A companion to the air conditioning habitability guide, and part of the maintenance documentation pillar. Heat is one of the few habitability questions with a nearly universal answer: a landlord almost always has to provide it. This is where heat is required, the minimum-temperature rules cities set, how fast you have to fix a failure, and the dated records that keep a cold snap from becoming a legal problem.
It is the first hard freeze of the season, the furnace just quit, and the tenant’s text says the apartment is 52 degrees and dropping. Before you decide how fast to move, start with the question landlords ask every fall: is a landlord required to provide heat?
In nearly every state, the answer is yes. Heat is one of the core essentials under the implied warranty of habitability, the legal duty to keep a rental fit to live in. This is exactly where heat parts ways with air conditioning. Most states do not require you to provide cooling at all, but almost all of them require you to provide heat, because cold is treated as a genuine danger to health and safety rather than a matter of comfort. That single distinction drives everything else: the timeline is shorter, the tenant’s remedies are stronger, and the lease cannot get you out of it. This guide covers where heat is required, the minimum-temperature rules, how fast you have to respond, and the records that decide the dispute when a heating system fails in the cold.
Pillar guide · ~9 min readThe short answer: is heat required?
Strip it down and there are two layers, and unlike air conditioning, both usually point the same direction.
- Providing it: almost always required. In nearly every state, a working heating system is part of the warranty of habitability. A unit you cannot heat in cold weather is not legally livable, so renting one without functioning heat is generally a violation from day one.
- Maintaining it: required, and on a short clock. Providing heat is not a one-time box to check. You have to keep the system working, and when it fails in cold weather you have to fix it fast, because no heat in winter is treated as an emergency rather than a routine repair.
- The lease cannot waive it. You cannot contract out of the warranty of habitability. A clause saying heat is “not guaranteed” or shifting the whole heating obligation to the tenant does not hold up in most states.
That is the mirror image of the air conditioning question, where the default is that cooling is optional. With heat, the default is that it is mandatory, and the interesting questions are how warm, how fast, and how you prove you responded.
Why heat is required but air conditioning usually is not
Nearly every state recognizes an implied warranty of habitability, the landlord’s baseline duty to provide a unit that is fit to live in. Heat is one of the classic named essentials on that list, alongside running water, hot water, working plumbing, functioning electrical, and a weatherproof structure. The reasoning is old and simple: a person can freeze to death in an unheated home in winter, so heat is treated as a survival necessity. That is why habitability law and the repair-timeline rules both treat no heat as one of the clearest emergencies there is.
Cooling never made that list in most of the country. For most of legal history, air conditioning was considered a comfort rather than a survival need, so habitability statutes were written to require heat but not cooling. The practical upshot for you as a landlord is that these two systems live under different rules even though they are both climate control. Nobody is going to fault you for a unit with no AC in much of the country. A unit with no working heat in January is a different story almost everywhere.
Where heat is required, and how warm
The requirement to provide heat is nearly universal, but the specifics of how warm and when are usually set at the state or city level. This is where landlords who check only the state statute can miss a stricter local rule.
| Situation | Is heat required? | Notes |
|---|---|---|
| Standard occupied unit, cold-weather climate | Yes | Core habitability item in nearly every state. |
| City with a minimum-temperature ordinance | Yes, to a set number | Often around 68°F daytime, lower overnight, during a defined heating season. |
| Lease tries to disclaim heat | Yes, clause does not control | You cannot waive the warranty of habitability. |
| Tenant pays the heating utility bill | Yes, landlord still owns the system | Who pays the fuel is separate from who provides the equipment. |
| Unit vacant between tenants | Usually not to occupancy standard | But you still protect the property from freeze damage. |
| Tenant damaged or disabled the heat themselves | Landlord repairs, may bill tenant | Cause matters for who pays, not for whether it gets fixed. |
Two of these rows do most of the damage in real disputes. The minimum-temperature ordinance is the one landlords miss, because these rules are frequently municipal. Many cities define a “heating season” by calendar dates, commonly running from around October into April or May, and require the landlord to make it possible to keep the unit near a set daytime temperature, often about 68 degrees, with a lower overnight minimum. Check your city and county housing or property-maintenance code, not just the state landlord-tenant act, because the exact numbers and dates live there. The utility-bill confusion is the other one, and it deserves its own explanation below, because plenty of landlords wrongly believe that a tenant paying the gas bill lets them off the hook for the furnace.
Who pays the heating bill versus who provides the heat
This trips up more landlords than any other part of the heat question, so it gets its own section. Two different obligations get tangled together:
- Providing and maintaining the heating system. This is the landlord’s duty, and it does not move. The furnace, boiler, baseboard heaters, or whatever the unit uses are part of what you rent, and keeping them working is on you.
- Paying for the fuel that runs it. This is set by the lease and the utility metering. It is common and perfectly legal for the tenant to hold the gas, oil, or electric account and pay for what they use.
The mistake is treating the second as if it cancels the first. It does not. A tenant paying the gas bill does not make a broken furnace the tenant’s problem to fix. And using heat as leverage, shutting it off or refusing to restore it to pressure a tenant over rent or anything else, is an illegal self-help tactic in nearly every state and can expose you to serious penalties. The clean setup is to spell out the utility responsibility in the lease, keep the heating equipment squarely as the landlord’s to maintain, and note the heating system’s type and condition in the move-in condition record so there is a dated baseline of what you provided and that it worked on day one.
No heat is an emergency, so the clock is short
For most repairs, the standard is a “reasonable time,” and reasonable can stretch to days or a couple of weeks for something minor. No heat in cold weather does not get that grace. It sits at the emergency end of the scale, right next to no running water, a gas leak, or a sewage backup, and the reasonable-time standard shrinks accordingly, often to hours or a day or two rather than a week. The emergency versus non-emergency maintenance guide walks through how to triage the call, and a heating failure during a cold snap almost always lands on the emergency side.
The response the law expects scales with the danger. A brief outage in mild fall weather with a healthy adult in the unit is not the same as a furnace that dies during a hard freeze with an infant or an elderly tenant inside. The colder it is and the more vulnerable the occupants, the faster you have to move. When a full repair will take time, the expectation is that you provide a safe stopgap, such as space heaters, and communicate a clear timeline rather than going quiet. Let a no-heat report sit and you open the door to every habitability remedy the tenant has: repair-and-deduct, rent withholding where the state allows it, a code-enforcement complaint, and in extreme cases a constructive-eviction argument that the unit was made unlivable. The rent-withholding and habitability guide covers what tenants can legally do when a landlord goes silent, and it is worth knowing before you let a heating repair drift.
The real fight is speed, and it turns on documentation
Here is how the bad version plays out. The furnace fails on a Friday night. The tenant reports it. You are busy, the HVAC company is slammed with cold-weather calls, and the weekend slides by. By Monday the tenant has sent a written notice, bought their own space heaters, and is talking about deducting the cost or calling the city. Now the argument is whether you responded reasonably, and the mediator or judge asks one question: when did they report it, what did you do, and how fast?
If your answer is a story, “they told me and I called somebody right away,” you are exposed, because the tenant has the texts, the timestamps, and a 52-degree apartment. Because heat is a core habitability item, a documented failure you let sit can cost far more than the repair, and where vulnerable occupants and dangerous cold are involved it can escalate quickly. What protects you is not a good memory. It is a small, dated stack of records:
- The report, timestamped. When the tenant told you, in writing, so the clock is fixed and you can show exactly how fast you moved.
- Your acknowledgment and plan. A quick written reply confirming you received it and are getting a tech out. This alone defeats the “you ignored me” claim.
- The stopgap. If a full repair will take hours or a day, a note that you provided space heaters or another safe interim fix shows you took the danger seriously.
- The vendor’s diagnosis. What was wrong, dated, from a licensed technician. This also feeds any repair-versus-replace decision on an aging furnace.
- Dated photos and the repair record. The system, the work, and the restored heat, captured the way the photo documentation guide describes so the dates and context survive a challenge.
- The timeline and receipts. Reported, acknowledged, stopgap, diagnosed, repaired, with the invoice attached. A clear sequence beats a pile of loose texts every time.
How to handle a no-heat report the right way, step by step
The sequence below protects you on both fronts at once. It gets the heat back on fast, and it builds the record you will need if the tenant later claims you left them in the cold.
- Acknowledge the report in writing. A quick reply fixes the date and starts your paper trail. It is the single easiest way to defeat a later “you ignored me” claim.
- Assess how urgent it really is. A brief outage in mild weather with a healthy adult is not the same as a failure during a hard freeze with an infant, an elderly tenant, or someone with a medical need in the unit. Triage honestly, because the law expects a faster response as the danger rises.
- Provide a stopgap and schedule a licensed repair promptly. If a full repair will take time, drop off safe space heaters and note that you did. Then get a qualified technician out, and if vendors are backed up in the cold-weather rush, document that you tried and the delay was not you sitting on it.
- Keep the tenant updated with a clear timeline. Silence is what turns a cold, annoyed tenant into a litigious one. A short message with the scheduled date and the stopgap plan buys goodwill and builds your record at the same time.
- Document the diagnosis, the fix, and the date heat was restored. The tech’s findings, dated photos, the completion, and the invoice. This is the record that proves you responded reasonably if the tenant ever claims otherwise, and it feeds any repair-versus-replace call on an aging system.
What the documentation flow looks like in practice
The records that win a no-heat dispute are the ones built while the repair is happening, not reconstructed weeks later when the tenant is claiming you left them freezing. A maintenance record captures the tenant’s report, your acknowledgment, the stopgap, the vendor’s diagnosis, the dated photos, the completion, and the receipt in one running timeline, and a move-in record sets the baseline showing the heating system was there and working on day one. When the argument lands, the file already exists. Here is what that maintenance record looks like as it is completed and finalized:
Frequently asked questions
Is a landlord required to provide heat?
In nearly every state, yes. Heat is one of the core essentials covered by the implied warranty of habitability, the landlord's baseline duty to provide a unit that is fit to live in. Alongside running water, hot water, working plumbing, and a safe structure, a functioning heating system is treated as a survival necessity rather than a comfort, which is why heat is required almost everywhere even though air conditioning usually is not. Many cities and states go further and set a minimum indoor temperature during a defined heating season. A landlord generally cannot rent a unit that has no way to heat it in cold weather, and a lease clause claiming otherwise does not override the warranty of habitability. Always confirm the specific rule for your state and city, because the minimum temperatures and heating-season dates are often set at the local level.
What temperature does a landlord have to keep the heat at?
There is no single national number, because minimum-temperature rules are usually set by state or city code. Where a specific rule exists, it commonly requires the landlord to make it possible to keep the unit around 68 degrees Fahrenheit during daytime hours in the heating season, with a slightly lower minimum overnight. Some cities define a heating season by calendar dates, often running from around October through April or May, and some set the requirement by outdoor temperature instead. The key distinction is that the landlord's duty is usually to provide a heating system capable of reaching the required temperature, not to guarantee any exact reading regardless of how the tenant uses it. Check your local housing or property maintenance code for the exact figures, because they vary.
How long can a landlord leave a tenant without heat?
Not long. No heat in cold weather is generally treated as an emergency repair, not a routine one, so the reasonable-time standard is short, often measured in hours to a day or two rather than the days or weeks a minor repair might allow. The colder the weather and the more vulnerable the occupants, such as infants, elderly tenants, or someone with a medical condition, the faster the law expects a response. A landlord who gets a qualified technician out quickly, provides a safe stopgap like space heaters if a full repair will take time, and keeps the tenant updated is on solid ground. A landlord who goes silent while a unit sits at 50 degrees is inviting repair-and-deduct, rent withholding, a code complaint, and in extreme cases a constructive-eviction claim. Speed and a documented response matter far more than any exact deadline.
Can a tenant withhold rent or repair-and-deduct if there is no heat?
Often yes, if they follow the required steps and their state allows it. Because heat is a core habitability item, a prolonged loss of heat is one of the strongest cases a tenant can make for the standard habitability remedies: written notice to the landlord, then repair-and-deduct or rent withholding where state law permits, and in serious cases a report to the local housing or code-enforcement office. Most states require the tenant to give proper written notice and a reasonable, though short, time to fix it first, and they usually cannot withhold or deduct if they caused the problem. The single best way for a landlord to avoid these remedies is to respond quickly and keep a dated record proving they did, because a tenant who withholds rent after a landlord actually moved fast is on much weaker ground when there is a paper trail.
Who pays the heating bill, the landlord or the tenant?
That is a separate question from who has to provide heat, and the two are easy to confuse. Who pays the gas, oil, or electric bill is set by the lease and by how the utilities are metered. It is common and legal for the tenant to hold the utility account and pay for the fuel they use. What does not change is the landlord's duty to provide and maintain a working heating system. A landlord cannot point to the tenant's utility bill to avoid fixing a broken furnace, and shutting off or refusing to restore heat as a way to pressure a tenant is an illegal self-help tactic in nearly every state. Put the utility responsibility in the lease clearly, and keep the responsibility for the heating equipment itself with the landlord where it belongs.
Where to go next
Three follow-on reads, in order:
- How long does a landlord have to make repairs, the timeline rules that decide whether your no-heat response was fast enough.
- Is a landlord required to provide air conditioning, the mirror-image question, and why cooling and heat live under different rules.
- Tenant rent withholding and habitability, what a tenant can legally do if you let a required repair sit, and why speed protects you.
Whether you have to provide heat is one of the easiest habitability questions to answer: in nearly every state, you do, and a lease cannot change that. The harder questions are how warm your city requires, how fast you fixed a failure, and whether you can prove it. Treat a no-heat report in cold weather as the emergency it is, keep a safe stopgap and a clear timeline, and build the paper trail from the moment of the report. Do that and a dead furnace stays a repair bill instead of a legal one. This is general information, not legal advice, and heat requirements, minimum temperatures, and tenant remedies vary by state and city, so confirm the specifics for your jurisdiction before you act.
