Anyone used one of these? I bought an Intellicon HW+ which is a more advanced version of the Beckett Heat Manager. Have not installed it yet but it looks pretty straight forward. Plenty of info on the Beckett site and from what I've gathered Intellicon makes the units for Beckett. They are widely said to save between 10% and 20% on your annual oil consumption. Due to my floor plan I am still burning oil in one of my two zones and hoping to squeeze a little more heat out of a fill up.