A powerflush certificate records that a central heating system has been chemically cleaned and dosed with inhibitor in line with BS 7593:2019, the standard for the treatment of water in domestic hot water heating systems. It confirms the system was cleaned and protected against corrosion and scale.
Many boiler manufacturers require evidence of system cleaning and inhibitor dosing to keep the boiler warranty valid. A clear powerflush record protects the installation and gives the customer confidence the system was treated properly.
TradePlanr lets you record the flush process, water tests and inhibitor dose on site and produce a professional PDF certificate, so the cleaning is documented without extra paperwork.
TradePlanr generates this and 35+ other gas, electrical, oil, plumbing and renewables certificates as proper PDFs — filled on site, signed on screen and stored against the job. Works even with no signal. Free to download.
A powerflush or chemical clean is commonly carried out before a new boiler is fitted to an existing system, or where a system is sludged and underperforming. BS 7593:2019 sets out the recommended approach to cleaning and ongoing water treatment.
Boiler manufacturers frequently make system cleaning and inhibitor dosing a condition of the warranty, so a certificate is often needed to support a warranty claim.
The record is handed to the customer and kept with the boiler documentation, and may be requested during a warranty claim, service visit or property sale.
Record the property, system type and number of radiators, along with the reason for the flush, so the certificate describes the work accurately.
Log the cleaning method, the chemicals used and the circulation time, in line with the BS 7593 approach to cleaning the system.
Enter any before and after water test results and the inhibitor brand and dose added to protect the system against corrosion and scale.
Capture the customer signature, generate the PDF powerflush certificate and store it against the job, ready to send to the customer or manufacturer.
Manufacturers often require evidence that the system was cleaned and dosed with inhibitor before a new boiler was fitted. A BS 7593 powerflush certificate provides that evidence and helps keep the warranty valid.
It is the British Standard covering the treatment of water in domestic hot water central heating systems, including cleaning, flushing and the use of corrosion inhibitor. The certificate references this standard.
Yes. The inhibitor brand and dose are a key part of the record, because they show the system has been protected against corrosion and scale after cleaning.
Yes. TradePlanr lets you record the flush, water tests and inhibitor dose, capture the signature and produce the PDF at the property.
The Benchmark commissioning checklist completed when a boiler or heating system is installed.
The HHIC Benchmark commissioning checklist for hot water storage cylinders.
The pressure/soundness test record for new or altered water and heating pipework.
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