Last updated 2026-07-26

TL;DR
There's no single federal heat law. Most mandatory-heat cities set a heat season (commonly Oct 1 to May 31) and require indoor temps around 68°F during the day and 62-65°F at night, whenever outdoor temps drop below a set trigger, often 55°F. Rules come from local housing codes, not one national standard, so confirm exact dates and temps with your city.
When is a landlord legally required to turn on the heat?
There is no federal statute that tells landlords when to turn on the heat. Heat rules live in state housing codes, state sanitary codes, and local municipal ordinances, and they vary block by block once you cross a city line. What's consistent across most mandatory-heat jurisdictions is the basic structure: a defined heating season (a start date and end date), a minimum indoor temperature requirement, and sometimes an outdoor temperature trigger that turns the duty on even outside the normal season. New York City is the clearest, most cited example. Under the NYC Housing Maintenance Code, Local Law 60 and related rules, owners must provide heat during "Heat Season," defined as October 1 through May 31. During that period, if the outside temperature falls below 55°F between 6 a.m. and 10 p.m., indoor temperature must be at least 68°F. Overnight, from 10 p.m. to 6 a.m., indoor temperature must be at least 62°F regardless of outside temperature [1]. Chicago runs a similar but distinct schedule under its Municipal Code: heat is required from September 15 through June 1, with a minimum of 68°F from 8:30 a.m. to 10:30 p.m. and 66°F overnight [2]. Boston's sanitary code requires 68°F daytime and 64°F overnight during a heating season that runs roughly October 15 through May 15, and it applies even absent a written lease clause on heat, because it's a state-level minimum sanitary standard [3]. The pattern to remember: three numbers matter in every mandatory-heat city, the season start date, the season end date, and the minimum indoor temperature (often split into a daytime number and a lower overnight number). If your city isn't named here, confirm with your city rental licensing office or building department before you assume a date, because some cities (Philadelphia, for instance) use different day/night splits and different season windows than NYC or Chicago.
What is the standard heat season, and does every city use the same dates?
| New York City | Oct 1 to May 31 | 68°F (below 55°F outside, 6am-10pm) | 62°F (10pm-6am) [1] | |
|---|---|---|---|---|
| Chicago | Sept 15 to June 1 | 68°F (8:30am-10:30pm) | 66°F (overnight) [2] | |
| Boston / Mass. | ~Sept 15 to June 15 | 68°F (7am-11pm) | 64°F (11pm-7am) [3] | If your city isn't one of these three, don't guess. Pull the actual chapter number from your municipal code or ask your city rental licensing office directly. Fines for heat violations in some cities scale with how many days the unit went without heat, so getting the date range wrong isn't a small mistake. |
No. "Heat season" is a real regulatory term but the actual dates differ by city, and some cities don't define a season at all, just a temperature trigger. NYC: October 1 to May 31 [1]. Chicago: September 15 to June 1 [2]. Boston/Massachusetts sanitary code: roughly September 15 to June 15 for the trigger period tied to outdoor temperature, with the stricter 68°F daytime standard applying more specifically in the mid-October to mid-May window depicted in state guidance [3]. Some cities don't set fixed calendar dates at all and instead just say heat must be provided "whenever needed" or whenever outdoor temperature drops below a threshold like 55°F or 60°F for a sustained period. Here's a comparison of a few commonly cited programs: | City | Heat season | Daytime minimum | Overnight minimum |
What temperature is a landlord required to keep the unit at?
In cities with a numeric standard, the most common daytime minimum is 68°F, with an overnight minimum somewhere between 62°F and 66°F depending on the city [1][2][3]. A few jurisdictions use 65°F as the daytime figure instead of 68°F, so don't assume 68 is universal. The temperature requirement is usually about what the landlord's heating system is capable of delivering, not a guarantee against every possible cold snap. If the boiler is working, the thermostat is calibrated, and the unit still can't hit the minimum because a tenant leaves a window open, that's a different problem than a broken furnace. But if the system genuinely can't produce 68°F during required hours, that's typically a code violation regardless of intent. Most heat ordinances measure temperature at a specific point in the room, commonly 5 feet above the floor and at least 2 feet from exterior walls, which is the same measurement convention used in HUD's older Housing Quality Standards inspections and echoed in many local sanitary codes [4]. That detail matters if you ever end up disputing an inspector's reading.
What happens if a landlord doesn't turn on the heat?
Consequences range from a warning notice to real money, and in the worst cities, criminal exposure for repeat violations. NYC's Department of Housing Preservation and Development can issue violations and civil penalties, and repeat or willful heat violations can trigger significantly higher fines per violation per day under the city's Housing Maintenance Code enforcement scheme [1]. Chicago allows tenants to pursue remedies under its Residential Landlord and Tenant Ordinance, including repair-and-deduct type remedies tied to essential services like heat [2]. Beyond city fines, tenants in many states can use a "repair and deduct" remedy: pay for emergency heat or repairs themselves and deduct the cost from rent, sometimes capped at a set dollar amount or percentage of monthly rent depending on state law. Tenants can also escalate to the local housing court or code enforcement agency, and some cities let inspectors or fire departments perform emergency spot checks during a cold snap complaint. If you're the landlord getting the violation notice, the fastest way to protect yourself is documentation: boiler service records, thermostat logs, and any evidence a tenant's own conduct (broken window, disconnected radiator) caused the reading. If you manage licensed rental units and want to get ahead of these issues before an inspector shows up, a packet built around your city's specific inspection checklist (like the $79 City Rental License & Inspection Prep Packet) can help you track heat-season deadlines alongside your other licensing paperwork, though it's not a substitute for actually fixing a broken furnace.
Who is responsible for the rental property walkthrough inspection in California?
In California, the pre-move-out inspection process is governed by state law (Civil Code Section 1950.5), and it's the landlord's responsibility to offer it and conduct it, though the tenant chooses whether to attend. The statute requires the landlord to notify the tenant in writing of the right to request an initial inspection before move-out, conducted no earlier than two weeks before the tenancy ends [5]. The landlord (or their agent) does the actual walkthrough and must give the tenant an itemized statement of anticipated deductions after that inspection, so the tenant has a chance to fix issues before final move-out and avoid losing part of the security deposit [5]. This is separate from any city-level rental inspection program (some California cities, like Los Angeles and Oakland, run their own systematic rental inspection programs under local ordinances for code compliance, which is a different process from the security-deposit walkthrough). So: two different "inspections" can apply to the same California rental. One is the state-mandated pre-move-out walkthrough tied to deposit deductions. The other, where it exists, is a city rental inspection program tied to housing code and licensing, and cities running those programs set their own inspector, schedule, and fee. Confirm with your specific city's rental licensing office whether a program like that applies to your unit.
What can a landlord look at during an inspection?
During a routine rental inspection (code compliance or licensing-related, not the California move-out walkthrough), inspectors generally check life-safety items: smoke and carbon monoxide detectors, egress windows, working heat and hot water, electrical hazards, plumbing leaks, pest evidence, and structural issues like broken stairs or railings. Many city programs use a written checklist tied to a local housing or property maintenance code, and some explicitly base their standards on the International Property Maintenance Code, which many U.S. cities adopt in whole or part [6]. What inspectors typically are not there to do is comb through a tenant's personal belongings or judge how clean someone keeps their unit beyond health and safety thresholds (visible mold, pest infestation, blocked exits). Inspection scope is usually spelled out in the ordinance itself, so if you're not sure what's in bounds, ask your city's rental licensing office for the actual checklist before the inspection date, not after. Landlords conducting their own periodic inspections (separate from a city-mandated one) generally need to give notice first under state landlord-tenant law, which leads into the next question.
How much notice does a landlord have to give before entering or inspecting a unit?
Notice requirements vary by state, but 24 hours is the most common baseline for non-emergency entry, including for inspections and repairs. California requires "reasonable notice," which state law presumes to be 24 hours absent other circumstances, delivered in writing in most cases (Civil Code Section 1954) [7]. Many other states set a similar 24-hour or 48-hour standard by statute, though some don't specify a number at all and just require "reasonable" notice, which becomes a judgment call. Emergencies are the standard exception: a landlord can enter without advance notice for a genuine emergency, like a burst pipe or fire. Routine inspections, repairs, and showings to prospective tenants or buyers generally require the advance notice your state sets. If your city runs a mandatory rental inspection program, the notice for that specific inspection is usually spelled out separately in the local ordinance and can differ from your state's general entry-notice statute, sometimes with a longer notice period (like 7 or 14 days) because the city has to schedule an inspector. Don't assume your state's general 24-hour rule covers a city-mandated licensing inspection; check the actual notice language in the inspection letter or ordinance.
What does a landlord legally have to do, and what is landlording?
"Landlording" just means the practical job of owning and operating rental property: collecting rent, maintaining the unit, handling repairs, following local licensing and safety rules, and managing the tenant relationship within the bounds of state and local law. A landlord, legally, is the owner (or their authorized agent) who leases real property to a tenant in exchange for rent, and that relationship creates a defined bundle of duties under state landlord-tenant law and local housing codes. At minimum, most states require landlords to maintain "habitability," a legal standard meaning the unit is fit to live in: working plumbing, safe electrical systems, structural soundness, weatherproofing, and (in mandatory-heat jurisdictions) working heat during the heating season. This duty usually exists regardless of what the lease says, because habitability requirements are set by state statute or the state sanitary code, not by private contract [3]. Beyond habitability, landlords typically owe tenants: proper notice before entry, a legally compliant security deposit process (collection limits, return timelines, itemized deduction statements), non-discriminatory treatment under the federal Fair Housing Act, and compliance with any local rental registration or licensing ordinance. If your city requires a rental license or registration, operating without one can itself trigger fines even if the unit is otherwise in good shape, which is a separate risk from the heat and habitability issues covered above.
How do you become a landlord, and what do first-timers usually get wrong?
Becoming a landlord legally starts with owning (or having authority to lease) real property, then meeting whatever your state and city require before you can rent it out: business licensing in some states, a rental registration or rental license in mandatory-licensing cities, a certificate of occupancy or inspection pass in others, and compliance with lead paint disclosure rules if the building predates 1978 (required nationally under federal law, since the EPA's Lead-Based Paint Disclosure Rule applies to all pre-1978 housing regardless of city) . The most common first-timer mistakes aren't about finding a tenant, they're procedural: not knowing the city requires a rental license before the first tenant moves in, missing the security deposit handling rules (some states cap deposits and require them held in a separate interest-bearing account), not understanding habitability duties exist independent of the lease, and not budgeting for the periodic inspection fees mandatory-licensing cities charge. If you're picking up your first unit in a city with a rental licensing or inspection program, the fastest way to get oriented is pulling the actual ordinance from your city's housing or building department website and reading the inspection checklist before you ever list the unit. For a structured way to organize that paperwork across multiple properties or units, the $79 City Rental License & Inspection Prep Packet walks through the common document categories cities ask for (proof of ownership, smoke/CO detector compliance, lead paint documentation) so you're not assembling it the week before your inspection date.
Why do landlords require renters insurance?
Landlords require renters insurance mainly to shift liability and property-damage risk away from themselves and their own insurance policy. A landlord's own policy (dwelling/fire insurance) typically covers the building structure, not a tenant's personal belongings, and it often doesn't cover a tenant's liability if the tenant accidentally causes damage (a kitchen fire, an overflowing bathtub that damages the unit below). Renters insurance is comparatively cheap, commonly in the range of roughly $15 to $30 a month depending on coverage and location according to industry data cited by state insurance departments and consumer guidance, though exact pricing varies a lot by state and coverage level. Requiring it as a lease condition (where state law allows landlords to mandate it) reduces the odds a landlord ends up absorbing a tenant's negligence claim or a tenant's uninsured personal property loss turning into a dispute. Whether a landlord can legally require renters insurance as a lease condition depends on state law, and this article isn't drafting lease language or giving legal advice on that question. If you're building a lease clause around it, that's worth running by a local attorney or your state's landlord-tenant statute directly.
What rights do tenants have without a signed lease?
A tenant without a written lease still generally has legal rights, because most tenant protections come from state statute, not from lease language. In the absence of a written lease, most states default to treating the tenancy as month-to-month, governed by the state's standard notice-to-terminate rules (commonly 30 days, though this varies by state and by how long the tenant has lived there). Habitability duties, fair housing protections, security deposit rules (if any deposit was collected), and notice-before-entry requirements typically still apply to a no-lease or verbal tenancy, because those protections are set by state code, not contract. What a tenant loses without a written lease is mostly certainty and proof: no documented rent amount, no documented move-in condition, no agreed rules on pets, subletting, or other terms, which makes disputes harder to resolve cleanly for both sides. Landlords operating without written leases take on real risk too. If a rent increase or lease term is ever disputed, there's no document to point to, and in a rental-licensing city, some ordinances still require written lease terms or registration paperwork regardless of whether a lease exists, so a no-lease arrangement doesn't get you out of local licensing obligations.
What can't a landlord do in Ohio?
Ohio landlord-tenant law (Ohio Revised Code Chapter 5321) sets specific restrictions on landlord conduct. Under ORC 5321.15, a landlord cannot use "self-help" eviction, meaning a landlord in Ohio cannot lock out a tenant, remove a tenant's belongings, or shut off utilities (like heat, water, or electricity) to force a tenant out, even if the tenant is behind on rent. Ohio law states a landlord "shall not cause, directly or indirectly, the interruption or diminution of any utility service furnished the tenant" as a means of eviction, and violating this exposes the landlord to the tenant's actual damages plus reasonable attorney's fees . Ohio landlords also cannot retaliate against a tenant for exercising legal rights, such as reporting a code violation or joining a tenant organization, under ORC 5321.02, which bars retaliatory eviction, rent increases, or service reductions taken because a tenant complained to a government agency about a health or safety violation . Beyond those two specific bars, Ohio landlords are bound by the same general framework most states use: habitability duties under ORC 5321.04 (keep the unit fit and habitable, comply with housing codes, keep common areas safe), no discrimination under the federal Fair Housing Act, and (in cities that require it) compliance with local rental registration or inspection ordinances layered on top of the state statute.
Frequently asked questions
Is there a federal law requiring landlords to provide heat?
No. There's no federal statute setting a national heat season or minimum indoor temperature for rental housing. Heat requirements come from state sanitary codes and local municipal ordinances, which is why the season dates and minimum temperatures differ by city. Always check your specific city or state code rather than assuming a national standard applies.
What is the minimum temperature a landlord must maintain in an apartment?
In cities with a numeric standard, 68°F during the day is the most common minimum, with overnight minimums typically between 62°F and 66°F. NYC uses 68°F daytime and 62°F overnight; Chicago uses 68°F daytime and 66°F overnight. Some cities use 65°F instead of 68°F, so confirm the exact number with your city.
When does heating season start and end in most cities?
There's no universal date. NYC's heat season runs October 1 through May 31. Chicago's runs September 15 through June 1. Massachusetts sanitary code guidance points to roughly mid-September through mid-June for the stricter standard. Always check your specific city's housing code rather than assuming one of these dates applies to you.
What can a tenant do if the landlord won't turn on the heat?
Tenants can typically file a complaint with the city's housing or code enforcement department, which can inspect and issue violations. Many states also allow a repair-and-deduct remedy, letting the tenant pay for emergency heat and deduct the cost from rent, often within a statutory cap. Persistent violations can also support a habitability lawsuit or rent escrow action depending on the state.
How to become a landlord for the first time?
Start by confirming your city and state's rental requirements: business licensing, rental registration or licensing, lead paint disclosure if the building predates 1978, and any local inspection program. Then set up compliant security deposit handling, a written lease, and habitability-ready maintenance before listing the unit. Skipping the licensing step is the most common first-timer mistake in mandatory-registration cities.
Who is responsible for the rental property walkthrough inspection in California?
The landlord is responsible for offering and conducting the pre-move-out inspection under California Civil Code Section 1950.5, though attending is the tenant's choice. The landlord must give written notice of this right and, after the walkthrough, an itemized list of anticipated deductions so the tenant can fix issues before the security deposit is finalized.
What is landlording, exactly?
Landlording is the practical work of owning and operating rental property: collecting rent, maintaining the unit to habitability standards, following state and local landlord-tenant law, handling security deposits correctly, and complying with any local rental licensing or inspection ordinance. It's a mix of legal compliance and property management, more than collecting a rent check.
What is a landlord, legally speaking?
A landlord is the property owner, or their authorized agent, who leases real property to a tenant in exchange for rent. That relationship creates legal duties under state landlord-tenant statutes, including habitability maintenance, proper notice before entry, and compliant security deposit handling, regardless of what's written in the lease itself.
What rights does a tenant have without a signed lease?
A tenant without a written lease is usually treated as a month-to-month tenant under state default rules, with standard notice-to-terminate requirements (commonly 30 days, varies by state). Habitability duties, fair housing protections, and notice-before-entry rules generally still apply, since those come from state statute rather than the lease document itself.
Why do landlords require renters insurance?
Landlords require it mainly to cover a tenant's personal property and shift liability for tenant-caused damage (kitchen fires, water damage) away from the landlord's own dwelling policy, which usually doesn't cover a tenant's belongings or a tenant's negligence claims. Renters insurance is comparatively inexpensive, often in the range of $15 to $30 a month depending on coverage and location.
How much notice does a landlord have to give before entering a unit?
Most states set a baseline around 24 hours for non-emergency entry, including inspections and repairs; California presumes 24 hours is reasonable notice under Civil Code Section 1954. Some states use 48 hours or an unspecified "reasonable" standard. City-mandated inspection notices can differ from your state's general entry rule, so check the specific ordinance.
What can a landlord look at during a rental inspection?
Inspectors generally check life-safety items: smoke and CO detectors, egress windows, working heat and hot water, electrical and plumbing hazards, pest evidence, and structural safety issues like broken railings or stairs. Scope is usually set by the local housing or property maintenance code, and many cities base standards on the International Property Maintenance Code.
What can't a landlord do in Ohio?
Ohio landlords cannot use self-help eviction: no lockouts, no removing a tenant's belongings, and no shutting off utilities like heat or water to force a tenant out (ORC 5321.15). Ohio also bars retaliatory eviction or rent increases against a tenant who reports a code violation (ORC 5321.02). Violations can make the landlord liable for the tenant's damages and attorney's fees.
Sources
- Mass.gov, Heating season and minimum temperature requirements: Massachusetts sanitary code sets daytime and overnight minimum temperatures during the heating season
- California Civil Code Section 1950.5: California requires landlord-offered pre-move-out inspection and itemized deduction statement for security deposits
- International Code Council, International Property Maintenance Code adoption: Many U.S. cities adopt the International Property Maintenance Code as the basis for rental inspection standards
- California Civil Code Section 1954: California presumes 24 hours is reasonable notice before landlord entry
- EPA, Disclosure of Known Lead-Based Paint Hazards Rule: Federal lead paint disclosure rule applies to all housing built before 1978
- Ohio Revised Code Section 5321.15: Ohio bars self-help eviction including utility shutoffs used to force a tenant out
- Ohio Revised Code Section 5321.02: Ohio bars retaliatory eviction or rent increases against tenants who report code violations