A versatile and efficient single-row flue gas economizer for applications with tight space. Can help you conserve energy and save 10+% on fuel annually.

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When properly implemented, heat recovery ventilation systems such as the single-row, single stage ENERVEX Vortex Heat Exchanger (VHX-SR) can help you conserve energy and save 10+% on fuel annually.

The VHX-SR is a highly versatile and efficient flue gas economizer for single OR multiple boilers of atmospheric, fan-assisted, or forced-draft design. Its fully packaged, lightweight, round configuration, integrated modulating bypass, and efficient hybrid microchannel/plate heat exchanger allows extremely high heat transfer capability and low flow resistance.

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• Use with ANY boiler type, baking oven, process oven etc.

• Vertical or horizontal installation 

• 316L stainless steel housing & heat exchanger

• Condensing & non-condensing applications with no modification

• Compact and lightweight to save space

• Heat Modules can act as individual liquid circuits

• Highly configurable

• Integrated bypass eliminates overheating of heat exchanger

• Integrated flexible tube connections

• Also available in 2-stage version - VHX-SRS

Available Documents:

Installation Manual - VHX Single Row

Vortex Heat Recovery Brochure

Warranty Terms for VHX Economizer

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

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When properly implemented, the double-row ENERVEX Flue Gas Economizer VHX-DR can help you conserve energy and save 10+% on fuel annually.

This is a highly versatile and efficient flue gas economizer for single OR multiple boilers of atmospheric, fan-assisted, or forced-draft design. Its fully packaged, lightweight, round configuration, integrated modulating bypass, and efficient hybrid microchannel/plate heat exchanger allows extremely high heat transfer capability and low flow resistance.

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• Use with ANY boiler type, baking oven, process oven and more

• Vertical or horizontal installations

• 316L stainless steel housing and heat exchanger

• Non-condensing & condensing applications with no modification

• Compact and lightweight to save space

• Heat Modules can act as individual liquid circuits

• Highly configurable

• Integrated bypass eliminates overheating of heat exchanger

• Integrated flexible tube connections

• Also available in 2-stage version - VHX-DRS

Available Documents:

• Installation Manual - VHX Double Row

• Product Information - HMM

• Vortex Heat Recovery Brochure

• Warranty Terms for VHX Economizer

Boilerroom Equipment, Inc (BEI), a division of Thermal Energy International, engineers and manufactures ASME pressure vessels for many different industries.

We are best known as the innovators behind the HeatSponge brand of boiler economizers, the most modern steam boiler economizer available to global industry today.  Our innovations are unmatched:

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Compression-fit tubes for ease of maintenance with no ASME code welding required

Removable rear door for full access to inside of unit

Tubes, fins, and casing available in carbon and a variety of stainless steel materials for maximum flexibility in application

Capable of both conventional and condensing operation

Inlet and outlet gas transitions integrated into the one-piece fully  insulated casing provides for fast installation

We also engineer and fabricate wet and dry steam accumulators.

Offering:

Steam Boiler Economizers

Hot Water Boiler Economizers

Wet Steam Accumulators

Dry Steam Accumulators