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Certifications & Compliances



UL LogoMany of WEC's products are UL (Underwriters Laboratories) Listed. When you choose WEC, you know that your heaters have been built, inspected, and tested in accordance with UL standards and backed by a 15 month warranty.


ASME LogoWEC has been accredited with the ASME "U" and "UM" Stamps for construction of Pressure Vessels and with The National Board of Boiler and Pressure Vessels "R" Stamp for the repair and alteration of pressure vessels, and to register vessels under Warren Electric Corporation.

ISO 9001:2000

ISO LogoWEC is an ISO 9001 registered manufacturer. As an ISO 9001 registered company, WEC has established and been audited to meet the high quality standards necessary to meet or exceed the expectations of our customers and continuously strive for excellence.


NFPA LogoOur application engineers and technical specialists review and approve all our designs to the latest edition of the National Electric Code. Only heaters, which pass our rigorous electrical tests in addition to many other inspections, are approved for shipment to our customers.


CEN LogoWEC can provide "CE" conformance for your export products. "CE" safety requirements are required for products sold into the European Union of countries. These requirements declare that the product has been tested and conforms to applicable safety standards and specifications.


Canadian Registration NumberAs an ASME certified manufacturer, WEC is able to obtain CRN (Canadian Registration Numbers) in the Provinces and Territories of Canada to meet pressure vessel requirements of our customers

"Buy America Act"

All our heaters and casings meet the requirements of the "Buy America" Act.