Our apartment is heated by a natural gas burner (the burner itself is inside the unit) that vents in two directions: one vent into the bedroom and a second (about 3x the area) into the rest of the unit. The bedroom vent can be partially closed but the other set of vents can't.
Question 1: It drives me nuts that if we want to keep the bedroom tolerably warm at night, we have to heat up the rest of the apartment too. Is there any safe, reasonable way to block off some of the vents? The gas is burned right in the apartment, so I'm concerned that partially blocking them off might encourage carbon monoxide production.
Question 2: I'd love to install a programmable thermostat, but the wiring is so archaic that standard models don't seem to be compatible (and the landlord really doesn't want us to mess with it). Does anyone have experience with those "thermostat setback" devices that sit underneath the thermostat and warm it up, tricking it into producing less heat while the device is on? Is there a model you'd recommend?