The short answer
For most studios and small apartments, get the DREO Solaris 718. Four independent hands-on tests agree it warms a small room quickly, CNN Underscored measured it at 41 dB on its loudest setting, and it has a real digital thermostat and a remote. Its Trust Score is 81, with medium confidence.
If you want heat with no fan noise at all in the room where you sleep or work, the De'Longhi Mica Panel Heater HMP1500 has no fan. It's wide and its front panel gets hot, so it suits a free stretch of wall better than a gap beside the bed. If floor space is the problem, the DREO Solaris Slim H3 stands on a 5.9 in circle.
One thing to check first: on October 29, 2026, DREO and the CPSC recalled about 338,800 DREO DR-HSH015 heaters (sold as the Whole-Room Heater 715) because they can overheat and catch fire. None of the heaters on this page is that model, but if you own one, stop using it and see the CPSC recall notice.
How we picked
We haven't tested these heaters ourselves. Every score on this page comes from public evidence: hands-on tests by CNN Underscored, Family Handyman, Reviewed, HGTV, Bob Vila and Apartment Therapy, plus the makers' spec sheets and warranty terms, the CPSC recall database and USPTO trademark records. Each product's review page lists every source with the date we checked it.
We only scored heaters with at least two independent hands-on tests. Noise figures come from CNN Underscored, the one source that measured the loudest setting of most heaters here with the same method.
Each pick gets two separate numbers:
- Trust Score: how safe the purchase is, from 0 to 100. It checks independent evidence, safety, how transparent the maker is, the brand and the warranty. It doesn't say which heater works best.
- Small-space fit: how well the heater suits a small apartment, from 0 to 100. It weighs tip-over and overheat safety (35%), noise (25%), floor footprint (20%) and thermostat control (20%). A heater whose tip-over switch is missing or slow can't score above 50. Price never enters either number.
What matters in a small apartment
- Every 1,500 W heater makes the same amount of heat. Electric heaters turn all the power they draw into heat, so a 1,500 W heater gives about 5,100 BTU an hour whatever its shape or price. What differs is how fast it spreads that heat, how loud it is and how safe it is. A heater sold for "1,000 sq ft" doesn't make more heat than one sold for 200; HGTV found none of the large-room heaters it tested matched their coverage claims.
- Tip-over and overheat shutoff. In a small room the heater sits close to a bed, a sofa, curtains or a desk, and it's easy to knock over. All four picks have both switches, but they don't react equally fast: CNN Underscored's DREO 718 cut power about 20 seconds after it fell, while Family Handyman's Atom One took about two minutes.
- Clearance and outlets. Keep 3 ft between the front of the heater and anything that can burn, and plug it straight into a wall outlet, never an extension cord or power strip. That's the advice on DREO's 718 product page and from Tom's Guide and Bob Vila. A 1,500 W heater draws about 12.5 A at 120 V, most of a standard 15 A circuit, so in an older building don't run it on the same circuit as a kettle or a microwave.
- Noise. In a studio the heater runs where you sleep and work. A fan heater is never silent; the panel heater here has no fan at all.
- A real thermostat. A thermostat that holds a set temperature stops a small room from overheating and cuts running time. The three DREO picks let you set it in 1°F steps.
- Don't leave it running while you sleep or go out. Tom's Guide and Bob Vila both advise switching a space heater off when you go to bed or leave the room. Use it to warm the room before bed, then turn it off.
Compare side by side
| Spec | DREO Solaris 718 | De'Longhi Mica Panel Heater HMP1500 | DREO Solaris Slim H3 | DREO Atom One |
|---|---|---|---|---|
| Trust score | 81/100Top | 67/100 | 68/100 | 62/100 |
| Small-space fit | 96/100Top | 70/100 | 80/100 | 73/100 |
| Price range | $100–150 | $100–150 | $50–100 | $40–60 |
| Footprint (W × D, in) | 7.9 × 7.9 | 27.4 × 9.84 | 5.9 × 5.9 | 6.7 × 5.5 |
| Height (in) | 29.7 | 22.5 | 15.8 | 10.3 |
| Weight (lb) | 8 | — | 4.63 | 3.8 |
| Power (W) | 1500 | 750 / 1,500 | 1,000–1,500 | 1,000–1,500 |
| Heat settings | 5 heat, 3 fan | 2 | 3 heat, Eco, fan | 3 heat, Eco, fan |
| Thermostat | Digital, 41–95°F in 1°F steps | Adjustable dial | Digital, 41–95°F in 1°F steps | Digital, 41–95°F in 1°F steps |
| Loudest setting (dB) | 41 (CNN Underscored) | — | 47 (CNN Underscored) | 50 (CNN Underscored) |
| Warranty | 1 year | — | 1 year | 1 year |
| Fan | — | None | — | — |
| Wall mount | — | Bracket included | — | — |
Best space heater for a small apartment
The DREO Solaris 718 is a 1,500 W tower that stands on a 7.9 in square base. In CNN Underscored's 234 sq ft test room it warmed the area in front of it by 21°F in 15 minutes, and in Bob Vila's 216 sq ft room it raised the temperature from 60°F to 70°F in just under 30 minutes. It was CNN's quietest pick at 41 dB, and Family Handyman found its low mode nearly silent. Its tip-over switch beeps first, then cuts the power.
It's almost 30 in tall, the remote uses symbols with no labels, and DREO's warranty is only one year. Its Small-space fit is 96, the highest here.
Quietest space heater for sleeping in a studio
The De'Longhi HMP1500 is a micathermic panel with no fan, so you don't hear it running. In Reviewed's lab it raised a 1,350 cu ft room by 6°F in an hour, and in Bob Vila's 156 sq ft room it added 5°F in 18 minutes. Bob Vila confirmed its tip-over switch.
Its front panel gets hot, so keep it away from bedding and out of reach of children, and it's 27.4 in wide on its feet. It comes with a wall bracket, but check your lease before drilling. Its Trust Score is 67: De'Longhi has no CPSC recalls in the last five years, but we couldn't find this heater's warranty term on De'Longhi's site.
Smallest space heater for a desk or a tight corner
The DREO Solaris Slim H3 takes 5.9 × 5.9 in of floor and stands 15.8 in tall. It was Bob Vila's overall pick in October 2026, and Apartment Therapy's editor has heated a Brooklyn one-bedroom's living room with it for two winters. CNN Underscored was less impressed: it measured 47 dB and found it weaker than the 718 at heating a desk area.
It's a good choice for warming one person at a desk or beside the bed. For a whole studio, the 718 heats faster and runs quieter.
Budget pick, with a caveat
The DREO Atom One has a list price of about $50 and still has a digital thermostat in 1°F steps, oscillation and a remote. Family Handyman measured its test room rising from 72°F to 80°F on low, and CNN Underscored found its grille wasn't scorching.
The caveat is safety. When Family Handyman's tester set it on its side, it beeped at once but took about two minutes to shut off, and CNN measured 50 dB, the loudest here. Its Trust Score is 62, with low confidence because only two independent tests exist so far. If you can spend more, the Slim H3 is as small and quieter.
Running costs
A 1,500 W heater uses 1.5 kWh for every hour on high. Multiply by your electricity rate: at an example rate of 17 cents per kWh, that's about 26 cents an hour. The DREO heaters' Eco modes and the De'Longhi's 750 W setting cut the draw once the room is warm. A space heater saves money only when it lets you keep the rest of your home cooler; Bob Vila notes that running one alongside central heating won't save energy.
What we haven't scored
- The Vornado MVH was Family Handyman's best portable pick, and Vornado gives a 5-year warranty, but we've found only one independent hands-on test so far. Vornado has also had three heater recalls since 2023: SRTH Small Room Tower Heaters in 2023 and 2026, and VH2 Whole Room Heaters in 2025.
- The De'Longhi Dragon oil-filled radiator was Bob Vila's best radiator pick in October 2026, but it's the only independent test we've found. Bob Vila heard no fan noise, only thermostat clicks, but it weighs about 28 lb.
- The Lasko 754200 is cheap and small, but Tom's Guide left it out of its picks because it has no automatic shutoff, and Reviewed lists overheat protection but no tip-over switch.
We'll score these when there's enough independent evidence.
Why every Safety score is low
UL and ETL listings show that an independent lab tested a heater against US safety standards, and Tom's Guide, Bob Vila and CNN Underscored all advise buying a heater that carries one. We give credit only for a listing we can find in a public certification directory, not for a logo on a product page, and we haven't confirmed any of these four yet. All four lose those 8 points until we do.
DREO's three heaters also lose 8 points because of the October 2026 recall of the DR-HSH015, a different DREO heater. That recall doesn't mean these models are unsafe, but our rules count recalls by brand and category for five years. De'Longhi has no CPSC recalls in that period.
Prices
We show a price range from the makers' stores and list prices rather than a live price, and heaters are discounted often in the fall. Check the current price at the retailer before you buy.