What about people that pay utilities on your units... do you have digital thermostats with a floor and ceiling for temps?

My thought would to also include all the manuals for appliances, thermostat, water heating re-lighting instruction, and possibly even copies of the move-in property condition photos.

Also, you'd have to account for the cost of two new boilers, installing electric, individual thermostats, running separate gas lines to each unit, etc. as well.

. * I've added wifi and smart devices (thermostat, keyless locks) to help manage and be touchless.* Items like wifi, desks, smart TVs, blackout curtains are important to those interested in my units.* I get interest from furnished finder but all my bookings so far are via Airbnb.

After that, use a channel manager (IGMS, Your Porter, Smartbnb) for automated guest messaging, dynamic pricing software for pricing (Beyond Pricing, Pricelabs), a digital guidebook (Touch Stay, Hostfully), install a camera on the exterior to monitor activity (in case you rent to 6 and a group of 15 shows up), use a WiFi thermostat and possibly a keyless entry lock on the front door.

If it takes time to get to 68 then maybe you should leave the thermostat above 68F. 

It's too cold here for fruit, but I get fruit, anyway, by warming the trees with christmas tree lights as soon as they start to bloom.I have 3 raised beds (my knees won't get down on the ground to do weeding) and I grow tomatoes, strawberries, garlic, onions, lettuce, and at least one zucchini.In order to get ripe tomatoes, I have pvc hoops over the tomatoes and at the end of the season, I fasten greenhouse film over the hoops and use spotlights and a greenhouse thermostat to keep the plants warm enough to ripen the tomatoes.Because I have to use electricity in order to get fruit, it ends up not being cheap.

Do a search on Amazon for "Rovate Complete Thermostatic" and you'll see a bargain-brand one that you can put in cheap.

Its gotta be a dual zone system, then the FAU actually operates as 2 separate HVAC systems. 2 thermostats etc.

This list will probably grow, but I've used this list so far:During cooler-weather months, never set the thermostat below 55 degrees Fahrenheit.