HT has always given utmost attention to the quality of its heaters, and is one of the first companies of the sector to achieve the ISO 9002 homologation in 1993.
Other certifications were achieved as a consequence for specific product types, namely VDE, LCIE and UL, whilst the company itself is proud of its ISO 9001:2008 homologation (2010).
You can download our certification documents by simply clicking the Adobe®Acrobat® icon.
|Certificate ISO 9001:2008||Certificate I-90|
|Certificate UL CL1 I-9||Certificate I-91 I-92|
|Certificate UL HT 95||Certificate PT 010|
|Certificate UL PTC CL1 PT 95||Certificate PT 011 PT 012|
|Certificate UL ST1 - ST2|