Roundup · Apartment
Nothing you can install, nothing that trips the breaker your neighbor shares, and nothing anyone can hear through the wall.
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An apartment heater is constrained by three things a house is not: a lease that usually bans anything installed, a breaker panel shared with neighbors and often undersized, and walls thin enough that a fan is a social problem. Buy portable, buy something with a low setting, and buy quiet.
Residential leases commonly restrict portable heaters, and the restriction usually takes one of three forms: a ban on anything not UL or ETL listed, a ban on anything that alters the electrical system, or an outright prohibition in buildings where the insurer requires it. None of that is universal and we cannot tell you what yours says — read it. What we can tell you is that the listing-mark clause is the most common, and it is the reason the safety-certification line appears on every product on this site whether or not the maker publishes one.
If your lease requires a listed heater, you need a unit whose maker actually names the mark, and you need to confirm it on the rating plate rather than the listing. UL vs ETL, and what a listing mark really certifies explains what the two marks mean and why an ETL mark is not the second-best option people assume it is.
A 1,500 W heater draws 12.5 A, against the 12 A continuous allowance of a 15 A circuit. In a house that is a manageable annoyance. In an older apartment building, where one 15 A circuit may serve a bedroom, a hallway and half the living room, it is the difference between a warm evening and a dark one — and in some buildings the panel is in a common area you do not have keys to.
| Heater | Draw at 120 V | 15 A circuit (12 A limit) | 20 A circuit (16 A limit) |
|---|---|---|---|
| 750 W | 6.3 A | Fits | Fits |
| 900 W | 7.5 A | Fits | Fits |
| 1,500 W | 12.5 A | Over the limit | Fits |
| Maximum continuous | — | 12 A = 1,440 W | 16 A = 1,920 W |
Draw computed as watts / 120 V. The continuous limit is 80% of the breaker rating, which follows from the NEC's requirement to size a circuit at 125% of a continuous load (NFPA 70, 210.19(A)(1) and 210.20(A)).
This is why every pick on this page either has a published low setting or is small enough that you will not be tempted to run it at full output continuously. Running at 900 W puts you at 7.5 A, which leaves room for a lamp, a laptop and a phone charger on the same circuit. The full arithmetic is on a 1,500 watt heater on a 15 amp circuit.
Apartment walls transmit low-frequency fan noise well. A ceramic heater running at full output overnight in a bedroom that shares a wall with someone else's bedroom is a genuine consideration, and it is the reason the top pick on this page has no fan at all. A mica panel heats by radiation and natural convection, which means it makes no sound whatsoever — the same property that puts oil-filled radiators on the quietest space heaters.
The commonest apartment heating mistake is buying one heater to warm a whole unit. It cannot work: 1,500 W is the ceiling for a wall outlet, and at 10 watts per square foot that is 150 sq ft — one room, not a floor plan. A space heater is a supplementary appliance for the room you are in.
| Room size | Watts needed | BTU/h | Plug-in heaters |
|---|---|---|---|
| 75 sq ft | 750 W | 2,559 | 1 |
| 100 sq ft | 1,000 W | 3,412 | 1 |
| 150 sq ft | 1,500 W | 5,118 | 1 |
| 200 sq ft | 2,000 W | 6,824 | 2 (different circuits) |
Computed as square feet x 10 W x insulation factor x (ceiling / 8 ft), for an average heated room — 10 W/sq ft, 8 ft ceiling. Heater count assumes the 1,500 W plug-in ceiling.
If the room you want warm is bigger than the table allows for, the honest answer is that the building's heating system is the thing that needs attention, and the next step is the landlord rather than a second heater. Where a single room is genuinely under-served — a corner bedroom, a room over a garage — a correctly sized heater in that room is exactly the right tool.
| Wattage | Per hour | 4 h | 8 h |
|---|---|---|---|
| 750 W | 13.8¢ | $0.55 | $1.10 |
| 900 W | 16.5¢ | $0.66 | $1.32 |
| 1,500 W | 27.5¢ | $1.10 | $2.20 |
Computed at 18.34¢/kWh — the U.S. residential average for June 2026 (EIA, Electric Power Monthly, Table 5.6.A, released August 26, 2026). Your rate is on your own bill; substitute it and the arithmetic still holds. Figures assume full output for the whole period.
An eight-hour evening at full output is about $2.20, or roughly $66 over a month. On a low setting it is closer to $33. In a building where heat is included in the rent, that cost moves from the landlord's column to yours the moment you plug in a space heater — which is worth knowing before you decide the radiator under the window is inadequate.
The rate behind every figure on this site
18.34¢per kilowatt-hour
U.S. residential average for June 2026. EIA, Electric Power Monthly, Table 5.6.A, released August 26, 2026.
This is the most recent month EIA has published. Residential rates move seasonally and vary enormously by state — from roughly a dime per kilowatt-hour in parts of the South to more than 40¢ in Hawaii — so treat it as a national reference point, not as your rate.
Silent first, because shared walls are the constraint that most often gets ignored. All four are portable, all four publish both cutoffs, and three of the four publish a low wattage.
Ranked for fit, not for hype. Coverage and current draw are computed from each unit’s published wattage. Tap a row for the full write-up, or go straight to the listing.
| # | Product | Best for | Covers | Draw | Price |
|---|---|---|---|---|---|
| 1 |  De'Longhi HMP1500A micathermic panel is a radiator that gave up its bulk: it radiates like oil-filled and warms up like ceramic, and it is about three inches deep so it can live against a wall. | A slim profile against a wall | 150 sq ft | 12.5 A | $129.95 · Check on Amazon |
| 2 |  Lasko 754201The 900 W low setting is the whole point: it is the rare listing that publishes both settings, so you can compute what the cheap mode actually costs instead of guessing. | One person at one desk | 150 sq ft | 12.5 A | $49.99 · Check on Amazon |
| 3 |  Dreo Solaris 718The rare heater whose published coverage claim survives the arithmetic: 1,500 W is a genuine 300 sq ft at 10 W/sq ft, and Dreo publishes that number rather than implying more. | A whole living room | 150 sq ft | 12.5 A | $129.99 · Check on Amazon |
| 4 |  Amazon Basics ceramicThe floor of the category. It publishes the two cutoffs that matter and nothing else, which at this price is the correct trade rather than a corner cut. | The cheapest honest way to heat one room | 150 sq ft | 12.5 A | $20.69 · Check on Amazon−13% |
Coverage computed at 10 W/sq ft, average insulation, 8 ft ceiling. Draw computed as watts ÷ volts. Neither figure is a manufacturer claim.
Top pick · A slim profile against a wall
A micathermic panel is a radiator that gave up its bulk: it radiates like oil-filled and warms up like ceramic, and it is about three inches deep so it can live against a wall.
| Published specification | |
|---|---|
| Rated power | 1,500 W high / 750 W low, at 120 V |
| Element | Mica panel — radiant plus convection, no fan |
| Mounting | Freestanding or wall-mountable |
| Controls | Adjustable thermostat, two heat settings |
| Frost mode | Standby setting holding the room above 41°F |
| Safety | Thermal shut-off, internal tip-over switch, standby setting |
| Heat type | Micathermic |
| Maker’s coverage claim | None published — the coverage figure above is ours |
| Safety listing | No listing mark published in the listing text; verify the UL or ETL mark on the rating plate. |
Who it is for
A room where floor space is tight and fan noise is unwelcome — a small bedroom, a study, a hallway landing.
What it is not for
A nursery or a household with toddlers, unless it is wall-mounted well out of reach. A hot panel at knee height is a burn, not a fire.
2 · One person at one desk
The 900 W low setting is the whole point: it is the rare listing that publishes both settings, so you can compute what the cheap mode actually costs instead of guessing.
| Published specification | |
|---|---|
| Rated power | 1,500 W high / 900 W low, at 120 V |
| Thermostat | Adjustable dial; 2 heat settings plus fan-only |
| Size | 9.2 x 7 x 6 in, 2.93 lb |
| Cord | 6 ft (Lasko's published figure) |
| Safety | Tip-over switch, overheat protection, cool-touch housing |
| Warranty | 3 years |
| Heat type | Ceramic (PTC) |
| Maker’s coverage claim | 100 sq ft |
| Safety listing | ETL listed, per Lasko's published specification — one of the few in this roundup that names a mark rather than leaving it to the rating plate. |
Who it is for
A desk, a small office, a dorm room — somewhere you want heat on a person rather than in a room.
What it is not for
A nursery, and not unattended use. It publishes a tip-over switch and overheat protection, but no child lock — and the USFA's advice to switch a heater off when you leave the room applies to every unit on this site, listed or not.
3 · A whole living room
The rare heater whose published coverage claim survives the arithmetic: 1,500 W is a genuine 300 sq ft at 10 W/sq ft, and Dreo publishes that number rather than implying more.
| Published specification | |
|---|---|
| Rated power | 1,500 W at 120 V |
| Maker's coverage claim | 300 sq ft |
| Thermostat | 41–95°F digital, 1°F increments |
| Oscillation | 30° / 60° / 90° / 120° |
| Dimensions | 7.9" D x 7.9" W x 29.7" H, 8 lb |
| Safety | Tip-over cutoff, overheat cutoff, child lock, thermal cutoff |
| Heat type | Ceramic (PTC) |
| Maker’s coverage claim | 300 sq ft |
| Safety listing | ETL listed (stated by Dreo on the product page) |
Who it is for
A living room, bedroom or den at or under 300 sq ft with average insulation and an 8-foot ceiling, where you want to set a temperature and stop thinking about it.
What it is not for
A garage, an uninsulated basement, or anything over about 300 sq ft. It is not under-powered — 1,500 W is the plug-in ceiling — the room is simply too big for one outlet.
4 · The cheapest honest way to heat one room
The floor of the category. It publishes the two cutoffs that matter and nothing else, which at this price is the correct trade rather than a corner cut.
| Published specification | |
|---|---|
| Rated power | 1,500 W at 120 V |
| Thermostat | Adjustable |
| Oscillation | None — it points where you point it |
| Size | 7.52" D x 6.34" W x 9.45" H |
| Safety | Overheat protection and tip-over protection, both published |
| Heat type | Ceramic (PTC) |
| Maker’s coverage claim | None published — the coverage figure above is ours |
| Safety listing | No listing mark is published in the listing text. That is worth knowing at this price: check the rating plate for the UL or ETL mark before you run it unattended. |
Who it is for
A spare room, a dorm, a workshop corner, or anyone who wants to find out whether a space heater solves their problem before spending real money on one.
What it is not for
Unattended or overnight use. Without a published listing mark we would not leave this one running in a room nobody is in.
And what we did not do: we have not tested these units, owned them, measured them or run them in a room. Everything above is compiled from published manufacturer specifications and live retail listings, with the electrical load, room coverage and running cost computed by us from the published wattage. The full method.
Every roundup on this site names something to skip. It costs us nothing to publish and it is the fastest way to tell whether a buying guide was written for you or for its commission.
Anything wall-mounted, hardwired, or fixed to the structure
Wall-mounted panel heaters and hardwired units are genuinely good products and several appear elsewhere on this site. In a rental they are the wrong purchase twice over: almost every residential lease prohibits altering the electrical system or drilling into walls without written permission, and a hardwired 240 V unit requires an electrician working on a panel you do not own. If your apartment genuinely needs fixed heating, that is a conversation with the landlord about the building's heating system, not a purchase.
Two 1,500 W heaters in a one-bedroom apartment
Two 1,500 W heaters draw 25 A between them. A great many older apartments run several rooms from one 15 A circuit, so two heaters plus a kettle is a tripped breaker and, in a shared panel, potentially not only yours. If one room is genuinely cold, size a single heater properly; if the whole apartment is cold, one more space heater is not the fix and the building's heating is the actual problem.
It depends entirely on your lease, and you should read it rather than assume. The most common restriction is a requirement that the heater carry a UL or ETL listing mark; the next most common is a ban on anything that alters the building's electrical system. Some buildings prohibit them outright at the insurer's request.
It can. A 1,500 W heater draws 12.5 A against a 15 A circuit's 12 A continuous allowance, and older apartments often run several rooms from one circuit. Running the heater on a 900 W setting drops it to 7.5 A and leaves headroom for everything else on that circuit.
Anything without a fan — a mica panel heater or an oil-filled radiator. Both heat by radiation and natural convection and make no sound at all. Every ceramic and fan-forced heater has a fan by necessity, and in a building with shared walls that is a real consideration.
No. A U.S. wall outlet caps a heater at 1,500 W, which covers about 150 square feet at 10 watts per square foot — one room. A space heater is a supplement for the room you are in. If the whole unit is cold, the building's heating system is the problem to solve.
No, it costs you money. Where heating is included in the rent, running a space heater moves that cost onto your own electricity bill — about $66 a month for eight hours a day at full output. If the included heating is inadequate, raising it with the landlord is the cheaper route.
For rooms under 150 sq ft, where 1,500 W is oversized and the thermostat is what actually matters.
Silent by design, not by adjective — the fanless types, plus the one unit that publishes a dB figure.
Both marks mean the same standard was met. Here is how to check that a listing is real.
12.5 A against a 12 A continuous limit — the arithmetic nobody publishes, and what to do about it.
Silent, timed and safe overnight — the units that solve the bedroom's three actual problems.
A $23 heater makes the same heat as a $460 one. Here is what the money actually buys, and what it does not.