Commercial Products  > Commercial Systems
Ultimate Venting System
Simple. Seamless. Smart.

Eliminate the design guesswork, support runaround, and limitations of a traditional, "pieced-together" venting system. The ENERVEX Ultimate Venting System (UVS) is the industry's only integrated chimney venting solution for boilers and water heaters with a UL system listing, combining all the products and accessories you'll need to complete a project:

  • Mechanical Draft System (fan-based)
  • Modulating Overdraft Control System (damper-based)
  • Modulating Combustion Air Supply System
  • Economizer (Vortex Heat Recovery System)
  • PowerStack Chimney System

All components are modular, yet built to work together seamlessly. No need to contact a chimney supplier, draft fan supplier, economizer supplier, and combustion air supplier separately.

  • Flexible, one-stop design eliminates guesswork
  • Guaranteed fit for all parts & components simplifies design
  • Seamless fittings & transitions make installation easy
  • Single point of responsibility saves time, hassle & cost
  • Highest-quality products means no inspection issues
  • Fit for any type of building, application or appliance

  • Eliminate the 'blame game'
  • Less coordination & administration
  • Design flexibility & guaranteed fit for all parts & components
  • Lower cost, easier installation, shorter lead times
  • Safety & compliance with code regulations
  • Highest-quality products with less risk
  • Space savings & aesthetics


UVS Ultimate Venting System with chimney, mechanical draft fan, waste heat recovery, and controllers
PowerStack Chimney & Grease Duct System—conveys gases, particles, fumes, smoke, grease, and products of combustion
Chimney & Grease Duct System

PowerStack is a "Universal Venting System". It is a state-of-the-art, multi-application single or twin-walled exhaust product designed to convey gases, particles, fumes, smoke, grease and products of combustion.

RSV Chimney Fan – mechanical draft fan used to vent boilers and water heaters
Chimney Fan

High-temperature mechanical draft fan designed for termination mounting. For vertical or horizontal installation. Used with condensing or non-condensing heating appliances.

IPVB-EC Inline Power Venter—for undersized chimney systems with draft problems
Inline Power Venter

A mid-range high-temperature mechanical draft fan designed for inline mounting. For vertical or horizontal installation. Used with condensing or non-condensing heating appliances.

TDF Power Venter—rugged high-temperature exhaust fan
Power Venter

Ruggedly built high-temperature exhaust fan designed for inline mounting or termination mounting for small and large applications. For vertical or horizontal installation indoors or outdoors.

EBC 31 Modulating Pressure Controller—multi-use draft and pressure controller with integrated web server and remote access
Modulating Pressure Controller

A sophisticated multi-use draft and pressure controller with integrated webserver and remote access used with fans and dampers to monitor and maintain a constant pressure in commercial boiler and building applications.

VHX Economizer Double Row—two-stage flue gas economizer
Economizer - Double Row

A highly versatile and efficient double-row flue gas economizer that can help you conserve energy and save 10+% on fuel annually.