Frost Sentry Trace Heater - Does it work

[Tom Telford]

Hi

Has anyone got any experience of the Frost Sentry Trace Heater? - See video below


http://www.youtube.com/watch?v=5nlnQbMqMYc

I want to fit trace heating but my condensate pipe passes through an external concrete step to reach the drain so fitting an element around the pipe in impractical.
The Frost Sentry Trace Heater fits inside standard condensate pipe so looks ideal but does it work?


Any help would be much appreciated