Lasko 12-inch Ceramic Utility Heater (CU12510) review

The Lasko CU12510 is a compact ceramic utility heater with two heat settings, a digital thermostat and an eight-hour shutoff countdown. The useful detail is its adjustable feet: folded down, they raise the heater and direct warm airflow upward. The manual-linked controls and operating limits matter more than the “utility” label, though. This is a supervised supplemental heater for residential indoor use—not a commercial or industrial shop heater—and it is not a fan-only model.

One current black model, with a compact but not clearance-free body

Lasko’s U.S. All Heaters listing identifies a single Black CU12510 SKU. Its page calls it a 12-inch heater and lists an 11.8-inch-high, 8.6-inch-wide, 12.5-inch-deep body. Lasko claims coverage up to 150 square feet; this is not an independent room-heating result.

The page lists 120 volts, up to 1,500 watts and an overall 900-to-1,500-watt range. The linked manual is more specific about one setting: electronic High is 1,500 watts. It names a separate Low setting without stating its wattage. If you need an exact lower-mode draw to plan several appliances on one circuit, that value is unknown rather than safely inferred from the advertised range. Weight is omitted because the page’s pound figure conflicts with variant grams of unclear product-versus-shipping basis.

Two heat settings, a setpoint and a real off countdown

The model-linked manual covers both CU12510 and CU12515, but the two controls are not interchangeable. CU12510 is the electronic version: pressing Power starts it on High; the mode control switches to Low, and there is no separate fan-only operation in its electronic instructions. The Fan Only setting shown elsewhere in the combined booklet belongs to the knob-operated CU12515. That variant distinction matters if you want summer air movement or the lowest possible heat draw.

CU12510 has digital automatic temperature control. You can set a room target, and the display returns to the room temperature; it does not show the temperature of the air leaving the heater. The manual says the heating cycle stops once the room reaches two degrees above the selected setting and restarts one degree below it. Pressing Mode cancels that automatic temperature behavior and returns the heater to continuous High. The materials checked do not state the available setpoint range or temperature accuracy.

The timer is an elapsed shutoff countdown, up to eight hours in one-hour steps, and the product page says it works in any function or speed. It does not start the heater later. A countdown can help end a supervised session; it does not turn the unit into an unattended or scheduled-start appliance. A delayed start must be verified separately.

Why the feet matter—and where the marketing needs context

The product page and manual both identify adjustable feet. The manual says they can be flipped down to elevate the unit and raise the heated airflow; it does not give an angle range or describe powered tilt. This is a way to aim air toward a standing-height task, not a powered vertical sweep or a heater that oscillates side to side. No oscillation is documented. The page also describes a simple-access EZclick permanent filter compartment, and the manual says to vacuum the filter/intake grille with a brush every two weeks. Unplug before cleaning and do not open the heater casing.

Lasko markets this model for garages, shops and basements, but the model manual says residential use only and excludes commercial, industrial, agricultural and hazardous locations. It also warns against areas where gasoline, paint or flammable liquids are used or stored. I would not select it for a trade shop or an industrial work bay. A residential space must still be dry, non-hazardous and compatible with local requirements; never let marketing photography replace the manual’s placement rules.

A safe plan is part of the fit

For a compliant plan, place the heater on a firm, level floor, keep three feet clear in front and one foot at the sides and rear from combustibles, and plug directly into a 120-volt wall receptacle. The manual prohibits extension cords, power strips, surge protectors, outlet adapters and sharing the same outlet or circuit with other devices. Keep the intake and exhaust uncovered and the cord out of walkways. The manual rules out bathrooms, laundry areas, wet or damp locations, outdoor use and hazardous areas, and says not to leave the heater running unattended.

The page lists a tip-over switch, overheat protection, an ETL listing and a cool-touch exterior claim. Those are documented features or manufacturer claims, not permission to reduce clearances or supervision. If the thermal overload trips, the manual says to unplug the unit and wait ten minutes for it to cool before resetting it. Lasko lists a three-year limited warranty for the original purchaser, subject to its terms.

Who should choose it?

Choose the CU12510 if a compact floor body, two heat choices, setpoint cycling, an eight-hour off countdown, and manually raised airflow all match a supervised dry-room routine. It can meet a 12-inch body-height cap (the published height is 11.8 inches), a two-level minimum, a documented countdown, or an essential upward manual-aim feature. Those answers do not waive the larger operating-clearance envelope. It fails a three-level minimum, a required remote or app, a fan-only mode, a known side-to-side sweep, a delayed start, or a bathroom/outdoor requirement.

For an even shorter product without manual airflow adjustment, the Lasko CC13700 is listed at 13.5 inches and has a hand-adjustable louver, but no remote or app. The CC20125 grows to 20.27 inches and adds three heat levels, two fan speeds while heating, a remote and a 12-hour countdown; its fan speeds are not a separate fan-only mode. The taller CT32150 adds three heat settings, a remote and base oscillation, though its manual does not specify an arc angle. These differences describe control and setup choices, not comparative heating performance. Read the compact Lasko comparison, then check the CU12510 product page and its CU12510/CU12515 manual for the exact model instructions.