Peak Load Flow Rate and Temperature Lift



Network or Primary Flow and temperature conditions required so that the HIU can deliver the required DHW

Request Contact

Fill in the form below, and we will get in touch to discuss your HIU requirements:

Please select the product you are interested in.


Russia-Ukraine Statement

The condemnation and imposition of sanctions on Russia and Belarus in response to Russia’s military invasion of Ukraine will have enormous implications and an impact on global trade, particularly on commodities, for years to come. The effect of the war on the building material supply in the UK is still to be determined. However, the region including Russia, Ukraine and Belarus accounted for only 1.25% of building products imported into the UK last year.

Intatec Limited is committed to ensuring that products which we supply are not manufactured using any material sourced in Russia or Belarus.