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

15.00 LBS
Ships within 3-5 business days

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

Showing reviews 1-20 of 134 | Next

  1. So Quiet!

    Posted by Jacqueline Powers on 11th Nov 2019

    I had two reasons for ordering this heating unit: the first reason is that it is completely silent. I would turn off my wall heater with the fan when I couldn't stand the noise from the fan any longer, even when the room was not warm enough.
    The second reason I ordered this heater was that I knew that this type of radiant heater would do a better job of heating the room and the room retaining the warmth. And that is what has happened. Despite the description of this model stating that it will warm and maintain heat for a 150 s.f. space it is maintaining an even level of warmth in a much larger space. I'm very pleased with this purchase.

  2. Great space saving unit

    Posted by Chiris on 11th Nov 2019

    I bought three of these units to help equal out the heat in an odd layout 2story home. The home was always too hot upstairs. These units resolved said issue. I will likely purchase more units to heat entire home. Quiet and safe I enjoy the flexibility placing heat evenly through my home. Thks.

  3. Great unit.

    Posted by Paul on 10th Nov 2019

    Great unit, easy to install and it works great. Use it to heat up a back bedroom. 100% satisfied.

  4. Amazing

    Posted by Jennifer on 10th Nov 2019

    I now have a 4 season porch because of this heater. It works immediately and amazing plus you do not hear a thing.

  5. The Envi works amazingly well.

    Posted by Tapio Jaakola on 10th Nov 2019

    Nice product, showed up in good time, packaged well, construction on the unit seems very good, nice design overall. Installation of the unit was a breeze, and the operation of the unit is incredibly quiet. We use the heater only now and then in one of our cooler corner rooms to supplement the main furnace in the winter months, works well, nice product.

  6. Awesome room heater

    Posted by Greg on 9th Nov 2019

    The perfect heater. So pleased with the way it preforms. Waiting on my first bill cycle to see the savings. Took out the baseboard heaters. And replaced with ENVI. We live in the smoky mountains and its cold up here.
    Thank you ENVI.

  7. Envi heaters work well

    Posted by Robin Slagle on 9th Nov 2019

    We haven't gotten our electric bill yet to see the difference, but we had a few much cooler nights and actually turned the heaters down because it was too warm.

  8. Unbelievable heater

    Posted by wmoucha@aol.com on 9th Nov 2019

    The heater is truly amazing. It was so simple to mount to the wall because of the outstanding instructions and mounting template. Had the heater out of the box and mounted to the wall in under 30 minutes.
    The heater itself is so easy to operate, and the amount of heat that the unit generates is just outstanding.
    I would and have recommended this heater to everyone.

  9. Safe and Efficient

    Posted by Adam on 9th Nov 2019

    Great product. Easy to install. The unit did have some smell when first turned on, though this resolved quickly.

  10. Just what I was looking for!

    Posted by Jacob V on 7th Nov 2019

    I didn't find too many video reviews of this product but took a chance on it. I'm glad I did. I feel confident to put this in our child's room to supplement the heat from out central air this winter. I plan on purchasing another for a different room. I just wish I would have bought another to get additional & $$ off the total.

    Take a shot and buy this.

  11. Best passive heat system out there

    Posted by Denis on 7th Nov 2019

    Building a tinyhouse and I needed a way to keep a constant heat 24/7 and supplement with my wood stove to make things perfect. This was the answer! I feel confident keeping them on while I’m not there, they don’t take much power and will transfer nicely to off-grid.

  12. Great Wall units!

    Posted by PJ on 7th Nov 2019

    Really easy to install. Added three units in my finished basement. Everyone seems impressed with how they look. Slim and quiet. They really do make a big difference. This is the main heat for the basement and they are really impressed how comfortable it is in this area. I've used these units for two weeks and it looks like I made a great choice too!

  13. Best heating solution

    Posted by Charles on 7th Nov 2019

    I have a bathroom in a 54 year old house that has no heat, we had been using portable heaters in this bathroom for years, but they had to sit on the counter next to the sink. When the latest heater died, I knew I needed a better solution.
    When I found this heater and installed it, this bathroom is now as warm ad the house. No loud noise, just warmth. I love it!!!

  14. staying warm

    Posted by RickC on 7th Nov 2019

    I am please with the product so far. I have only them (i bought 2) for about 3 wks so far. The function as advertised, they are thin, quite and keep the 12x12 & 10x10 rooms very comfortable. Used with the plug-in thermostat w/ scheduler, it has been set it & forget it.

  15. I had high expectations. It exceeded my expectations.

    Posted by Brian on 7th Nov 2019

    Great product- easy to install. Completely silent and safe (We have small grandchildren)

    I bought and installed two. I will buy another

  16. Great product, love it

    Posted by Unknown on 31st Oct 2019

    Packaged very well. Came quicker than expected for being back ordered. Very easy install. Works great. Have it in a roughly 10x12 room and it heats it very well. Haven't had to put the thermostat above half way.

  17. Great product!

    Posted by Luis on 31st Oct 2019

    Working amazing! As advertised.

  18. Great heater!!!

    Posted by Terri on 31st Oct 2019

    Bought mine for the tack room in my wooden barn. Was worried about putting any heater in there in case my horses or barn cats knocked it over. But not with this heater. Keeps the room warm and I’m looking forward to the heat in my beautiful Upstate NY winter!!!

  19. Best heater we ever purchased!

    Posted by Scott Helverson on 31st Oct 2019

    Installation was so easy, Template came with product.
    We installed our heater in laundry room/bathrooom.
    Attractive low profile and completely noise free.
    Best heater we ever purchased.

  20. Great product / good customer support

    Posted by DanD on 31st Oct 2019

    The first unit that I received was DOA and I contacted eHeat customer service and after a few days I was instructed to ship the unit back and in the meantime they shipped a new unit to me. The second unit worked perfect. Not sure about how economical it is until I'll get my first power bill. But the heater works great and keeps my son's room warm. It was easy to find install using the instructions from the box. So great product and good customer support.

Showing reviews 1-20 of 134 | 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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