Thermostat with Password and Adjustable Heat Delay ?
I own a triplex rental property which has a single furnace (forced-air, gas) to heat all 3 units. The single thermostat is located in Unit A and so the temperature in this unit dictates how all units are heated. A quick and dirty test reveals Unit B is 0.5'c warmer than Unit A and Unit C is 1.5'c warmer than Unit A.
Ignoring the headaches of the temp differences among Units i'm looking for a replacement thermostat with the following features:
x Lockable - since the thermostat is located within a rental unit i like to have it password protected
x Heat On Cycling Limitation - I want to control how often the furnace is activated; i find my furnace is signaled 3 to 4 times an hour. I understand when it gets cold but is there a thermostat allowing me to set how low below the limit before it activates on again. I mean if i set the temp to be 22'c, it warms up to 22'c, but it wont take long before it falls to 21.9'c and signalling begins. I want to have the thermostat delay to maybe 21.5'c before signalling the furnace OR maybe heat to 22.5'c and then wait till temp falls to 22.0'c. My existing thermostat shows 10th place decimals but it heats the place to the exact value set and no more and so reactivates every 3 or 4 times per hour.
Any recommended thermostat? I'm open to Smart Thermostats. Was considering writing an app to take in wifi signalling of apartment temps and then control Unit A's thermostat appropriately.