“I use this with a PC700-2 for outdoor reset with a Weil McLain UO-4 that has been converted to gas. The control works as expected except for the post-purge feature.”
“I could not get heat on the second or third floor so I had to go to the furnace and bypass the thermostat for 2 years. Now I know that my thermostat wires were accidentally cut by a contractor 2 years ago. Awesome gadget to monitor at a glance who's doing what within the heat and hot water portion of your family.”
