Permutit® SLH Deaerating Heaters

Effective at removing non-condensable gases, such as oxygen, free carbon dioxide and other non-condensable gases, Permutit® SLH deaerating heaters protect your pumps, piping, boilers and condensate return lines from corrosion.

You must be interested in our Permutit® SLH deaerating heaters, which are now part of the Siemens family of companies. Known for dependability and long-term operation, Permutit® SLH deaerating heaters have been installed in many applications worldwide.

SLH deaerating heaters remove oxygen, free carbon dioxide and other non-condensable gases from make-up water used for boiler feed, as well as from return condensate. Removal of these corrosive gases protects piping, pumps, boilers and condensate return lines from corrosion.

In addition to new systems, we can provide replacement parts and internals for deaerating heaters, please click here.

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Features and Benefits

SLH deaerating heaters combine simplicity and compactness with high performance and operational efficiency. The SLH product line includes horizontal deaerating heaters of unsurpassed value, especially where space is of prime importance and are ideal for low-pressure boiler plants.

With flow rates from 18 to 300 gpm, some SLH benefits:

Compact construction keeps headroom and space requirements to a minimum
Violent scrubbing action assures complete heating and deaeration
Maximum efficiency is achieved by preheating water to near steam temperature.
Unique stainless steel internal direct contact vent condenser makes the required vent rate so low it almost eliminates steam loss
Installation is simple and inexpensive
Units are furnished with internal vent condenser and spray valves, inlet control valve, overflow control, thermometer, sentinel relief valve, pressure gauge, gauge glasses and structural support

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