Search for Lasko space heater decibels and you will usually find a number on Lasko's own page, but most of the time that number is zero. Lasko's heater pages carry the same two rows as its fan pages, "Noise dB-Low" and "Noise dB-High", both in dBa. On five pages they hold a real figure. On eighteen they read 0 dBa, and on the rest they are missing.
This guide lists every current US Lasko heater with a usable published figure, ranked quietest first within its own type and only against figures from the same row. On October 5, 2026, we counted 56 Lasko heater pages on lasko.com: 26 tower heaters, 12 table top heaters, 11 console heaters, 3 utility heaters, 3 fan and heater combos and 1 low profile baseboard heater. Lasko listed no wall-mount, oil-filled or pedestal heater that day. We do not rank Lasko against other brands here; for how it compares, see our quietest space heaters guide.
Our picks are listed above, with full specifications for each.
Every figure on this page comes from the specification table on lasko.com, where a Lasko heater with a figure gets a "Noise dB-Low" row and a "Noise dB-High" row, both in the unit "dBa". On Lasko's fan pages the feature text often repeats the low figure, so you can tell it belongs to the lowest speed. On the heater pages it never does. Lasko does not say whether "Low" and "High" mean the low and high heat settings, the lowest and highest fan speed, or something else, and it gives no measuring distance, room or test standard.
That leaves us with a narrow, honest reading: these are Lasko's own figures for each heater at two ends of something, in A-weighted decibels. We quote each one as Lasko prints it, rank low rows only against low rows and high rows only against high rows, and keep each heater type in its own list. Our explainer on why decibel ratings rarely compare across brands covers why that caution matters even inside one brand, and dBA explained covers the weighting behind the unit.
We also opened every user manual Lasko links from its heater pages, 53 documents in all. None of them gives a decibel figure.
Tower heaters, quietest first
Lasko listed 26 tower heaters. Three print a usable figure.
Low row, lowest first.
- 24" Full-Circle (CT24362): 37 dBa low, 44 dBa high. $99.99, in stock.
- Ready Heat 14" (CT14401): 41 dBa low, 43 dBa high. $49.99, in stock.
High row, lowest first.
- Ready Heat 14" (CT14401): 43 dBa.
- 24" Full-Circle (CT24362): 44 dBa.
- 16" digital tower with remote (CT16670): 47 dBa, with no low row. $49.99, black in stock.
So the order flips between the two rows, by small margins. The Full-Circle is 4 dBa lower on low, the Ready Heat 1 dBa lower on high. The Ready Heat's two rows sit only 2 dBa apart, the narrowest spread on any Lasko heater page, while the Full-Circle's sit 7 apart.
Two Ellipse heaters make a quiet claim in words instead of the table. The Ellipse 18" tower (CT18950, CT18951, $89.99) says in its description that it offers "quiet operation at" under 40dB, and its table reads 0 dBa for both rows. We set it aside, along with the 12" Ellipse below.
Seven more tower pages read 0 dBa: the 20" Fireplace tower (CA20150), the 16" tower without remote (CT16450, CT16451), two 22" towers (CT22850 and CT22495, CT22498), the Artisan 16" (CX16550, CX16350), the 32" Digital (CT32150) and the Ellipse 18". Two 23" towers (751320 and 755320) have a single high row that reads 0 dBa. The other fourteen tower pages, including the 27" Bladeless (AW310, AW300), the 22" Smart (AR122) and the Halo 22" (CT22520), have no noise row at all.
Console heaters
Lasko listed 11 console heaters. Only one has a usable figure.
- Motion Heat Plus 23" (CC23161): 44 dBa low, 48 dBa high. $99.99, in stock.
With nothing to rank it against, we call it neither the quietest nor the loudest Lasko console. Two console pages read 0 dBa in both rows, the Motion X 27" (CC27350) and the 24" console (CC24810), both sold out. The remaining eight, including the Revolution II (CC23645), have no noise row. The Revolution II has the best documented Night Mode of any Lasko heater, which our bedroom heater guide covers in detail.
Fan and heater combos
Lasko sells three heaters that double as tower fans, and one prints a figure.
- DUO Comfort 38" (FHV820): 34.9 dBa low, 55.4 dBa high. $159.99, white in stock.
It has 3 heat settings and 4 fan speeds, "from low to high velocity", and the page counts 7 speeds in all. Lasko does not say whether the rows describe the heater or the fan. We keep it in its own group for that reason, and we do not set its 34.9 dBa against the tower heaters' low rows. The same 34.9 and 55.4 dBa appear in our Lasko fan decibels guide, where it also sits outside the fan rankings. The DC version (FHV830) shares the manual but its page has no noise row, and the DUO Comfort 42" (FH500, FH515, FH610) has none either.
Lasko's 12 table top heaters include its MyHeat personal heaters and the Ellipse 12". None prints a usable figure. The Ellipse 12" (CD12950, CD12951, $69.99) comes closest. Its page says "Operating at less than 40 dB, this portable space heater delivers warmth with minimal noise, making it ideal for quiet spaces", and its description mentions "quiet under-40-decibel operation", while its table reads 0 dBa for both rows. That is a ceiling, in plain dB, with no setting or distance, so we quote it and rank it nowhere.
Five other table top pages read 0 dBa in both rows: the 9" oscillating heater (CD09475), the MyHeat Max 9" (CD09100 and CD09101), the MyHeat Mini 6" (200, 201) and the Whirlwind Heat 13.5" (CS12350, CS12380). The rest, including the 200 watt MyHeat (101) that our space heater guide picks for under a desk, have no noise row. None of the three utility heaters, the two 12" utility models and the 17" Infrared Quartz (QB16103), has a noise row. The Low Profile baseboard heater (CL22100) reads 0 dBa twice.
What Lasko says makes its heaters quiet
Lasko's heater pages use the word quiet freely and back it with a figure rarely. "Two quiet heat settings" appears on several 16" and 23" towers, "a quiet blower" on the 19" fireplace heater and the Infrared Quartz heater, and "fast, quiet comfort" on the Elite Collection 22" tower. None of those pages prints a usable decibel figure. Lasko has no named quiet technology for heaters to match WhisperForce on its fans; the only WhisperForce heater product, the DUO Comfort DC, has no noise row.
What the manuals do describe is the thermostat, which decides how often you hear the heater change its tone. On the Ready Heat and the DUO Comfort, Lasko's Auto Eco runs on "HIGH heat when the ambient temperature is less than the set temperature" and steps to "LOW heat when ambient temperature reaches set temperature", staying on low "until ambient temperature reaches 2 degrees Fahrenheit above set temperature". Then the element switches off, and the manual adds that the "fan will continue to run for 15 seconds after the heater element is turned off". For a quiet room, a heater that settles on low is the one to want, whatever its high figure.
Upkeep matters too. Several Lasko heaters carry a removable filter, and the DUO Comfort manual asks owners to clean the filters "every two weeks; this will help to maintain optimum performance". A clogged intake makes any fan work harder.
What the numbers mean in a room
Decibels are logarithmic, and roughly every 10 dBa sounds twice as loud. By that rule, the DUO Comfort's own two rows, 34.9 and 55.4 dBa, are about 20 apart, so its high row would sound roughly four times as loud as its low row. The Full-Circle's 37 and 44 dBa are 7 apart, a clear but smaller step. Gaps of one to four decibels, like 37 against 41 on low or 43 against 44 on high, are real but modest, and with no distance given they are too small to decide on. Our decibel chart sets these figures beside a whisper, a fridge and normal conversation.
All of these are fan heaters, so they make noise whenever they run. If you would rather have no fan at all, see our guide to the quietest oil-filled radiators, where no maker publishes a measured figure either. Lasko did not list an oil-filled radiator on October 5, 2026.
Where Lasko's pages disagree with themselves
- Placeholders. 0 dBa in both rows on sixteen heater pages, and in a lone high row on two 23" towers.
- Ellipse 12" and 18". A claim of under 40 dB in the text, 0 dBa in the table.
- Full-Circle CT24362. "Battery Use: Required - Included" next to "Battery Included: No", while the accessories list includes AAA batteries.
- Coverage. The Full-Circle and the DUO Comfort are described as heaters for large rooms, while their tables list 150 Sq. Ft.
Stock and price on the day we checked
We checked every price on lasko.com on October 5, 2026. All five heaters with a usable figure were in stock: the Full-Circle and Motion Heat Plus at $99.99, the Ready Heat and 16" digital tower at $49.99, and the DUO Comfort at $159.99. Sixteen of the 56 heater pages showed every variant sold out that day, including the Revolution II, Motion X, Halo and DUO Comfort DC.
How we chose
We read Lasko's US heater collection and opened every one of its 56 heater pages. For each page we recorded the Noise dB-Low and Noise dB-High rows exactly as printed, any sentence mentioning decibels or quiet operation, the price and the stock status, and we searched every linked user manual for a noise figure. We grouped heaters by Lasko's own product types, ranked low rows against low rows and high rows against high rows within each type, set aside 0 dBa placeholders and text-only claims, and kept the fan and heater combo apart because Lasko does not say which mode its figures describe.
We did not measure any of these heaters. Every figure here is Lasko's own, quoted from lasko.com in Lasko's own words and unit, and Lasko states no measuring distance, test standard or heat setting for any of them.
