01HeatSponge
The starting point
Industrial products / Finned-tube economizers
Five models.
One serviceable philosophy.
BOSS, MAGNUM, SUPER, TITAN and now COLOSSUS give engineers a broader starting range for conventional and condensing steam boiler heat recovery.
Explore the models
The model range
Choose the geometry for the duty.
The best fit depends on more than boiler horsepower. Exhaust flow and temperature, feedwater conditions, pressure drop, available space and service access all influence the final selection.
02HeatSponge
A step up in recovery
MAGNUM
A midrange choice when the application benefits from more heat transfer surface than BOSS. Final selection depends on flue-gas and water-side conditions.03HeatSponge
More recovery potential
SUPER
An expanded heat-transfer arrangement for projects that warrant a greater recovery opportunity. Evaluate it against available space and allowable pressure drop.04HeatSponge
High-flow applications
TITAN
Built for substantial boiler exhaust flows and demanding industrial duties, with the same focus on accessible inspection and individually serviceable tubes.05New to the range
The newest addition
COLOSSUS
COLOSSUS extends the standard HeatSponge model selection for demanding industrial applications. Its configuration is engineered to the specified gas flow, heat sink, pressure limits and site constraints.Model descriptions are a starting guide. Performance and construction are confirmed for each specified application.
Made to be maintained
Heat recovery you can get back into.
Inspection and repair belong in the design conversation from the beginning. Accessible internals help operators address a tube issue without treating the entire economizer as a sealed, disposable component.
Open the rear door.
A removable rear door provides access to the inside of the unit for inspection and service.
Replace individual tubes.
Compression-fit tubes are designed for individual replacement, avoiding ASME code welding during the specified replacement procedure.
Specify for the conditions.
Carbon and stainless steel options for tubes, fins and casing support different water, exhaust and condensation conditions.
Plan the transitions.
An insulated, one-piece casing with integrated inlet and outlet gas transitions can simplify the installation arrangement.
Engineered for your boiler room
Recover heat in the right stages.
Conventional economizers use available boiler feedwater or another suitable heat sink to capture sensible exhaust heat. Where cooler water and the application permit, a condensing stage can recover additional energy from water vapor in the flue gas.
We can evaluate two-stage arrangements and the industry-exclusive Type III configuration for deeper multistage condensing recovery. Material selection, drainage, water conditions and pressure drop are evaluated with the operating profile.
Standard designs are built to ASME Section VIII; Section I construction may be specified where the application requires it. Confirm the applicable code and certification requirements during selection.
Technical downloads
See inside the original four models.
The existing cross sectional drawings remain available. Request a project-specific COLOSSUS drawing for its proposed arrangement.
Start with the application
Tell us what the boiler is doing.
Share the boiler size, operating profile, exhaust conditions, water temperatures and installation envelope. We will help compare the appropriate model and recovery stages.