The DW Series has been certified by ITS. This certification mark indicates that the product has been tested to and has met the minimum requirements of a widely recognized (consensus) U.S. and Canadian products safety standard, that the manufacturing site has been audited, and that the applicant has agreed to a program of periodic factory follow-up inspections to verify continued performance.
Model DW Series is ETL Listed under file number 3114021, and complies with UL-1978, as well as CAN/ULC-S662.
The Double Wall Ductwork Series has been certified by ITS. This certification mark indicates that the product has been tested to and has met the minimum requirements of a widely recognized (consensus) U.S. Product safety standard, that the manufacturing site has been audited, and that the applicant has agreed to a program of periodic factory follow-up inspections to verify continued performance.
Model DW-2R, DW-3R AND DW-3Z are ETL Listed under file number 1000082319SAT-006 EEV and complies with UL1978 and UL2221 Standards.
DUCT MODEL | INNER DIAMETER (ID) | OUTSIDE DIAMETER | CLEARANCE TO COMBUSTIBLES | CLEARANCE TO NON-COMBUSTIBLES |
---|---|---|---|---|
DW-2R | 8" - 16" | ID+4 | 3/4" | 0" |
DW-3R | 8" - 24" | ID+6 | 3/4" | 0" |
DW-3Z | 8" - 24" | ID+6 | 0" | 0" |