About Us

Wilbur R. (Bill) Carnes began to manufacture and sell his first products near the end of 1939. Bill and his family lived on the east side of Madison, Wisconsin near Lake Monona. His first employee was hired in January, 1940. Prior to starting the company he took a leave of absence from his position as a chemical salesman and developed a method to take metal shavings out of the oil coolants that he was selling. His first products were sump tank cleaning machines that were manufactured for use in machine shops, including the Rock Island Arsenal in Illinois. These machines helped to solve oil filtration problems. Bill would sell a unit and then would build it in his shop, which was located at 2066 Helena Street in Madison. These machines had 100, 150, or 200 gallon tanks that were placed on wheels. They had centrifugal baskets with filters to remove steel chips from the coolant used in milling machines, which allowed the coolant to be used over and over. Later Bill also designed his own vacuum pump for these machines.

We are the Sales arm of Carnes representing all products that Carnes manufacturers. Specializing in Louvers and Security grills for penitentiaries.



Over all Humidifier story


Carnes has introduced a simple, yet very effective, efficient, and informative circuit board feature, that assists in monitoring the humidification operation of the humidifier. Integral to the circuit board is a Microprocessor, true LCD touchscreen, Digital Display and LED indicator lights. In combination, these features maximize energy efficiency, provide enhancements that describe operating conditions and the diagnostic functions assist in simplifying troubleshooting to reduce maintenance costs. These features are available on all Carnes Humidifiers whether for Industrial / Commercial use or Residential applications. Carnes Humidifiers are stand alone units capable of providing 5 to 200 lbs/hr output. The humidifiers use untreated tap water (potable) and convert it to 100% sterile steam in disposable cylinders that eliminate messy, time consuming cleaning to reduce costs.

Commercial Steam Humidifiers


Carnes microprocessor controlled steam humidifiers are designed for commercial, industrial, and institutional applications and feature a true LCD touchscreen control display that indicates specific detail values, such as steam output and humidistat demand. Indicators and LED's show the operational status of all functions and assist in the troubleshooting of the unit should a fault occur. Steam output capacities from 5 to 200 pounds per hour (2.3-90.8 kg/hr) are available.

Light Commercial Steam Humidifiers HRAB


Carnes HRAB humidifiers are designed for light commercial and premier home or condominium applications. Two sizes, five or ten pounds per hour, are available. The units feature special components for quiet, reliable operation and generate pure steam vapor in disposable plastic cylinders. The cylinders capture the solid minerals from water and the cylinder is easily changed in ten minutes after 500 to 2000 hours of operation.

Short Absorption Manifolds


Carnes Steam Manifolds are designed to provide dry steam with rapid absorption in the duct air stream. It achieves this by distributing steam evenly across the face of the duct. The distance needed for absorption is dependent on a number of factors, some of which are air velocity, steam volume, air temperature, and characteristics of air flow in the duct. For minimum absorption distance, the manifold should be located in the warmest air stream of the duct and where fully developed laminar air flow occurs.

  • Stainless steel steam distribution tubes on three inch centers provide extremely short absorption distances
  • Stainless steel manifold with flexible EPDM connections for thermal expansion without use of "O" rings
  • Strong galvanized flanged frame for easy and fast connection to duct
  • Factory assembled for reduced installation costsy promote it here to get customers excited about getting a sweet deal.

Replacement Parts


Information on current and all previous models is available:

  • Installation, Operation, and Maintenance Manuals
  • Replacement Parts Lists

Our largest HSHH

Commercial Humidifier


  • Disposable Cylinders Eliminate Periodic Maintenance for Reduced Maintenance Costs
  • Fast and Easy Installation
  • Reliable Electronic Components for Long Life


  • Circuit Board Utilizes Microprocessor to Maximize Energy Conservation


  • Standard Digital Display and Diagnostic Functions to Simplify Maintenance
  • Capacities up to 200 Pounds of Steam Per Hour Per Unit
  • Utilize any On-Off Humidistat, Carnes Proportional Humidistat or External Signal from DDC Controls
  • Internal Circuit Breaker Protection

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