Power Flushing
Professional Power Flush Solutions for Central Heating Systems
Home » Power Flushing Products for Central Heating
What is Power Flushing?
Central heating systems can gradually build up a combination of scale, sludge and corrosion by-products within the boiler, pipework and radiators. This manifests itself as cold spots on radiators, failure to pump to the furthest radiators and noise in the boiler.
Central heating systems also need to be flushed prior to filling with preservative, in order to remove flux and other deposits, before commissioning for the first time (BS7593:1992).
It can be often time consuming or impractical to remove radiators for cleaning out severe blockages. Even when radiators are removed, the only flushing capability often available is with a hose at mains pressures and flows.However, this process will not loosen or remove sludge which has bonded to the inside of radiators, or the remainder of the heating system.
The Calflush is the solution. Calflush recirculates the cleaning solution at a high flow through the system, while alternating the direction of flow. Thorough cleaning can be completed in a short time with high efficiency and minimal disturbance to the existing heating circuit, without the need for multiple visits or frequent draining and refilling.
Homeowners may require an explanation of powerflushing to make it clear how this benefits a heating system and helps to prevent system breakdowns.
Why Power Flush a Central Heating System?
Over time, debris and contaminants can build up within radiators, pipework and other components of a central heating system.
Signs that a system may require cleaning can include:
- Cold spots on radiators
- Poor circulation
- Radiators taking longer to heat
- Boiler noise
- Uneven heating
- Sludge or discoloured system water
- Reduced heating performance
- Recurring heating system issues
A professional power flush can help remove the underlying contamination contributing to these problems.
The Calmag CalFlush
Professional Power Flushing Equipment
The CalFlush Power Flushing Unit is capable of removing as much as 85% of central heating system contaminants and debris resulting in lower fuel bills and the prolonged life of a central heating system and boiler.
Power flushing ensures flux and other deposits are removed, prior to adding a corrosion inhibitor which is a requirement of Part L of the Building Regulations (BS7593:1992).
- For fast, effective cleaning of central heating systems
- Removes sludge, scale, silt, corrosion, oil, grease and flux
- Prevents boiler noise
- Improves energy efficiency therefore reducing fuel bills
- Prevents boiler and heating system breakdown
- Robust CalFlush machine designed for repeated use
- Compact unit with carry handle-lightweight and easy to transport
- All hoses and accessories included
- Chemical cleaners are easily added
- Saves time on site with no need to remove radiators
- Easy visual check of water returning to the tank or drain
- Compliance with Building Regulations Part L (BS7593: 1992)
- Compact – only 630mm high
- Lightweight at 17kg empty
- Easy to understand and use
- Saves time and money
- Simple & quick to connect to a heating system
- Large tank capacity at 36 litres
- Compatible with all approved chemicals
- Ideal for critical applications requiring high efficiency pumps
- Powerful acid proof flushing pump – 0.50hp and IP55 rated
15M Head (up to 20/30 radiators) - One visit required to flush entire system
- Flow Reverser – dump facility
- Optimum flow rate for domestic properties – 50 litres per minute
Height x Diameter – 630mm x 350mm
Weight Empty – 17kg
Weight Working – 45kg
Max Inlet Pressure – 5 bar
Motor Rating – 0.50Hp
Max Temperature of Recirculating Liquid – 80°C
Max Drain Flow – 50 lpm
Max Recirculation Flow – 1.3 bar
Connections – 3/4″ male
Motor Insulation – IP55
Power Connection – 13 amp plug BS1363
Cable Length – 2.5 metres
Full Load Current – 370W
Power Flushing FAQs
What does a power flush remove?
Power flushing can help remove sludge, corrosion products, scale, flux, oil, grease, silt and other debris from contaminated central heating systems.
When does a central heating system need a power flush?
A power flush may be appropriate where a system suffers from poor circulation, cold radiators, boiler noise, uneven heating or significant sludge and debris.
How long does a power flush take?
The time required depends on the size, condition and complexity of the heating system and the level of contamination present.
Is power flushing suitable for every heating system?
The suitability of power flushing depends on the condition, age, construction and configuration of the heating system. Installers should assess the system before carrying out any cleaning procedure and follow the equipment and cleaning product manufacturer’s instructions.
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CLEAN
Power Flushing & System Cleaning
Over time, central heating systems can accumulate sludge, scale, corrosion, flux, oil, grease and other debris. This contamination can restrict circulation, reduce heating performance and contribute to boiler and radiator problems.
Calmag power flushing products are designed to help heating professionals effectively clean contaminated central heating systems and restore circulation.
Discover:
- CalFlush Power Flushing Unit
- Powerflush Chemical
- Central heating system cleaning
PROTECT
Central Heating Chemicals & Treatment
Cleaning a heating system is only part of the solution. Once a system has been cleaned, it needs ongoing protection against corrosion, scale and further contamination.
Calmag central heating chemicals and treatment packs are designed to help maintain water quality and protect heating systems, boilers, radiators and pipework.
Discover:
- Central heating inhibitors
- System cleaners
- Heating treatment packs
- System protection chemicals
FILTER
Central Heating Chemicals & Treatment
Even with chemical protection, heating systems can generate and collect debris. A suitable central heating filter provides an additional layer of protection by capturing unwanted contaminants before they can circulate around the system.
Calmag central heating filters are designed to help protect boilers and heating components by removing debris from the system.
Discover:
- Central heating filters
- Magnetic filtration
- Boiler protection
- System filtration
For all your Sales & Technical enquiries and for your nearest merchant
please call direct on 01535 210320
water filtering products for domestic use too.
Available from merchants via your local installer.






