Hi, I'm looking to buy a 2 family in the near future and house hack it by living in the 2 BR unit, leaving the 3 BR unit to rent.Right now I am trying to estimate on utilities, and this is proving tough for me: all of my prior living situations have been with roommates that have had some big elements of waste in my opinion: roasting thermostat heat in a drafty house, forgetting to turn lights and appliances off.

Nest thermostat to keep temperature within acceptable range.5.

He spends two minutes looking at the thermostat, doesn't even go up in the attic, and says "there's nothing I can do".

He changed out the thermostat without asking and caused a heating problem I had to fix ($200) and refused to pay for the repair that he caused, he got angry and I chose not to fight him on it.

Unfortunately i don't have costs for each bathroom and kitchen because the price we paid for labor was for everything in the condo.Didn't have to do anything with the windows because that was covered by the HOA; HVAC was working fine already and we just updated the thermostat w/ a Nest one; plumbing was fine; electrical was fine as well but we did add wires for the TV and stereo system. 

All that was done was the wires for the ceiling heat were unconnected from the thermostats. 

I just had a tenant move in the beginning of this month, and the tenant has sent a long list of requests:1) Some of the blinds in the kitchen are broken and don't work.2) The front door is difficult to open and lock.3) One of the bathroom doors does not close correctly so it can't be locked.4) Vanity cabinets in the bathrooms are rusted.5) Light fixture for stairs is broken with loose glass falling out.6) Replacing all lights with LED to lower electric bill.7) Thermostat is broken with no hot air, only cold.8) Plug for the vent/lights over the range is broken that needs to be replaced with wires hanging out so you get shocked when you plug it in.9) The tub/shower for the master bath has no water coming out.10) But, everything else is great!!!

Heat would not work with thermostats (all new), and I told him about it (nicely) and he said that if I was not happy with his work, he would simply return me the labor costs the next Saturday.

There is only one gas meter BUT  Unit A is the main unit and is on the first floor, they have a thermostat in their unit and the furnace is located in the basement.

I want something to teach me what to do when the manual states "call a professional HVAC technician" Most of my (condensing) furnace service calls end up being fixed by replacing a pressure switch, thermostat,  or controls board.