What’s the new BS 7593:2019 all about?

What’s the new BS 7593:2019 all about?

Its a significant turning point for the industry, helping to drive the adoption of best practice in whole system health, not simply boiler protection.

The revised standard for the preparation, commissioning and maintenance of domestic heating and cooling water systems came into effect on 31st May 2019, superseding BS 7593:2006 which was immediately withdrawn.

The standard now includes the following key changes for those specifying, installing and maintaining domestic heating and cooling systems:

For the first time, the fitting of a permanent in-line filter is required in addition to a chemical clean and fresh water flush before inhibitor is added.

An in-line filter should be fitted to ALL systems.

All recommended cleaning methodologies can be improved with external magnetite capture equipment and mechanical vibration of radiators.

A water test is required to test the level of inhibitor and cleanliness of the system every year.

Inhibitor should be re-dosed every five years or a full system water test undertaken.

BS 7593:2019 is now applicable to both closed loop heating and cooling circuits.

Biocide is required in cooling and low temperature heating systems, and should be considered for higher temperature systems for added protection during downtime.

The changes aim to drive greater consideration for correct water treatment chemistry and filtration including prevention, maintenance and monitoring to properly protect a system for the long term.

A high proportion of boilers that fail in the first year do so because of poor water quality, so by introducing regular testing and redosing, proper system cleaning and the mandatory installation of an in-line filter to the industry’s code of practice, it can significantly improve the efficiency and life expectancy of every household system. This represents massive potential to contribute to the reduction of carbon emissions.

Covering Horsham District, Horsham, Southwater, Broadbridge Heath, Slinfold, Billingshurst, Steyning, Storrington, Ashington, Rudgwick, Cowfold, Pulborough, Warnham, Henfield, Bramber, Upper Beeding, Partridge Green, Rusper & Faygate.