How to Compromise on the Thermostat With Roommates

You set it to 72. You come home from class and it’s 66 and your roommate is wearing a hoodie inside. You set it back. Two hours later it’s 78 because they turned it up and forgot. The utility bill hits and it’s $180 and nobody wants to talk about why.

How to compromise on the thermostat with roommates: agree on a fixed range everyone can live with (68–74°F is the safe zone), pick a default for when nobody’s home, and split the bill by lease share so the person who runs it coldest isn’t quietly costing everyone else money.

The thermostat war is really three fights stacked. Handle them in order.

Step 1 — Pick a range, not a number

You will never agree on one exact temperature. Nobody does. What you can agree on is a range.

The comfort zone most people can live in without complaining is 68–74°F. Anything colder than 68 and someone’s shivering. Anything warmer than 74 in summer and someone can’t sleep. Pick a floor and a ceiling, write them on the thermostat with a sticky note, and hold them.

Inside the range, whoever’s home can set it wherever they want. Outside the range, nobody touches it. That single rule kills 90% of the fight because it takes personal preference off the table without picking a winner.

If you have a smart thermostat (Nest, Ecobee), lock the range in the app. Removes the temptation to nudge it “just five degrees.”

Step 2 — Pick a default for when the apartment is empty

Cranking the AC to 65 all day so it’s cold when you get home is the single biggest driver of a bad summer utility bill. Same in winter with heat.

Agree on an “away” setting: 78°F in summer, 62°F in winter, when nobody’s home for more than a couple hours. Schedule it on the smart thermostat so nobody has to remember. If you have a manual thermostat, whoever leaves last sets it to away.

Yes, it’ll be warm/cold for 15 minutes when you get home. That 15 minutes saves you $30–$60 a month depending on your climate. Everyone benefits, everyone pays less.

How do you split the utility bill fairly when one roommate wants it colder?

Default is: split the electric or gas bill by rent share, same as everything else. Everyone lives here, everyone pays for climate control.

Two situations change that.

One roommate works from home while others don’t. They’re running heat/AC alone for 8 extra hours a day. Fair adjustment is a small weighted split — say 40/30/30 instead of even thirds. Talk about it up front, not after a $220 August bill lands. We break down the same logic in how to split the internet bill when a roommate works from home.

One roommate insists on running it way outside the agreed range. If someone wants 62°F in summer and won’t compromise, they cover the difference between a normal-month bill and the cold-month bill. Pull last month’s bill, agree on a “baseline” number, they pay the delta.

Both should be talked about before the bill, not after. In writing. Group chat counts.

What if a roommate keeps changing it back?

You set it to 72, an hour later it’s 66 again. Every day. That’s not a preference difference, that’s someone ignoring the agreement.

Say it plainly, once: “We agreed on 68–74. It’s been getting set to 65 most days. Can we stick to the range?” Screenshot the group chat where you originally agreed.

If it keeps happening, lock the smart thermostat with a passcode nobody’s shared, or physically put a piece of tape over the manual dial with the agreed range written on it. Petty, but visible, and it forces a conversation instead of a silent nudge every afternoon.

The point isn’t winning the thermostat. It’s not paying a $60 surcharge every month because one person can’t compromise.

homies takes the thermostat fight out of the group chat

homies logs the agreed temperature range and away setting in your shared house rules, so nobody can claim “I didn’t know.” Utility bills upload straight into the split view — even thirds, weighted for work-from-home, or whatever your house agreed on — and the app tracks who’s actually paying on time. AI mediation drafts the “hey it’s been 65 in here again” text so it doesn’t come out sideways.

rooming, minus the drama. Join the waitlist at joinhomies.app.