I just had a new York Two-stage furnace installed. However, the existing thermostat is a one-stage type. I understand this means when the thermostat calls for heat the furnace kicks on at low heat output, and then if it runs for over 10 minutes it will bump up to high heat output, whereas a two-stage thermostat could be smarter about when to call for high heat output.
The thing is, I'm in a condo, and my furnace is in a storage/utility room below my unit -- I own my unit, I own the utility room, but I don't own the rest of the building. Pulling new wires needed to install a two-stage thermostat would be highly non-trivial and may require negotiations with neighbors for access to their space.
Does anybody know how much of a benefit a proper two-stage setup would deliver as opposed to how my system is configured now? Again, the issue is not the trivial cost of a new thermostat, the issue is the logistical headache of pulling new wires in my condo situation.