What You'll Learn From This Post
- There are two heat rules, not one: 68 by day when it's under 55 outside, and 62 overnight no matter what
- Heat season is October 1 through May 31, and hot water is 120 degrees year round
- No heat is a Class C violation with no correction period, which almost nothing else in Class C can say
- What actually happens after you call 311, and the one thing you can file yourself
- What to write down tonight
Every October my inbox fills with the same email. Different subject line, same sentence: my apartment is cold, I called, nothing happened, is this even illegal.
But this year I got one from Mr. Fenstermacher. One of my all time favorite teachers.
Mr. Fenstermacher never explained anything with the thing itself. He explained it with a movie. Hitler and Mussolini were the Emperor and Vader, which holds up. The Treaty of Versailles was the Trade Federation blockade, which mostly holds up. The Louisiana Purchase was Han winning the Falcon off Lando at cards, which does not hold up at all, and I've never forgotten it, which I'm told was the point.
His email, in full:
"It's cold. I called my landlord and got no answer. Is my landlord a Wampa? Does he expect me to sleep inside a Tauntaun?"
Still teaching, apparently.
I wrote back faster than I've ever written to opposing counsel. First line: yes, your landlord is a Wampa, the thing on Hoth that hangs you in its cave for later. Second line: the Tauntaun thing is bullshit, you have rights, and nobody should have to climb inside a dead animal to get through the night. Then, because I owe the man, I explained it the way he would have. For the record, I'm a Trek guy. He's a Wars guy. It's his radiator, so we're going to Hoth, the ice planet.
⚖️ Two Rules, and Only One of Them Has a Trigger
Echo Base, the rebels' hideout on Hoth, had two defenses. The ion cannon only fired when a Star Destroyer came into range. The shield stayed up no matter what was out there. New York's heat rules work the same way, and almost every know-your-rights post online mashes them into one number:
| Hours | Your apartment must be | Outdoor trigger |
|---|---|---|
| 6am to 10pm | At least 68 degrees | Yes. Only when it's below 55 outside. The ion cannon |
| 10pm to 6am | At least 62 degrees | None. Every night of heat season. The shield |
The overnight rule is the shield. There's no outdoor condition on it. It doesn't matter if it's 20 out or 58. Sixty-two, every night, and it's the one people get wrong at 2am while doing the math on whether a second pair of socks is worth getting out of bed for.
Legal-reference sites still claim the overnight standard only kicks in below 40 outside. That's wrong, and don't let a managing agent use it on you.
The excuses, when you push, arrive in the order Vader works through his officers. First the boiler is being looked at. Then it's an old building and these things happen. Then it's the whole block, which it is not. Then the one I've heard out loud in a Housing Court hallway: your thermometer is the defective part. Push once more and the building has filed a complaint about your attitude. Notice the apartment never gets warmer. That isn't a side effect of the sequence. That's the sequence.
📅 Heat Season Is a Defined Window
October 1 through May 31, under the Housing Maintenance Code. Outside it, these numbers go dormant.
HPD keeps a short page at nyc.gov/heatseason with both numbers laid out, and the graphic exists in Arabic, Chinese, Haitian Creole, Russian and Spanish. If you're about to knock on doors in your building, that's what you send.
There's a separate, much newer law about keeping apartments cool in summer. It's the sequel trilogy: it exists, it's canon, and it doesn't pay off for years. I wrote about the summer cooling law and the trap inside it if that's the one you need.
🚿 Hot Water Answers Two Different Questions
Hot water has to hit 120 degrees. Which months? All of them. It isn't a heat-season thing, and HPD's own page says 365 days a year at a constant minimum of 120. Which hours? The code says 6am to midnight.
I used to read those two as a version conflict. They're not. One answers months, the other answers hours, and both are current. And in practice HPD enforces hot water around the clock, which the State Comptroller confirmed when it audited the agency, and if you're standing in a cold shower at 3am the warranty of habitability has no clock on it at all. So document it. Nobody's writing fan fiction. The canon just has two chapters.
🛡️ Why This Has Teeth
No heat or hot water is a Class C violation, the category the city calls immediately hazardous.
Here's what surprised me reading HPD's own violation table:
| Condition | Time to correct before penalties |
|---|---|
| Class C: lead paint, window guards, mold, vermin | 21 days |
| Class C: self-closing doors | 14 days |
| All other Class C | 24 hours |
| Class C: heat and hot water | None |
Every other immediately hazardous condition gets a clock. This one gets none. No countdown, nothing to wait out.
Penalties accrue per day under the Housing Maintenance Code. I'm deliberately not quoting a dollar figure. HPD publishes the schedule, it went up in December 2023, and the old numbers are still all over the internet. If you need the current one for a demand letter, pull it off HPD's page that day, or I'll do it with you.
📞 The Actual Ladder, Not Just "Call 311"
Calling 311 without the rest of this is a quarter of the story. The evacuation order, the way Echo Base would run it:
| Step | What happens | What it means for you |
|---|---|---|
| 1 | You call 311 and get a service request number | Write it down |
| 2 | You can file anonymously | Then the inspector randomly picks an apartment in the building to try, not yours |
| 3 | HPD tries the managing agent, then calls you back | Say whether it got fixed |
| 4 | If not, an inspector turns up unannounced | They can flag anything else in sight |
| 5 | The Class C issues. If it's still not fixed, HPD's Emergency Repair Program sends its own contractor, bills the owner, and liens the building | HPD can also sue the owner directly |
| 6 | You don't have to wait for the transports | File your own HP Action: no attorney, fee waivable, no prior inspection needed. The clerk sets an inspection date and a court date, and HPD is in the case with you |
That's you taking the Falcon out yourself, and here's my walkthrough on representing yourself in Housing Court.
Second front, for rent-regulated apartments: DHCR can reduce your rent for the heat or hot water you didn't get. Its complaint form asks whether HPD found the condition, and an HPD finding makes it a lot stronger. So make the 311 call first. It's the evidence.
💡 What I'd Do Tonight
Buy a real thermometer. The Rebels didn't guess the temperature on Hoth. Neither should you.
Log the time, the reading and the room every cold night, as it happens. Not three weeks later.
Put it in writing to your landlord or super even if you already called. A paper trail beats the memory of a phone call.
Call 311 and get that number whether or not you think anyone's listening.
And the line I'd rather write than read about in January: no oven with the door open, no unvented gas heater, no charcoal indoors. People die that way every winter.
If you've got a log and aren't sure what you're holding, I built a short quiz that sorts it out.
🔥 What Mr. Fenstermacher Was Actually Teaching
The Emperor comparison stuck because of what he said after it: the Senate voted him the powers themselves, on the record, and nobody read what they'd signed. The rules were sitting right there.
Here there are two, and they're sitting right there. Sixty-eight by day when it's under 55 out. Sixty-two overnight, always.
He's got both numbers now. He also has a real thermometer, because I'm insufferable about this.
If your place is running cold tonight, fill out the landlord tenant questionnaire on my intake page and email me your lease. I aim to get back to you within two business days, cuz c'mon. I'll tell you straight whether you've got a 311 problem or an HP Action problem, because those are not the same fight.
This is general legal information, not legal advice for your specific situation.
