About Us

YOUR SUCCESS IS IMPORTANT TO US

Since 1968 we have specialized in making engineered heat tracing systems and we are ready to put our experience to work for you.

We Started By Building A Better Product

Delta-Therm was started in 1968 by two innovative electrical engineers Jim VanEffen and Terry Terhune who met and became friends while working for Nelson Heat Tracing Systems. After listening to customer concerns they knew they could build a better product. In 1969 they patented their unique mineral insulated cable termination and designed their own snow melting system control. In 1970 these were the first snow melting products ever to become UL Listed.

Family Operation

By 1988 Terry had retired and Jim was ready to retire when he met Ed and Eileen Slagis. Ed had been a mechanical engineer for Corning Glass and Ritter Midwest, and Eileen was a religious education director for the Chicago archdiocesis. Eileen met Jim through friends in the archdiocesis at a time when Ed was ready to start a business.

For over 3 years Ed worked side-by-side with Jim to learn the ins and outs of heat tracing while Eileen helped with the books on the weekends. Jim remained a part-time fixture at Delta-Therm for many years lending his expertise to our employees and customers. His assistance helped Ed and Eileen grow the company significantly and we credit him for much of our success.

By 2003 Jim, Ed and Eileen retired. Tom Slagis and Ada Cryer, two of Ed and Eileen's children manage the business like Jim before them, Ed and Eileen come in to lend their expertise and help train new employees on a regular basis.

Our Key Management Is Here To Help You

Our manaagment team consists of managers with a minimum of 10+ years experience at Delta-Therm. The team includes: Tom Slagis (President), Ada Cryer (Customer Service & Marketing Manager), Ed Witte (Engineering Manager), Tom Rentner (Production Manager), Dorothy Rosario (Accounting Manager), and Steve Rhode (I.T. Manager).

What You Can Expect from Us

You'll have our friendly and ready expertise to help you with component selection, engineering, and installation.

First time customers can look forward to having us answer our own phone (800) 526-7887 between 8:30 and 5:30 pm C.S.T. If you leave a message or e-mail us, we'll contact you within 24 hours, if not sooner.

Quality Products Built For Contractors

Delta-Therm holds patent #3,657,513, issued in 1970 for mineral insulated heating cable assemblies. Our patent is for a proprietary termination manufacturing process that allows you to customize cold leads lengths so that you can reach an indoor junction box in a dry location.

All Delta-Therm products have been tested and listed by one or more of the following nationally recognized testing labs UL, CSA, and FM Approved.

Installation and Technical Support To Help You Succeed

You will find detailed illustrative installation guides with color coded wiring diagrams included with your order, and we can also prepare engineered drawings of your system layout.

In the rare occassion that you run into a problem on the job-site please contact us immediately at our corporate office (800) 526-7887 and we'll do our best to help you trouble-shoot the installation. You can also contact your local authorized Delta-Therm sales office.

Responsive Customer Service

You can call our customer service department at (800) 526-7887 between the hours of 8:00 am - 5:30 pm C.S.T. and we'll do our best to help you. You can also contact your local authorized Delta-Therm sales office.

Your Local Authorized Engineered Sales Offices

We are located in Wauconda, IL and you can use our customer service deparment. If you prefer to work with your local engineered sales person you will find their contact information in the sales rep section. The sales agencies representing Delta-Therm products all specialize in electrical products and many are electrical engineers.

Affiliations

I.E.E.E.(Institute of Electrical and Electronics Engineers)
N.F.P.A. (National Fire Protection Agency)
R.P.A. (Radiant Panel Association)
A.S.H.R.A.E. (American Society of Heating, Refrigeration, and Air Conditioning Engineers)
A.I.A. (American Institute of Architects)
UL and CSA Testing Procedures Committees

Major Milestones

2008
We introduced our 2FW dual conductor floor warming cable.

We became CSA certified as a custom panel manufacturer.

2007
Our entire mineral insulated heating cable assembly product line was CSA certified.

We offer TraceMate and MasterTrace controls for pipe tracing applications.

2006
UL Listed LNR Panels (low noise relay) are added to reduce noise for residential floor warming projects.

2004
MPS single-point snow melting and roof deicing control was added to our snow and ice melting product line to help our customers lower material costs.

2003
Ed and Eileen retire, handling control of Delta-Therm to two of their children Tom Slagis and Ada Cryer.

2002
SMC automatic snow melting and roof deicing control line is redesigned and renamed the DTC product line.

2001
40-ton snow melting bath units for parking lot areas are added.

1999
Delta-Therm is selected by Cranes Chicago Business as one of Chicago's 99 leading manufacturers.

1996
delta-therm.com website is launched.

1995
Snow melting mats are CSA certified and added to our product line.

1994
We purchased PowerTrace, a leading manufacturer of constant wattage cables, and add PT and PF cables to our pipe tracing product line.

1993
We are become a UL Listed Custom Panel Shop and expand into a 10,000 square foot facility with a loading dock and testing lab.

1992
We move into a 4,500 square foot facility.

1989
Self regulating cables for pipe tracing and roof deicing applications are added to the product line.

1988
Ed and Eileen Slagis purchase Delta-Them.

1971
Delta-Therm receives the first UL listing ever granted for snow melting products.

1970
Patent #3,657,513 is issued to Delta-Therm for mineral insulated snow melting and pipe tracing cable assemblies.

1969
Delta-Therm founded by Jim VanEffen and Terry Terhune.