Central Heating Filters
Central Heating Filters for Boiler & System Protection
Why Use a Central Heating Filter?
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.
Choose the Right Filter for the System
Calmag offers central heating filtration solutions designed to suit different heating system requirements and installation applications.
Whether you’re looking to protect a new boiler, upgrade an existing heating system or provide additional protection following system cleaning, Calmag has a filtration solution for the job.
MINI
For systems of up to 10 radiators
Your ideal, compact solution for installing in confined spaces. This product is designed to filter out undesirable particles and build-up in your boiler to keep it running as efficiently as possible for years to come.
- Compact
- 800 micron mesh to collect non-magnetic particles
- 7000 Guass magnet to collect magnetite efficiently
- Withstands high temperatures – up to 90°C
- Magnet carries a 25 year guarantee
Height x Width x Depth- 63mm x 145mm x 120mm
Magnet Strength – 7000 gauss
Weight – 410g
Max Operating Pressure – 6 bar
HF1
22mm Central Heating Filter - for installs needing flexibility
For systems of 10+ radiators
The ultimate in magnetic filtration
Can be installed as a permanent product within the central heating system and can also be used in conjunction with the Calmag Power Flushing unit.
- 360° installation
- Full bore isolating ball valves on inlet and outlet connections
- Withstands high temperatures – up to 90°C
- Air bleed valve included for mess-free priming and allows the unit to
be fully emptied - Supplied with a full set of sealing O rings, spanner and drain valve
- No ongoing running costs
- High intensity rare earth magnet
- Externally removed magnet
- Easy installation – simple and trouble free
- Restores efficiency levels
- Withstands high temperatures
- Excellent conductivity
- Does nor crack or disintegrate
- Durable and resilient
- 500ml dosing capacity
- Air bleed valve
Height x Width x Depth – 226mm x 86mm x 148mm
Magnet Strength- 9000 gauss
Weight – 780g
Max Operating Pressure – 6 bar
Connections – 22mm
Fluid Capacity – 500ml
HF2
22mm Central Heating Filter - for Inline Installation
For systems of 10+ radiators
The ultimate in magnetic filtration
Can be installed as a permanent product within the central heating system and can also be used in conjunction with the Calmag Power Flushing unit.
- In line filter for fast fitting into vertical pipe installs
- 90° ball valve included
- Withstands high temperatures – up to 90°C
- 600ml dosing capacity
- Bottom-mounted air bleed for mess-free priming and allows the unit to
be fully emptied - Supplied with a full set of sealing O rings, spanner and drain valve
- No ongoing running costs
- High intensity rare earth magnet
- Externally removed magnet
- Easy installation – simple and trouble free
- Restores efficiency levels
- Withstands high temperatures
- Excellent conductivity
- Does nor crack or disintegrate
- Durable and resilient
- 500ml dosing capacity
- Air bleed valve
Height x Width x Depth – 230mm x 115mm x 97mm
Magnet Strength- 9000 gauss
Weight – 735g
Max Operating Pressure – 6 bar
Connections – 22mm
Fluid Capacity – 600ml
Heating Packs
Everything an installer needs to help clean, maintain and protect central heating systems.
A heating system is only as good as the water flowing through it. Sludge, corrosion, scale and installation debris can all affect system efficiency, increase the risk of component failure and reduce the working life of heating system components.
Calmag Heating Chemical Packs provide installers with a convenient way to clean and protect heating systems, bringing the essential treatment products together in one simple solution.
Whether you’re installing a new boiler, replacing an existing system or carrying out routine maintenance, Calmag gives you the products you need to help keep heating systems cleaner, more efficient and better protected.
Great for:
- New boiler installations
- Boiler replacements
- Heating system servicing
- Radiator / system upgrades
For all your Sales & Technical enquiries and for your nearest merchant please call direct on 01535 210320
Central Heating Filter FAQs
What is a central heating filter?
A central heating filter is a filtration device installed into a heating system to capture sludge, corrosion products and other debris from circulating system water.
What does a magnetic filter do?
A magnetic filter uses magnetic attraction to capture ferrous particles, including magnetite, from central heating system water.
Does a central heating filter remove sludge?
A suitable filter can capture sludge and other suspended contaminants from circulating system water. The effectiveness depends on the type of filtration and the nature of the contamination.
Do I need a filter if I use central heating inhibitor?
Filtration and chemical treatment perform different functions. An inhibitor helps protect against corrosion, while a filter physically captures circulating debris. Using appropriate filtration alongside chemical treatment can provide complementary system protection.
Chat to a Calmag Expert
Just pop your details in below and one of the team will get back to you. Or, give us a call on 01986 784759
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