Lasko FH515 Review: DUO Comfort 42-Inch Fan and Heater
Lasko's DUO Comfort FH515: a 42-inch tower that heats with 1500W and cools as an oscillating fan, with 3 heat settings, a child lock, a tip-over switch and a 3-year warranty.
By Daniel Brooks
Updated October 22, 2026
The Lasko FH515 is the 42-inch DUO Comfort tower: a 1500W heater in winter and an oscillating fan in summer, controlled from one remote. It has the strongest track record among the fan and heater combos on our list of tower fans, with a 4.3 out of 5 average from 5,380 ratings, and Lasko backs it with a 3-year warranty.
Our Verdict
The FH515 is our top fan and heater combo because it does both jobs well and puts safety first. Widespread oscillation moves warm or cool air across large rooms, the remote handles three heat settings, the fan speeds, oscillation and an 8-hour timer, and overheat protection, a cool-touch exterior, a tip-over switch and a child lock are all ETL certified.
It uses an AC fan motor and weighs 11.5 pounds, and the listing gives two different fan speed counts. On heat, it must go into a wall outlet.
Lasko DUO Comfort 42-Inch Fan and Heater (FH515)
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Lasko |
| Model | FH515 (DUO Comfort) |
| Type | Tower fan and space heater |
| Height | 41.89 inches |
| Footprint | 12.5 x 12.5 inches |
| Heater | 1500W, 3 heat settings |
| Fan | 4 quiet fan speeds in the specifications |
| Oscillation | Widespread |
| Timer | 8 hours |
| Noise Level | 44 dB |
| Safety | Overheat protection, tip-over switch, cool-touch exterior, child lock |
| Weight | 11.5 pounds |
| Warranty | 3 years |
Heating Performance
On heat, the FH515 delivers 1500W of quiet warmth with three settings, and widespread oscillation moves it across large rooms so every corner of a bedroom or living room is covered. Lasko positions it as a primary space heater for winter.
Use the 8-hour timer at night so the heater does not run until morning.
Cooling Performance
In summer, the same tower becomes an oscillating fan. The specifications list four quiet fan speeds, while one feature line mentions eight, so expect four. The specifications also list a 44 dB noise level.
Safety
Safety is the FH515’s strongest point. Overheat protection, a cool-touch exterior, a tip-over switch and a child lock are all ETL certified, making it a sensible choice for homes with children and pets.
Like any 1500W heater, plug it directly into a wall outlet, not an extension cord, and keep it a few feet from bedding and curtains.
Controls and Portability
The remote handles the heat settings, fan speeds, oscillation and timer, so you can stay on the couch or in bed. A built-in handle lets you move it from the home office to the living room.
Warranty
Lasko backs the FH515 with a 3-year warranty, three times the usual term for tower fans and a meaningful plus for a heater you will run every winter.
How It Compares
Against DREO’s MC706, the Lasko has a much larger ratings base and a longer warranty, while the DREO adds a DC fan motor, 12 fan speeds, 120 degree oscillation and an ECO thermostat. Against Shark’s TurboBlade Cool + Heat, the Lasko is simpler and costs much less, while the Shark adds pivoting airflow and Thermo IQ heating.
Lasko’s 38-inch FHV820 is a shorter, high velocity DUO with the same 3-year warranty.
Setup and Everyday Use
In winter, set the heat level, aim the oscillation across the room and use the timer at night. In summer, switch to fan mode and use the same remote for speed and oscillation.
Keep the heater a few feet from furniture and curtains, and give it its own wall outlet. Dust the intake before the heating season starts so it runs efficiently.
Pros and Cons
| Pros | Cons |
|---|---|
| 4.3 average from 5,380 ratings | AC fan motor |
| 3-year warranty | Heavy at 11.5 pounds |
| Tip-over switch and overheat protection | Fan speed count varies in listing |
| Cool-touch exterior and child lock | Needs a wall outlet on heat |
| Remote with 8-hour timer | No thermostat display listed |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Bedrooms and living rooms year-round | People who only need a fan |
| Homes with kids and pets | Shoppers who want smart control |
| Buyers who value a long warranty | Rooms without a free wall outlet |
| Anyone saving floor space | Buyers who want a DC fan motor |
For more options, see our picks for the best tower fan and heater combos and the best Lasko tower fans.
Final Verdict
The Lasko FH515 is a safe, proven fan and heater combo with a 3-year warranty and a large ratings base. It is the easiest way to get one appliance for every season. You can check the current price and details for the Lasko DUO Comfort 42-Inch Fan and Heater (FH515).
Frequently Asked Questions
How much heat does the Lasko FH515 produce?
It is a 1500W heater with three heat settings.
Does it have a tip-over switch?
Yes. It also has overheat protection, a cool-touch exterior and a child lock.
How long is the warranty?
Lasko gives a 3-year warranty.
Does it have a timer?
Yes. An 8-hour timer.
Can I plug it into an extension cord?
No. On heat, plug it directly into a wall outlet.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.