EcoFlex90+ Modulating Fan-Powered Economizer
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90% Efficiency without Boiler Replacement 3911007 TR U E GRE EN SOLUT IONS NEW Patent Pending EcoFlex 90+ System Modulating Fan-Powered Economizer ®

- Because They Are Your Btus EcoFlex 90+ System - a packaged modulating fan-powered economizer - n^^K the single design that combats all the chal- lenges in the typical economizer. It opens the energy recovery up to practically any combustion appliance application. With the EcoFlex 90+ System the designer can now view the application as a complete "boiler plant" as the full load to work with, instead of one economizer per boiler. And the "boiler plant" can consist of a combination of boiler types such as forced draft boilers and atmospheric water heaters that utilize a single modulating...

The EcoFlex90+ System concept is a huge leap forward for the energy and cost conscious engineer and building owner. It is possible to install the heat recovery unit in virtually any boiler system - new installation or retrofit, single or multiple appliances, modulating or on-off boilers, condensing or non-condensing boilers. System consisting of multiple atmo- spheric water heaters. The EcoFlex 90+ System is installed inline in the vertical section - but could also have been installed in the horizontal section. System consisting of an existing forced draft boiler and an atmospheric water...

Energy and Operating Savings - Ultra Short Payback with Great ROI! There are many ways of taking advantage of the EcoFlex 90+ System's ability to recover energy, save installation cost, and reduce emissions. Below are examples of possible savings. The two typical system examples both consist of 2 x 1,500MBH and 2 x 750MBH atmospheric boilers - 2 with draft hoods and 2 with barometric dampers. The systems operate 4,000 hours per year - 600 hrs at full capacity 2,000 hrs at 50% capacity and 1,400 hrs Chimney Installation This example shows a retrofit installation of an EcoFlex 90+ System. The...

The following tables are examples of the EcoFlex 90+ System's perfor- mance when used with Natural Gas. The tables below are based on a boiler system with a nominal effiency of 86%, a flue gas temperature at the economizer inlet of 290°F and a water flow of 20 GPM. 1) Determine your max. exhaust air flow (ACFM) from your system's max. Btu input, 2) go to the red (copper) or blue (Steel) curve to read the corresponding boiler system efficiency (left) after the EcoFlex 90+ System is added, 3) read the corresponding energy recovered (right) and 4) based on the area limited by the dashed lines,...

System Examples The diagrams below show some of the typical applications where the EcoFlex 90+ System can be utilized: Preheating Hot Water Return Preheating Boiler Make Up Water Preheating Steam Boiler Feedwater Preheating Circulating Make Up Water Feedwater Tank To Existing Boiler Feed System © Pump X Gate Valve Pressure relief valve 2 year factory warranty 10 year warranty against corrosion Contact ENERVEX Next time you design a boiler or water heater system for a project, contact us for a non-binding venting design proposal. In most cases we can offer you a better and less expensive...