Model # H5511

Internet #205317305

Optimus 400-Watt to 800-Watt Infrared Quartz Radiant Heater

Discontinued Optimus

400-Watt to 800-Watt Infrared Quartz Radiant Heater

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Frequently Bought Together

Product Overview

Infrared quartz radiant heater provides instant sun-like warmth for fast focused spot heating. This energy-efficient unit has two heat settings and safety shut off. This unit has cool touch housing and ultra-quite operation.

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Area Heated (Sq. Ft.)
Bulb Type
Color Family
Heater Controls
Heater Type
Heating Product Type
Infrared Bulb Heater
Heating Technology Type
Mount Location
Number of Heat Settings
2 Heat
Portable Heater Features
Nonslip Base,Tip-Over Safety Switch
Product Weight (lb.)
Wattage (watts)

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
Optimus 1 Year Limited Warranty

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Customer Questions & Answers

How do I get my replacement heater? I purchased & warranty. It had been returned but did not see bulb broke til home

was only heater in the state and had been returned I purchased it and warranty with broken bulb. Was told to just bring in when new ship ments and discontinued.
Asked by: Cricket
Hi Cricket, I believe it would be best to reach out to the manufacturer, Optimus for assistance. I have linked their website below with their contact information page so that you may receive the best details from their specialists. Hope this helps! We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot!
Answered by: THDSupport
Date published: 2017-01-09
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Customer Reviews

400-Watt to 800-Watt Infrared Quartz Radiant Heater is rated 3.4 out of 5 by 8.
Rated 4 out of 5 by from Good purchase Keep in mind this is an 800 watt heater, and is good for a SUPPLEMENTAL source of heat, and as this Heat is Quartz, there is no fan noise - just like warm sunshine filling the room, but unlike the dry, noisy, fan motor which is unfriendly to your skin - DRY - though its Watt rating is often higher, the draw backs of fan Heat make a silent Quartz Heat a good choice.
Date published: 2014-12-27
Rated 4 out of 5 by from 400- watt to800- watt infrared Quartz radiant heater So farthe heater has worked well. We really haven't had real cold weather yet this winter. It is being used in a greenhouse. Things are growing, such as lettuce, spinich and kale. The safety features are good,making it worry proof.
Date published: 2014-12-10
Rated 5 out of 5 by from Intense heat Intense heat, portable ideal for small spaces in office doesn't come with fan for this needs more time for distribute heat in big places, or need move it. comes with two modes of operation is the best seller in heat intense/watt operation.
Date published: 2015-03-06
Rated 2 out of 5 by from Disappointed I've used quartz heaters for decades and this is the first one that stays on constantly when in use rather than turning off when it's reached a certain temperature and then turning back on as needed. I was also disappointed in having only 2 heat settings to choose from. It's very quiet and otherwise a nice little unit.
Date published: 2015-04-21
Rated 5 out of 5 by from Love this heater Had a similar heater at my prior office. Liked it so much ordered two for my new business. It heats well, is quiet and if tipped over it shuts off.
Date published: 2015-03-25
Rated 5 out of 5 by from A great heater The order came in a timely manner. Operates wonderfully and is very quite.
Date published: 2015-04-28
Rated 1 out of 5 by from Infrared Quartz Radiant Heater 400-800 watt. Does not put out heat unless you put it on 800 watt.
Date published: 2015-04-08
Rated 1 out of 5 by from It just stopped working after 2 weeks! I purchase a lot online and this is the first product in over 15 years that just stopped working. I didn't even use it that much. SinceI threw the box out , I will need to return it to the store but can't get there because of all the snow. I was trying to save some money when ordering this, but sometimes it's true, 'you get what you pay for.'
Date published: 2015-02-03
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