At the low prices at the time, I bought 4 of them.
Unlike a lot of radiant heaters that use a fragile glass, quartz halogen heating element, which are so bright it's like sitting in front of a bright yellow floodlight, or get dangerously hot, these use a durable nichrome & ceramic element that emits a very dim (but warm) red glow.
This is the smallest, lowest powered parabolic heater I ever found. Low power has some advantages in some situations, saves money, & reduces pollution.
There is no fan, so it's totally silent. Because it's only 300 watts, it does not get dangerously hot if nearby. But as with all heaters, you should use some common sense, like don't cover the heater or hang stuff over it, point it at curtains, or place it right next to bedding. I have one on a table about 3' away from the bed, yet I can feel the heat in bed on my face, about 7' away.
It has a standard, tip over, cut-off switch for safety.
This little thing is ideally suited as a desk or small area heater, but for it's low power consumption, it does put out a lot of heat towards what it's pointed at. Don't expect it to heat up an entire room like a 1500 watt or more heater. This heater only consumes 20% of the power. It will not be a suitable for your sole source of heat with the furnace off for a room or house if it gets near 0 degrees F outside. So buy several if you want to use these little heaters a lot to offset your heating bills.
Consuming such little power, they have the advantage of being plugged in most outlets & circuits shared by other stuff without overloading or overheating the outlet or circuit.
It'll take 5 of them to consume as much power as a standard, typical 1500 watt heater.
You save money because most people on the coldest days don't need to heat up the entire room nice & toasty, but only need to heat the area a lot where they're hanging out in. Thus, much less power is required to do it with these. Also, if you're in a drafty or poorly insulated older room, or one with high ceilings, your heat from traditional heaters may leak out fast or rise to the ceiling where you don't need it. Radiant heat feels warmer & is more efficient in those kind of rooms, by directing & concentrating the heat more towards the area it's pointed at.
Parabolic heaters focus the infrared heat in a concentrated direction like a spotlight would, instead of blowing it all over a room. Parabolic (dish) heaters focus this heat to a tighter area than other reflective types.
There's a lot of misconceptions & complaints about radiant heaters that simply are not true. They complain they do not heat up the whole room or as fast as other types of heaters. A 300 watt radiant heater will heat up an entire room just as fast & well as any other type of 300 watt heater, & any 1500 watt radiant heater will heat up a room as fast as any other type of 1500 watt heater would. But you'll feel hotter instantly in the direction a parabolic heater is pointed at instead of waiting for the heater to heat up the whole room.
The problem is people buy a 100-1200 watt radiant heater & expect it to warm up a whole room as fast & good as an over 1500 watt one would.
A 1500 watt or higher heater may strain, overheat, or overload your wiring more, & overheat the cord or outlet for regular or continuous use.
Update: One reviewer said, "Could be the radiant aspect of it not being able to penetrate sneakers and jeans. But since I prefer not to work naked, I replaced with a small ceramic unit that does the trick."
Nope, I believe it's because the heater is only a small, low powered 300 watt heater & your ceramic heater is probably 800-1650 watts. If you were to put an 800-1200 watt parabolic heater under your desk, you'd probably set your pants on fire.
QUOTE: "They are not heat dish. It was conventional electric heater. They are imitations, just the Style is like the heat dish. They even don't have auto thermos. No energy saver."
Reply: These ARE a heat dish & NOT a conventional heater, or more precisely, they're a parabolic heater... which is a heating element with a parabolic reflector. They focus a beam of heat to a narrow area it's pointed at. Like all of these types, some heat will still rise off the top of the heater too by convection too.
I consider these the safest types of heaters because they don't get too hot & don't make the house wiring warm or overload it at only 300 watts.
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From the manufacturer
- Instant, Sun-like Warmth Radiant Heat Source
- Energy Savings of 300 Watts
- Uses Less Energy Than Conventional Heater
- Cool Touch Housing. Ultra Quiet Operation
- Tip-Over Safety Switch
- Internal Heat Limiting Thermal Cut-off Safety Device
- Built-in Carrying Handle
About this item
The Optimus H-4110 9-Inch Dish Heater provides direct warmth while conserving energy.This device saves you up to 300 watts of energy. Designed to provide sun-like warmth, the Optimus Dish Heater comes with a variety of safety features, including an internal heat-limiting system, a thermal cut-off function and tip-over safety switch that prevent fires from drops or overheating. The tip-over switch is a particularly important feature as many fires are started from space heater drops. This electric dish heater is constructed with cool-to-the-touch housing, which means you do not have to worry about burns when carrying it. The device only weighs around 3 lbs, so it is no major hassle to move. Additionally, the device includes a built-in carry handle for easy portability from room to room.It is small enough to sit on a dresser, nightstand, end table or other small piece of furniture.
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Optimus Enterprise, Inc
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This Item  Optimus 9" Dish Heater, Standard, Black |  |  |  |  |  | |
| Price | — | $39.99 | $39.99 | -20% $31.99 Typical: $39.99 | $56.69 | $19.99 |
| Delivery | — | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 |
| Customer Ratings | ||||||
| Safety Features | ||||||
| Heat output | ||||||
| Temperature Control | ||||||
| Sold By | — | INSS | RWEA | Besttey | Amazon.com | Homedot |
| power source | ac | Corded Electric | ac | ac | Corded Electric | Corded Electric |
| heating method | Radiant | radiant & infrared | Radiant, Convection, Forced Air | Radiant | Radiant | fan & forced air, Convection |
| heating coverage | — | — | 160 square feet | 161 square feet | 161 square feet | — |
| heat output | 300 watts | 800 watts | 800 watts | 800 watts | 800 watts | 600 watts |
| weight | 3 pounds | 6.99 pounds | 3.15 kilograms | 3.96 pounds | 4.18 pounds | — |
Reviews with images
The dog loves it
Someone is blocking the heat! My dog likes it. And the grate is cool enough I'm not worried she'll burn herself. I have handled this while it is on and I don't feel like I have to worry about her burning the house down if I leave the room for 15 minutes.It has a lil button that pokes out on bottom to make sure it isn't tipped over. It doesn't work well on carpet - I have it on the book under my desk. On the carpet, the button would stay pressed in far enough and it'd shut off.The main items to know are that about 3 ft away and things get cool rather fast. Note how close the dog lies and she isn't burning hot. She did move away a bit as she heated up. Since it heats what it points at, it works better on bare skin than through clothing. And the side of me that isn't facing it seems cooler than when heat is being "fanned" at you by conventional space heaters. I doubt anything with a fan will work anywhere close as well for only 300 watts tho. I'm going to keep using it since I typically just need the chill taken away a bit300 watts isn't nearly enough for a really cold room to heat up. But after hours, nothing near it is anywhere close to warm enough for fire. My kitchen is cooler than where the thermostat on my house is. This worked well for being pointed into the kitchen and getting the chill out of the air while I was prepping.It's supposed to shut off after 8 hrs but I've not tested that yet. I feel safer using this and I know I'm saving electricity over the 1500 watt units (5 times as much electricity for those).Some reviews complained about build quality. I don't know what they are talking about. This is about the same fee of any fan this size. No issues with mine so far.
Top reviews from other countries
Cliente de Amazon
Caliente pero está pequeño
Reviewed in Mexico on December 14, 2019Cliente de Amazon
No es oscilatorio y no calienta ni los cuartos.
Reviewed in Mexico on January 19, 2020
RJ
Stopped working after three weeks of slight use
Reviewed in Canada on October 28, 2019Peter Rodenburgh
This product is a great PERSONAL infrared heater
Reviewed in Canada on January 13, 2020