I'd like to have the time to build some, but alas I have zero free time
since the heater business has grown so much. The key is a battery switch
to totally deactivate the whole system.
Karl

On 2/8/2017 4:47 PM, Stuart MacMillan wrote:
> Nice!  You could probably sell a couple of those. ;-) What's the key for?
> I'll enjoy following the new owner's blog, very nice rig.