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Rotary Heat Exchangers

Rotary regenerative heat exchangers provide a compact, cost effective, and reliable solution for heat recovery in power plant and flue gas desulphurization systems.

With over 80 years of experience throughout the world, Howden is one of the world's foremost suppliers of rotary air preheaters and gas-gas heaters for boiler, FGD and SCR applications.

In this section...

A picture of an air preheater being lowered into positionAir Preheaters
Power boiler applications require highly efficient and reliable air preheaters to ensure optimum boiler performance. Howden has more than 80 years experience of supplying high quality air preheaters for customers worldwide.

Examples of element profilesElements
Howden supplies replacement element baskets for rotary regenerative heat exchangers, (rotating or stationary matrix types), irrespective of original manufacturer. Over the past decade Howden has won more than 2000 contracts to supply replacement elements for boiler air preheaters and FGD gas reheaters...

Gas-gas heater under constructionGas gas Heaters
The Howden rotary regenerative heat exchanger is widely used as a gas-gas heater in wet flue gas desulphurization processes. Prudent selection of materials, together with advanced design features, result in a heat exchanger with high performance and exceptional resistance to the cool moist conditions...


Rotary heat exchanger diagram