Model comparison
Lasko 5775 vs 5165: timer, remote and body fit
The Lasko 5775 and 5165 are easy to confuse in a store listing: both are White ceramic tower heaters in Lasko’s current U.S. catalogue, both have two heat settings, a thermostat, oscillation and a roughly 23-inch marketing name. The useful differences are not an assumed performance ranking. They are the model-specific controls, published body measurements and each exact manual’s limits.
First, check the model number and body dimensions
The current Lasko product pages identify the 5775 as a single White SKU 5775 and the 5165 as a single White SKU 5165. Their titles round both to 23 inches, but the measurement fields are more precise: the 5775 is 22.5 inches high, 7.13 inches wide and 7.25 inches deep; the 5165 is 22.75 inches high with an 8.13-by-8.13-inch base. The 5775 is therefore a little shorter and occupies less listed floor width and depth, while the listed weights are close at 6.08 versus 6.0 pounds. These are body measurements only. The manual’s required open space, rather than the outline of the base, determines whether either one fits the intended spot.
They share a High-only thermostat limitation
Both models have High and Low heat; each exact manual identifies High as 1,500 watts, while the current product specifications give a 900-to-1,500-watt total output range without mapping the Low button to a particular wattage. Each manual says automatic temperature control works only on High. If your plan depends on an exact low setting or thermostat cycling while on Low, neither documented operating plan confirms it. The 5775 manual says that the initial setting is High at Max, then another Power press selects Low and a third turns the heater off.
Both pages state coverage up to 150 square feet, a manufacturer claim rather than a room test. Neither has independently measured temperature rise, evenness, sound or running cost here. Insulation, drafts, ceiling height and the central heat system matter more than treating a stated area as a promise.
The timer and remote are the clearest buying difference
Model 5775 has a one-to-seven-hour auto-off countdown and no included remote. Model 5165 has a one-to-eight-hour auto-off countdown and an included remote; its remote needs two AAA batteries that are not supplied. On either model, the timer stops an operating heater when the period ends; it does not schedule a later start. The manuals do not establish app control. If you simply want a shorter countdown and direct top-panel controls, the 5775 covers that job. If reaching the unit is inconvenient and a remote matters, the 5165 is the better documented control match, not necessarily a better heater for every room.
Oscillation is not a numeric swing specification
Both models can oscillate side to side, but the inspected manuals and current product pages do not list an angle. Do not select either to meet a numeric minimum such as 70 or 90 degrees. Both are fan-forced heaters with no separate fan-only mode documented. The 5165 manual says its fan continues briefly after thermostat cut-off; that short cooling interval is not selectable fan-only operation. In automatic temperature control, the 5775 manual says oscillation stops when the target is reached and resumes after heating restarts.
The safety instructions remain the same kind of constraint
Each model is for supplemental residential heat and requires a stable indoor floor location, a direct 120-volt wall receptacle and generous clearance from combustibles. The exact 5775 manual says at least three feet in front and one foot at the sides and rear, forbids extension cords and power strips, and excludes outdoor, bathroom, laundry, wet and damp use. It also says not to leave the heater operating unattended. The 5165 manual likewise rules out bathroom, laundry and wet or damp use and requires its own stated clearances. Do not choose a model because the slightly smaller body seems to make a tight space safe; keep every exact manual’s full operating zone clear.
Which one matches the routine?
Consider the 5775 when you do not need a remote, a seven-hour shutoff countdown is enough, and a modestly narrower body helps with placement after you have reserved the required clearances. Consider the 5165 when its remote and extra countdown hour suit your routine. Choose neither if remote independence is essential to anyone using it, if you need a delayed start, fan-only air, a verified swing angle, bathroom permission or operation without supervision. Confirm the model number on the appliance and retain its own manual: these are related towers, not interchangeable configurations.
Read the Lasko 5775 assessment · Read the Lasko 5165 assessment · Lasko 5775 product page · Lasko 5165 product page