--- title: "Space heater: which one to buy for a bedroom, bathroom or office" description: "Four space heaters for the bedroom, bathroom and living room, what energy-efficient really means and how much heater a room needs." url: https://picksdesk.com/en/home-kitchen/space-heater-which-to-buy language: en category: "Home & Kitchen" kind: guide byline: "Emily Carter" editor: "Andrea Bertolotti" publisher: "PicksDesk" published: 2026-10-01 updated: 2026-10-01 tags: ["space heater", "ceramic space heater", "oil-filled radiator", "bathroom heater", "electric heater", "space heater energy use"] products: ["Lasko 754200 Ceramic Tabletop Space Heater with Thermostat, 1500 W (Lasko)", "Dreo Quiet Ceramic Space Heater, 1500 W, 70° Oscillation, Remote (Dreo)", "Lasko CD08200 Ceramic Bathroom Space Heater with ALCI Plug, 1500 W (Lasko)", "De'Longhi EW7707CM Oil-Filled Radiator Space Heater, 1500 W (De'Longhi)"] --- # Space heater: which one to buy for a bedroom, bathroom or office > Ceramic heater, bathroom model or oil-filled radiator: four space heaters for bedrooms, bathrooms and living rooms, and how to keep the electric bill in check. Category: Home & Kitchen · Byline: [Emily Carter](https://picksdesk.com/en/team/emily-carter) · Published: 2026-10-01 · Updated: 2026-10-01 · Web version: https://picksdesk.com/en/home-kitchen/space-heater-which-to-buy For a bedroom or home office up to about 150 square feet, the space heater we'd buy is the Lasko 754200: a 1500 W ceramic heater with two heat settings, an adjustable thermostat, a fan-only mode and overheat protection, small enough to sit on a desk. As for "energy-saving" heaters, here's the short version: every electric heater turns the power it draws into heat, so you save by matching the heater to the room and letting the thermostat do its job. ### At a glance - **Lasko 754200 Ceramic Tabletop Space Heater with Thermostat, 1500 W** · For bedrooms and home offices · $25–40 - **Dreo Quiet Ceramic Space Heater, 1500 W, 70° Oscillation, Remote** · For quiet nights and bigger rooms · $45–70 - **Lasko CD08200 Ceramic Bathroom Space Heater with ALCI Plug, 1500 W** · For the bathroom · $35–50 - **De'Longhi EW7707CM Oil-Filled Radiator Space Heater, 1500 W** · For long evenings in the living room · $80–120 ## How we chose We don't physically test the products. We compared spec sheets and manuals from Lasko, Dreo and De'Longhi, roundups from US outlets that measure heaters in real rooms, and verified-buyer reviews on Amazon.com, reading the ones written after a full winter first, since that's when the real problems show up: thermostats that cycle off too early, fans that start to whine, a plastic smell that never goes away. Four criteria mattered. A **thermostat**, because without one a heater runs flat out and your electric bill shows it. **Output that fits the room**; in the US nearly every plug-in heater tops out at 1500 W on a standard 120 V outlet, so the real differences are in how the heat is delivered. **Listed safety features**: ETL or UL certification, overheat shutoff, tip-over protection, and an ALCI plug for bathrooms. And availability on Amazon.com under a verified listing. We skipped no-name heaters without a downloadable manual. ## The four space heaters we recommend ### Lasko 754200: best for bedrooms and home offices **Product: Lasko 754200 Ceramic Tabletop Space Heater with Thermostat, 1500 W** (Lasko) · Best for: For bedrooms and home offices - Price band: Budget pick - Specs: Type Ceramic fan heater; Power 1500 W; Power levels 2 + fan only; Coverage small rooms (about 150 sq ft); Controls Manual dials and thermostat; Functions Overheat protection, cool-touch housing - Key points: 1500 W ceramic, 2 heat settings + fan only; Adjustable thermostat; Overheat protection, cool-touch, ETL **Pro** **Pros** - 1500 W ceramic element, two heat settings plus fan-only, and an adjustable thermostat. - Overheat protection, cool-touch housing and ETL certification, per Lasko. - Light, with a built-in handle; it moves from the office to the bedroom in seconds. **Da sapere / Caveats** **Cons** - The thermostat dial has no degree markings, so you find the right spot by trial and error. - Like every fan heater it makes a steady whoosh that light sleepers will notice. - No timer, no remote and no tip-over switch listed for this model. **Who it's for:** anyone who wants to warm a small room fast and switch off on the way out. ### Dreo ceramic space heater: the quiet upgrade **Product: Dreo Quiet Ceramic Space Heater, 1500 W, 70° Oscillation, Remote** (Dreo) · Best for: For quiet nights and bigger rooms - Price band: Mid-range - Specs: Type Oscillating ceramic heater; Power 1500 W; Power levels Multiple modes + ECO; Coverage bedrooms and mid-size rooms; Controls Touch panel, remote, digital thermostat; Functions Oscillation, child lock, tip-over protection - Key points: Digital thermostat 41–95°F; 70° oscillation and remote; Brushless DC fan, child lock, tip-over protection **Pro** **Pros** - Digital thermostat from 41 to 95°F in one-degree steps, so you set a number instead of guessing. - 70-degree oscillation and a remote: it spreads heat across a bigger room and you adjust it from the couch. - Brushless DC fan; Dreo quotes noise as low as 34 dB, plus child lock and tip-over protection. **Da sapere / Caveats** **Cons** - Mid price tier, a clear step above the Lasko. - On high the fan still hums; it is not as silent as an oil-filled radiator. - More electronics means more to go wrong than a knob-and-dial heater. **Who it's for:** anyone who runs a heater in the bedroom while sleeping or in a living room that needs wider coverage. ### Lasko CD08200: for the bathroom **Product: Lasko CD08200 Ceramic Bathroom Space Heater with ALCI Plug, 1500 W** (Lasko) · Best for: For the bathroom - Price band: Budget pick - Specs: Type Ceramic bathroom heater; Power 1500 W; Power levels 2; Coverage bathrooms and small rooms; Controls Top controls, 1-hour timer; Functions ALCI plug, overheat protection - Key points: ALCI safety plug for bathroom use; 1500 W, 2 heat settings; 1-hour timer button **Pro** **Pros** - ALCI safety plug, which Lasko lists as approved for bathroom use. - 1500 W ceramic heat and two settings; it takes the chill off a small bathroom quickly. - A one-hour timer button, handy for keeping the room warm after a shower. **Da sapere / Caveats** **Cons** - No real benefit over the 754200 outside the bathroom. - The bulky ALCI plug can be awkward on a crowded outlet. - It still needs the clearance from tubs and sinks listed in the manual. **Who it's for:** anyone with a cold bathroom who wants a heater built for that room. ### De'Longhi EW7707CM: for long evenings in the living room **Product: De'Longhi EW7707CM Oil-Filled Radiator Space Heater, 1500 W** (De'Longhi) · Best for: For long evenings in the living room - Price band: Premium - Specs: Type Oil-filled radiator; Power 1500 W; Power levels Adjustable + ComfortTemp; Coverage small to mid-size rooms; Controls Dials and adjustable thermostat; Functions Thermal slots, wheels, overheat protection - Key points: Fanless oil-filled radiator; ComfortTemp energy-saving mode; Wheels and built-in handle **Pro** **Pros** - Oil-filled radiator, 1500 W: even, draft-free heat with no fan noise. - ComfortTemp mode, which De'Longhi says holds a comfortable temperature at lower power. - Built-in handle and wheels; De'Longhi's thermal-slot design keeps the surface temperature lower than older radiators. **Da sapere / Caveats** **Cons** - Slow: it takes a long time to warm a room, so it's no help for a quick fifteen minutes. - Heavy and bulky to carry up and down stairs. - Upper price tier of this group. **Who it's for:** anyone who needs to keep a living room or office warm for hours at a stretch. ### Comparison | | Lasko 754200 Ceramic Tabletop Space Heater with Thermostat, 1500 W | Dreo Quiet Ceramic Space Heater, 1500 W, 70° Oscillation, Remote | Lasko CD08200 Ceramic Bathroom Space Heater with ALCI Plug, 1500 W | De'Longhi EW7707CM Oil-Filled Radiator Space Heater, 1500 W | | --- | --- | --- | --- | --- | | Best for | For bedrooms and home offices | For quiet nights and bigger rooms | For the bathroom | For long evenings in the living room | | Type | Ceramic fan heater | Oscillating ceramic heater | Ceramic bathroom heater | Oil-filled radiator | | Power | 1500 W | 1500 W | 1500 W | 1500 W | | Power levels | 2 + fan only | Multiple modes + ECO | 2 | Adjustable + ComfortTemp | | Coverage | small rooms (about 150 sq ft) | bedrooms and mid-size rooms | bathrooms and small rooms | small to mid-size rooms | | Controls | Manual dials and thermostat | Touch panel, remote, digital thermostat | Top controls, 1-hour timer | Dials and adjustable thermostat | | Functions | Overheat protection, cool-touch housing | Oscillation, child lock, tip-over protection | ALCI plug, overheat protection | Thermal slots, wheels, overheat protection | | Price band | Budget pick | Mid-range | Budget pick | Premium | ## What an "energy-efficient" space heater really means An electric space heater turns almost all the electricity it draws into heat. Ceramic, coil, oil-filled or "infrared" changes how that heat reaches you, not how much energy it takes to make it. The math is simple: power in kilowatts times hours of use. A 1500 W heater on high for two hours uses 3 kWh; on a 750 W low setting it uses 1.5 kWh. Multiply by the rate on your utility bill, in cents per kWh, and you have the real cost. So where do you save? In three places. The thermostat, which cuts the element once the room is warm: a heater that cycles off half the time uses half the energy. The right setting, because a small bathroom doesn't need the high setting for long. And how long you run it: a space heater makes sense for warming one room for a few hours, not for heating the whole house. > "Eco" or "energy-saving" labels usually mean a mode that lowers power as the room nears the set temperature. That helps, but the result still depends on how you use the thermostat. ## Fan heater, ceramic or oil-filled A fan heater pushes warm air with a fan: it heats the area in front of it within minutes and stops the moment you switch it off. A ceramic space heater uses a PTC element that limits its own temperature. It's what we'd pick for a desk or a bedroom. An oil-filled radiator warms the air by convection, with no fan. It is much slower, but once warm it holds the temperature with fewer swings and in silence. For a whole evening, pick the radiator; for half an hour, the fan heater. *Photo: Warming one room at a time is where a space heater makes sense; the whole house is another story.* ## How much heater your room needs Because almost every plug-in model is capped at 1500 W, the question is less "how many watts" and more "how well does it spread heat." A rough rule used by heater makers is about 10 watts per square foot of floor, which puts a 1500 W heater at around 150 square feet; drafty older homes and high ceilings need more margin, well-insulated rooms less. For a larger room, oscillation (the Dreo) or slow convection (the De'Longhi) does a better job than a fixed blower. Mind the circuit, too. 1500 W is a heavy load for a standard 15-amp circuit, and if the same line runs a microwave or a hair dryer the breaker can trip. The Lasko and De'Longhi manuals both say to plug the heater directly into a wall outlet, never into a power strip or extension cord. If your problem is damp as much as cold, heat alone won't fix it; our guide to picking a [35 pint dehumidifier](https://picksdesk.com/en/home-kitchen/dehumidifier-which-to-buy) covers that side. ## Noise and running it overnight Noise is what really separates these four. Any fan heater hums, louder on high; the Lasko 754200 is the most noticeable, the Dreo is quoted by its maker at 34 dB at its quietest, and the De'Longhi radiator only clicks when the thermostat kicks in. If you read or work in silence, that radiator is the natural choice. For overnight use our view is firm: warm the bedroom before bed, then switch off or rely on a thermostat-controlled model like the Dreo. Every manual in this group says not to leave the heater running unattended. ## The most common mistakes - **Covering it or drying clothes on it.** Blocked grilles trip the overheat cutoff, and every manual forbids it. - **Parking it behind a curtain or under a desk.** Heaters need open space in front and around them; the minimum clearances are in each manual. - **Leaving the thermostat on max.** That turns it into a heater without a thermostat, the most expensive kind to run. - **Panicking at the first smell.** On first use, and at the start of each season, dust on the element burns off and smells for a few minutes. Open a window; if the smell lingers, contact support. ## When to buy one, and when not to It makes sense if you heat one room at a time: the home office on work-from-home days, the bathroom in the morning, the kids' room before bedtime. In October, during [October Prime Day](https://picksdesk.com/en/deals/prime-big-deal-days), these models often show up among the home deals. Skip it if you plan to heat the whole house for many hours a day: for that, a heat pump or central heating costs less for the same warmth. And don't buy a heater without a thermostat, however cheap it is. ## Our verdict **Bedroom, home office and rooms up to about 150 sq ft:** Lasko 754200, because it heats fast, has a thermostat and goes anywhere. **Quiet bedroom or a bigger room:** the Dreo ceramic heater, for its digital thermostat, oscillation and low fan noise. **Bathroom:** Lasko CD08200, the only one here with an ALCI plug listed for bathroom use. **Living room for hours on end:** De'Longhi EW7707CM, slow but silent and steady. ## FAQ **Which space heater uses the least electricity?** For the same amount of heat they all use the same energy; the cheapest to run is the one with a thermostat sized for the room. In our group, the Lasko 754200 on low is the most frugal choice for a bedroom. **Is a ceramic heater or an oil-filled radiator better for a bedroom?** If you warm the bedroom before bed, a ceramic heater: it's fast and you switch it off right away. An oil-filled radiator pays off when you spend hours in the room, like a home office. **Can I plug a space heater into a power strip?** No. Lasko and De'Longhi both say to plug it straight into a wall outlet. Power strips and extension cords aren't built for a continuous 1500 W load and can overheat. **Can I use a regular space heater in the bathroom?** Only if the maker says it's suitable, ideally with a GFCI outlet or an ALCI plug, and with the clearances from tub and sink listed in the manual. That's why we pick the Lasko CD08200 for bathrooms. **Why does my space heater keep tripping the breaker?** A 1500 W heater uses most of a 15-amp circuit. If a microwave or hair dryer runs on the same circuit, the breaker trips. Move the heater to another circuit or use the low setting. *Note: PicksDesk takes part in the Amazon Associates programme; prices are indicative market ranges to be checked on Amazon. The editorial team does not physically test products: assessments rely on official specs, verified reviews and specialist press.*