I’ve had issues with ice building up in the gutters for 15 years. I Installed a couple of 100ft heating cables in my main trouble areas and with one decent snowfall in the books, they did the job as advertised.
A very nice kit overall. Easy to install (especially if you are a ladder monkey) with clear and concise directions. The kits came with more than enough shingle clips and cable spacers - which was very welcome (and so rare these days). I installed 2 sets – in the gutters, downspouts and on the roof - to solve an ice dam in a shady alcove.
I recently purchased a 100 foot deicing cable. It was easy to install and it kept my eves trough clear. I would recommend this product to anyone.