SRE Series – Stack-Mounted Condensing Economizer

SRE Series is a high-efficiency condensing economizer designed to capture latent and sensible heat from flue gas to maximize overall boiler system efficiency. Installed directly in the stack, it uses corrosion-resistant stainless steel heat transfer surfaces and is ideal for systems firing natural gas or propane. SRE units recover exhaust heat to preheat make-up water or process fluids, increasing thermal efficiency by up to 10% or more. With a compact vertical configuration and optional stainless steel condensate neutralization, it’s well-suited for both retrofit and new steam or hot water boiler systems.

Specifications:

Application: Steam or hot water boilers

Installation: Stack-mounted, vertical design

Fuel compatibility: Natural gas, propane

Efficiency gain: Up to 10% improvement

Heat recovery: Sensible + latent

Materials: Stainless steel heat transfer surfaces

Flow rate range: 10–100+ GPM (model-dependent)

Condensate handling: Optional neutralization system

System type: Condensing (below dew point)

Max operating temp: ~200°F (93°C) inlet