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Envi High-Efficiency Whole Room 120v Plug-In Electric Panel Wall Heater - 2nd Generation (HH3012T)

15.00 LBS
In Stock

Product Description


The HH3012T is a direct replacement to the HH1012T model. The Envi™ Wall-mounted Electric Panel Heater is one of the most efficient, stylish, and innovative space heaters ever developed. After 7 years we have finally refreshed the Envi Heater with a more stylish look. The HH3012T Envi Heater is a 120volt plug-in whole room heater and has a built in thermostat.


  • True Temperature-Controlling Thermostat. (Only models HH3012THW3012T and HW3022T)
  • Wall-Sens(TM) Technology, safely cuts power to heater if it is removed from the wall. (All models)
  • 475/500 watts - low wattage convection heating that doesn't dry out the air, won't trip the breaker but is still powerful enough to heat a 130sf to 150sf rooms.
  • Convenient Cordset storage inside heater to tuck away untidy power cord. (only Plug-in models)
  • Hardwired models also available, approved for commercial installation.  (HW3012T/HW3022T - with built in thermostat and HW3012N/HW3022N - without thermostat)
  • Conforms to UL & CSA (Canadian) safety standards (All models).
  • Available in Canada also. If you live in are in Canada, please click on www.eheat.com/canada to receive FREE SHIPPING to any location in Canada!

The Technology

The dual-stack convection technology featured in the Envi was born out of years of research and development to find a solution to effectively and safely heat a room using the smallest possible, amount of electrical heating energy.

Dozens of heating methods were evaluated to fine tune the Envi heater, but eventually the answer was found in a naturally occurring phenomena called the "stack effect". This provided the basis for and eventually we won a patent for the final Envi heater design.  Natural convection, fanless heating is enhanced by simulating multiple pathways, or “stacks,” inside the Envi heater.  This technology boosts the flow of cool air from the floor of a room, into the unit, and maximizes heat transfer out the top of the heater.  The resulting process creates a slow moving transfer of warm air around the room, effectively warming the occupants.

The result is a 100% pure convection, fanless heater that uses minimal energy but also effectively warms each room in a house or office - or any room or space for that matter!

What are the Benefits?

  • Economical - low wattage technology (only 475/500 watts). Costs as little as 4-5 cents an hour to run.
  • Efficient - 100% Pure Convection Heating
  • Innovative - New Patented Stack Convection Technology
  • Safe for children, seniors, and pets - Cool-to-the-touch (90°F), Wall-Sens(TM) technology and automatic thermal cutoff
  • Simple to install  - Installs in minutes, no drilling required
  • Slim - Just 2 inches thin
  • Stylish – Beautiful flowing curves compliment any room interior
  • Healthy - Fanless, non-forced air design that doesn't blow dust or allergens into the air and around the room.
  • Sleep friendly - Silent and auto dimming on/off power light in dark rooms, is helpful for light sleepers.
  • American Owned & Built – High Build Quality – ISO 9001 Quality Control Factory Certification
  • Heats Room Size – 130 to 150 square feet
  • Built in Thermostat - Better temperature control
  • Sturdy & Crack Resistant – high tech 21st Century durable materials will not crack or separate at the seams.
  • Industry Leading Warranty – 3 years
  • Easy to clean – smooth wipe clean surface
  • Cord Storage - Cordset can be stored inside the heater for a more attractive look.
  • Hardwired Approved - Hardwired models are certified and approved for permanent electrical installation under UL Safety Listing 2021. The Envi heater finally answers the need for a legal and safe, hardwired electric panel heater. (Models HW3012T, HW3012N, HW3022T and HW3012N)

Please review our Return Policy before placing an order.


Model Number: HH3012T
Voltage Rating: 120V, 4.17 Amps
Power Consumption: 475/500 Watts
Unit Size: 19.3 in. (W) x 2 in. (D) x 22.2 in. (H)
Unit Weight: 10 lbs (shipped weight 15lbs)
Color: Luxury White







Standard free shipping on all orders is NO SIGNATURE REQUIRED for delivery.


*Due to popular demand, stock levels may vary and will ship within 1-3 business days.

Write your own product review

Product Reviews

Previous | Showing reviews 21-40 of 314 | Next

  1. Heater / Company Review

    Posted by Ron on 10th Feb 2020

    I purchased this wall heater and for approximately 10 days the tracking stated that it was in process but not shipped. Unable to get response. However, this may have been attributed to the holidays and they were very responsive when they did respond and bent over backward to make things right. I was impressed with their wanting to make my experience a positive one.

    I am very pleased with the heater. We purchased it to take the chill out of our mudroom, that is located on backside of garage, has exterior wall on opposite side, is on a slab and has 10 foot ceiling. We live in the Midwest and have cold winters. The heater has performed as published and we have not had the thermostat setting on the unit higher than its lowest setting. It keeps the 20 x 10 x 10 room comfortable. It was extremely easy to install and the published safety features are accurate.

    I am purchasing another for our basement to get ahead of next winter season. Our basement gets cooler when we run our fireplace and the heat does not turn on very often. Tested the unit in our basement and it did a good job of keeping it comfortable.

    Very happy with the heater and company .

  2. Perfect for our need

    Posted by Scott on 10th Feb 2020

    We use the Envi to keep a sunroom warm in the winter. It's doing a great job keeping 60F in an otherwise 40 degree room. We can keep the plants out there and use the room more often in winter.

  3. Excellent Heater!

    Posted by Teresa Evanosky on 7th Feb 2020

    Excellent heaters for the money. Easy to install and look great. The bedrooms I am using them in do not have heat and kept the occupants toasty warm on a very cold (16°) night. I highly recommend them!

  4. I would and do recommend it.

    Posted by Maria C on 6th Feb 2020

    Since I am in Florida, I can only say that it is
    quite enough to make my bedroom comfortable so the
    rest of the house need not be heated. Sorry I can
    not help you better.

  5. Best Heater

    Posted by Loretta Mazzola on 6th Feb 2020

    I purchased my first heater 10 years ago when we moved into our house. There was electric heat in 2 of the 3 bedrooms and no heat in one of the bathrooms. We put the first one in the master bathroom. We keep it on low during the winter and off in the summer. It works great and we are able to regulate the heat. We purchased the second one for one of the extra bedrooms. Again, we leave it on low all winter and when we are going to use the bedroom we turn it up a little. We just purchased another one for our second bathroom. There is some heat in there, but it is cold when the heat is down. I love it! Keep it at a steady heat and always nice anc cozy. I always recommend these heaters to family and friends. By the way, they all look great also. We pained two of them the same color as the walls they are on, and the last one blends great with my white washed shiplap wall in the bathroom.

  6. Quiet and warm

    Posted by Roberta on 6th Feb 2020

    I love this Envi heater! It keeps my studio at a consistent temperature without a blower. Much healthier than a tower heater. We plan on purchasing more for other rooms.

  7. that was easy!

    Posted by J. Schardt on 6th Feb 2020

    Easy to install, no noise, no dust, easy to forget it's there!

  8. Great product

    Posted by Richard Soloniewicz on 6th Feb 2020

    Upgraded to the latest version, and still lives up to expectations. Wider grate design slots in top is better for flow. Added a new heater to the bathroom. (certainly makes it comfy). Electric usage continues to drop as compared to the last 2 years, and I can put one almost anywhere.

  9. Envi heater

    Posted by Nelsonvicenti on 6th Feb 2020

    Envi heater has given warmth in my masterbed room during cold winter nights. I have install this small heater in each of my bedrooms. I recommend this product.

  10. Big improvement from the very first one that I bought in 2004 or 2005!

    Posted by S. Rosadio on 5th Feb 2020

    Great customer service!

  11. Worked great in unusually cold weather for Southern AZ.

    Posted by Bill Hall on 5th Feb 2020

    I installed the ENVI unit in a ladies restroom at our church. We had a low of 19 degrees and the restroom (approximately 100 sq ft) stayed comfortably warm. Intermittent head was delivered by the central unit set at 55 degrees. This is our fourth ENVI heater and all work as advertised.

  12. Great unit for our guest room

    Posted by Rob VH on 5th Feb 2020

    I love this thing. I'm using it in a spare bedroom that is otherwise without heat. Installed quickly and easily. Once the room has warmed I'm able to leave the thermostat down around 2 and it keeps the room quite comfortable. Should have purchased one years ago.

  13. clean looks - efficient

    Posted by Albert J Elings on 5th Feb 2020

    Out of the way. Comfortable heating

  14. Exceeds Expectations

    Posted by Frank Drachowski on 5th Feb 2020

    I noticed the Envy at a friend’s house over the Holidays. I was impressed by how quiet it was. I ordered one for our family room, typically runs cooler than the rest of the house, due to the ducts running through an extended crawl space. The room is larger (230 sq ft) than this heater is recommended for, but I decided it couldn’t hurt. It looks fine mounted, certainly not obnoxious. It generates enough heat, in near silence, that our family room now maintains a temperature 1-2 degrees above the rest of the house. Extremely satisfied.

  15. Perfect for our needs!

    Posted by Linda Nair on 3rd Feb 2020

    After purchasing one for a bedroom that is always colder than the rest of the house, we were so impressed that we bought two more for two other rooms that needed them. Unlike the space heaters we had been using, with noisy blowing fans, this heat is silent and very comfortable. Slim and out of the way (no tripping hazard), cool to the touch so safe with kids and pets, and very efficient. We love them!

  16. Envi Wall Heater

    Posted by Paul on 3rd Feb 2020

    Bought the heater after some research, was not sure what to expect. Heater was easy to install, instructions with actual pattern to drill mounting holes was very helpful. Heater runs quiet and heats the room it is in efficiently. Will purchase more heaters soon.

  17. Great steady heat

    Posted by darrel on 3rd Feb 2020

    Absolutely love these heaters! They keep our sunporch steadily comfortable.

  18. HAPPY

    Posted by IZANY on 2nd Feb 2020


  19. Perfect

    Posted by John Gonda on 2nd Feb 2020

    Exactly what I wanted/needed. Return customer; I refer people all the time to your product.

    The heaters do the job and you hardly even know they are there????

  20. Solid Product and Accessible Customer Service - 5 Stars!!

    Posted by Wendi on 1st Feb 2020

    So pleased with one we purchased last year, that we bought another. Initially purchased for an area in an older house with inadequate heating. When it performed so well, we bought an additional unit for our family room with three outside walls. We turn them on and forget about them.

    The only sound they ever make is a tiny click when the thermostat shuts the units off or on - other than that, absolutely silent. Very easy to install and don’t seem to dry out the air. The bottom and sides are cool to the touch; and the units have such a nice looking, slim design, that they look good in the rooms. I’m sure we will be buying additional units.

    Here’s hoping the company eventually designs a cooling unit along the same principle. ????

Previous | Showing reviews 21-40 of 314 | Next

Product Videos

Envi Heater: The Best DIY Heater with Jason Cameron (02:54)
Jason Cameron explains why the Envi Heater is the easiest heater to set up! Take advantage of our patented energy-efficient, money-saving technology and save up to 50% on your heating bill! Buy one today and we'll send it to you with FREE SHIPPING (in the continental US only). Get the Envi Heater today at: http://www.eheat.com/categories/Wall-Mounted-Electric-Panel-Heaters/ Like us on Facebook: http://www.facebook.com/envipanelheater Follow us on Twitter: http://twitter.com/enviheater
  • Envi Heater: T...
    Jason Cameron explains why the Envi Heater is the easiest heat...

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