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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)
  • 475watts - 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 475watts). Costs as little as 4 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, 3.95 Amps
Power Consumption: 475 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.

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Product Reviews

Previous | Showing reviews 21-40 of 292 | Next

  1. Stunk at first, then nothing but good

    Posted by Karl on 1st Feb 2020

    Received and installed the heater. Easy installation with the template provided. Plugged the unit in and turned it on and the room quickly filled with a strong plasticky odor. Fortunately, the heater is installed in a bathroom, so closed the door and turned on the exhaust fan. Opened a ticket with Envi support and they responded the next morning that some new owners report a smell that goes away after the recommended 72-hour break-in period. That was the case! The smell went away the next day and the Envi has been working great since. Keeps the bathroom at a constant temperature, set between 1-2 and the thermostat dial.

  2. Easy to Live WIth

    Posted by katiepat on 1st Feb 2020

    This is my third Envi heater, for a new studio space. I have one in my chilly kitchen and one in a pantry/utility room to keep the pipes from freezing. Electricity is expensive in NH so I give it 4 stars, but I have been very happy with them.

  3. Reliable Heat

    Posted by Joe Moore on 1st Feb 2020

    These Envi heaters have performed as promised in the advertisement, I am very satisfied.

  4. Keeping me warm!

    Posted by Arlene on 30th Jan 2020

    I love my heaters. They are great for supplemental heat in my old house. Thanks to the template, mounting it was so easy! Great product.

  5. love it

    Posted by R. Dale on 29th Jan 2020

    HH3012T suits our purpose perfectly. About to order another one

  6. Outstanding heater

    Posted by Scott P on 27th Jan 2020

    This heater is fantastic! Prior to installing it, temperatures in my kitchen (which does not have a radiator) could get down to the mid 40s during a typical MN winter. I used to boil a pot of water or use a fan heater just to get some warmth in there; neither was particularly effective. Since installing the Envi heater, my kitchen stays toasty warm, and I have it set at only 1/4 power! I am so happy that I bought this heater.

  7. Excellent heater

    Posted by C. Sprouse on 26th Jan 2020

    Does the job. Quiet and energy efficient. Couldn't be happier. Ordering another for my daughter

  8. working as expected

    Posted by GLEN H HANSON on 17th Jan 2020

    placed it in a small extra room on the west side of the house, upstairs that has a door to the outside that goes out to a porch, this heater set on a low setting has completely transformed this room into a nice warm and cozy room, thank you

  9. Love this heater!

    Posted by Mary Ann A Camillo on 16th Jan 2020

    Love this heater! It was easy to install. I chose it for my 3 seasons front porch to keep it warm enough in the winter for my cats and plants. I puts out just enough heat to make it comfortable. The unit doesn't get hot to the touch and it's very quiet and it looks great. Love this heater!

  10. Perfect heater/USA made!

    Posted by kathleen larsen on 15th Jan 2020

    We always disliked heating the entire home , while we were just in one room. These slim wall mount heaters are a perfect remedy. We bought two. One for each of the bedrooms. They kept our holiday guest warm throughout the night.

  11. Great heat addition

    Posted by Brouigu1 on 15th Jan 2020

    This was recommended to me by a friend and it works as advertised! Really easy to install and its augments the home heating system in a front bedroom that stays a little on the cool side. I like that there is no fan but the heat just rises right out of the top.

  12. Amazing

    Posted by Alex Knight on 13th Jan 2020

    Quiet, warms the space intended for, slim and compact.

  13. Great solution!

    Posted by Lisa on 13th Jan 2020

    Love the low profile, wall-mount unit. It is keeping the temp in my 18x18 office much more comfortable. The "new heater" smell dissipated in about an hour.

  14. Just what we needed

    Posted by Terry on 12th Jan 2020

    We have a small bathroom that doesn't seem to receive heat from our furnace. This Envi heater fills the bill perfectly. Slimline, attractive, and best of all, very effective. My wife really appreciates it as she is a bit cold-natured. It keeps this little room toasty, even at lower settings.

  15. Exceeds Expectations

    Posted by Walter D. on 12th Jan 2020

    This heater is performing very well in a room larger than it was designed for and is operating at a low thermostat setting. And it is made in the good old U.S.A.!

  16. Excellent heater

    Posted by Tom on 12th Jan 2020

    Great tools to make it easy to install. Good looking unit. Heats a medium sized bedroom very well on even the lowest setting. Second one we've bought. Would definitely recommend it.

  17. Great item

    Posted by vince on 12th Jan 2020

    Easy to install and runs safe and trouble free. No need to hire an installer. This item is not meant to heat a house but is a great item for keeping the frost off unoccupied buildings and rooms

  18. Works much better than advertised.

    Posted by Nick on 12th Jan 2020

    This heater puts out an unbelievable amount of heat. It is worth every penny.
    When installing take your time to be sure the mounting clips are in the proper location on the wall. Keep in mind the way the heater will have to move to be mounted on the clips. Be sure to follow the instructions in regard to the “new heater smell”.

  19. Shalom, Personal Preference

    Posted by James on 12th Jan 2020

    Thank You.

  20. Great Product

    Posted by C. Nelson on 12th Jan 2020

    Just purchased my second unit for a small bedroom. First unit is in a large bathroom. Completely satisfied with this product.

Previous | Showing reviews 21-40 of 292 | 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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