The current Ecobee put in takes advantage of the PEK because I think there are only 4 or five wires heading through the thermostat on the furnace but I'm able to pretty simply incorporate much more wires if needed to get two levels (thermostat is nearly immediately over the furnace https://ozempicreviews39517.topbloghub.com/42149935/the-single-best-strategy-to-use-for-copyright-reviews