Heating-water guidance

Heating water care and BS 7593

BS 7593 is industry guidance for looking after domestic heating water. It covers preparing and cleaning a system, protecting the water and checking its condition over time.

BSI lists the current amended version as BS 7593:2019+A1:2024. Check the current standard and the guidance relevant to your system rather than relying on a general summary alone.

What it means in practice

Clean appropriately

System preparation or cleaning should reflect the installation, its condition and the relevant product and manufacturer instructions.

Protect the water

Suitable water treatment and protection can form part of good system care, but the correct approach depends on the system and verified findings.

Check over time

Recorded water checks can help identify changes and support conversations with a competent heating professional.

What the standard does not prove

This page is general information. It does not establish that every homeowner has the same legal, contractual or warranty obligation, that a particular treatment is required, or that a system is compliant. Standards and manufacturer requirements can change; check the current standard, the appliance instructions and professional advice relevant to your system.

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FAQs

What is the BS7593:2019 standard?

BS 7593 is a code of practice concerning preparation, commissioning and maintenance of domestic central-heating and cooling-water systems. BSI lists the current amended version as BS 7593:2019+A1:2024. It provides industry guidance; this page does not establish that a particular system is compliant.

Does BS7593:2019 only apply to brand-new heating systems?

The standard addresses both preparation or commissioning and ongoing system care. Check the current version, applicable requirements and appliance instructions with a competent heating professional rather than assuming every existing system has identical obligations.

Are magnetic filters a legal requirement under this standard?

Requirements for filters should be checked against the current standard, relevant regulations and manufacturer instructions for the installation. A general website summary cannot establish that every system has the same legal requirement or that any filter is suitable.

How often does the standard require a full system flush?

Do not assume that a full flush is required solely because a fixed period has passed. The appropriate action depends on the current guidance, manufacturer instructions, system condition and verified findings. Recorded water checks can support professional review.

What happens if my plumber ignores BS7593:2019 guidelines?

Following applicable installation, servicing and water-treatment requirements matters, but warranty effects depend on the relevant terms and circumstances. A Dr Radiator Assessment does not certify compliance or guarantee warranty acceptance. Consult the current standard, appliance instructions and a competent professional.

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  • One unique, one-use QR code for the results portal

Before testing: Scan the kit code and log in. Complete the test only while logged in and follow the portal safety instructions. The kit contains small parts and reagents. If you are unsure how to sample safely, ask us before ordering.

A water check is a snapshot, not a full system survey. Provider Survey app access is not included. See kit details and preview the instructions for the full process and box contents.

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