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COMBIMAG  POWER FLUSHING FILTER 

 
 

 

 

 

The CombiMag filter increases power flushing 
efficiency by removing circulating black iron 
oxide contamination from the system water. The 
filter is simply installed in line between the 
heating system and the power flushing pump. 
 
The CombiMag controls the flow of water to give 
a high residence time within the cylinder, to 
ensure that the maximum amount of black iron 
oxide is extracted from the water by the 
powerful magnet. 
 
The design is such that even at maximum 
capacity, there is always a clear passage for the 
circulating water. 
 
The transparent cylinder enables progress of a 
power flush to be visually monitored, and 
enables the engineer to quickly check if the 
magnet requires cleaning. 
 
The built in bypass enables the magnet to be 
cleaned without the need to temporarily stop the 
power flushing process. 

 

 

Benefits 

Reduces dumping time by removing solids from 
the water whilst circulating. 
 
Collects circulating deposits that could lead to 
blockages in restricted areas, and prevents 
them re-entering the system. 
 
Protects the boiler during power flush. 
 
By-pass enables the magnet to be inspected 
without the need to interrupt the power flush. 
 
Reduces environmental contamination by 
collecting the iron oxide and reducing the 
amount of water consumed. 
 
Provides an impressive 
visual aid to both the 
householder and the 
engineer by showing the 
quantity of sludge removed 
from the system, and 
confirming the need for a power flush. 
 
Demonstrates why a permanently installed 
magnetic filter may be beneficial. 

 
Wipe clean magnetic 
surface to minimise 
cleaning time and 
effort. 
 
 
 

 

Specification 

Magnet: 11,000 gauss neodymium rare earth 
magnet, sleeved in stainless steel. 

Maximum magnetic iron oxide capacity: 2.1 kg 

Long water residence time within the cylinder. 

Collects small as well as large particles. 

Dual three-port by-pass valve system. 
 

 

Issue: July 2008 

Operating Instructions – CombiMag

 

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