STEP 2. Use the estimated cable length calculated above to select the proper de-icing cable from Table B-3. In general, choose the longer
cable if the length you need is between the sizes offered. If the difference is small (less than 5 feet or so), the shorter cable can be
used. You cannot change the cable length by cutting, splicing or altering it in any way.
If ice dams are occurring on roof areas that are significant distance apart, you may want to use a separate cable for each location, rather than
choosing one large cable. Also, if roof areas are large, separate cables for the roof area and gutter should be used.
Table B-3 Easy Heat De-Icing Kits
Catalog Number
ADKS-100
ADKS-150
ADKS-300
ADKS-400
ADKS-500
ADKS-600
ADKS-800
ADKS-1000
ADKS-1200
B. FOR PROBLEMS IN THE GUTTER ONLY
If ice dams are occurring in gutters only, measure the required dimensions (see Figure B-2) and calculate the length of cable needed for each area
listed in Table B-4. Add each "area" calculation to determine the total cable length needed.
Table B-4 Cable Needed for Gutter Only Ice Problems
Area
How to Calculate
Gutter
Length of gutter (B) X 2
Downspouts
Number of downspouts X Length of downspout (E) X 2
ADKS Owner's Manual
L e n g t h
Feet
Meters
20
6
30
9
60
18
80
24
100
31
120
37
160
49
200
61
240
73
21