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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 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.

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Product Reviews

Showing reviews 1-20 of 369 | Next

  1. Heat where you need it

    Posted by Chris on 10th Aug 2020

    Bought 2 of these for our cottage bedrooms in Wisconsin-perfect and keeps them warm and toastly during cold fall days. Bought one for a long hall going to our second floor in Illinois and it worked out great. Bought one for my daughter in Arizona who has asthma likes it warmer on cold days then the rest of her family and I am sure it will work out well for her. Price is great. Low energy usage is even better. No noise,no fan and no problems.


    Posted by JOHN MERA on 9th Aug 2020

    Installed in my bedroom that use to be cold, Now is warm .. By the way this is the comment of my son from Ecuador

  3. Very pleased

    Posted by Karen K on 16th Jul 2020

    Purchased one heater to keep elderly sister warm worked perfectly.

  4. nice

    Posted by Antonio Vega on 25th Jun 2020

    This is the scond unit that I purchase and I did it because I liked the first one.

  5. Excellent customer service

    Posted by RONDA BYBEE on 21st Jun 2020

    this is an update to a previous review. While the heater works very well, it did not work well for my specific needs. Management cares that their customers are happy and worked with me to get the product returned. They stand behind their product and reputation.

  6. Heat space perfectly

    Posted by Kevin on 20th Jun 2020

    I bought the Envi High-Efficiency Whole Room to heat a heat an office that I built in my basement to replace a different space heater. The heater that I was replacing would flex the heat 2-3 degrees either way from what you had it set to. The eheat keeps the room at an even temperature and does not have a loud fan. Can't say enough good about the eheater.

  7. Great product

    Posted by Thomas Lane on 19th Jun 2020

    Works Great!!

  8. Amazing alternate heat source solution

    Posted by Dawn M. on 13th Jun 2020

    I bought two as a solution for a house sale rather than paying an electrician to install wall heaters in a house without a duct heating source. New rules these days from the day that house was built. They took less than 10 minutes to install and heated immediately. I am so impressed with these heaters. I'm going to buy two more for the outer rooms I have built at my own house. So much more energy efficient than the other options out there and very affordable.

  9. Very good purchase

    Posted by Stephane Yu on 12th Jun 2020

    Very happy about this heater. Highly recommend it.

  10. Keeping Warm

    Posted by Roger Buggle on 6th Jun 2020

    So, after moving from Dewey Arizona where it gets real cold in the winter we now live in the southeast. We bought four more eheats and if weren't 90 deg. outside I'd probably turn on my new eheat!

    Love Is Keeping Warm,
    Oh Yeah!!!

  11. (Nearly) Exactly what we needed!

    Posted by Christine Caffrey Johnson on 3rd Jun 2020

    We finished our lower level last year but the heat in the bathroom was not quite enough to feel cozy when using the facilities. I found this product online and ordered it, installed it myself (following the excellent instructions), and have enjoyed the benefits since. It’s very handsome and unobtrusive.

    A few things: this is a much larger heater than you might think from the photos online that do not show you perspective. Secondly, at the very lowest setting it heats up our bathroom just fine - and I love that it can so easily be turned off. But this is a large unit that could probably heat up our three car garage in the winter - just saying. Finally, while it’s working out ok, I think it would be best to not have anything (as we have chair rail) above the unit so that heat can flow freely and not get anything except the air warm.

  12. Very efficient

    Posted by Elliott R on 27th May 2020

    Bought one of these for the bathroom at home and it worked so well I bought 2 for a small seasonal cabin we have at the lake.
    Found it very efficient and it performs better than expected.

  13. Best Value

    Posted by Annette Sullivan on 22nd May 2020

    This heater is a game changer. The low profile is amazing. The thermostat is easy to access and works well. Installation is simple and safe. The convection system keeps the warm air moving where it needs to be. The cord is long enough to provide correct placement when outlets are few. How satisfied am I? I bought four more!

  14. Just as great as the first one.

    Posted by Tommy Thompson on 21st May 2020

    This is our second unit and we would happily buy a third if the need arises. The easy installation can not be over stated. We put the first one in a half bath that had no heat vent. It fit the need perfectly. This one is going in our grandsons bedroom. The heater does not get too hot to touch. So again, it fits the need just right.

  15. 2 More

    Posted by bob f on 21st May 2020

    I like my two Envi heaters so much, that I bought two more. Love 'em!

  16. Save money on bills & support American manufacturing

    Posted by S. Ahrens on 20th May 2020

    This product is a win-win. I just bought my second unit after being very satisfied with a full winter using one. Every home should use these - particularly in moderate climates and well insulated structures. I live in a poorly insulated tenement where the "heaters" that came with the place are worthless at heating yet incredibly expensive to run. It was more economical to buy an Envi heater in this rental - in one season I made back the cost in savings. Envi heaters are perfect for any rental, ADU, AirB&B, tiny house etc. If you have a residential income property, consider using envi heaters. From an economic, SAFETY and space saving perspective, it's simply ideal. There's no reason to spend more on heating or to have risky, fire-hazard, heating units when Envi heaters demonstrate you don't have to! I know children who turn on their own Envi heaters because it's safe for them to do so.
    Here are my only hesitations regarding this product:
    -I don't know how long a unit can be expected to last, so I can't speak to the long-term investment aspect.
    -In extremely cold temperatures it doesn't heat quite as high as one might like: I supplemented with an area heater when temps were incredibly low (poorly insulated tenement) but in this moderate climate, it only approaches 0°F a few times per winter. I'm hoping with 2 Envi heaters I won't need the occasional area heater.
    -There is a hot-plastic smell when you first turn it on, which goes away after 72hrs or less.
    Overall a fantastic product!

  17. Very happy - second purchase

    Posted by Walt on 20th May 2020

    This is the second heater I bought. The first one was 220v hard wired. They both perform beyond my expectations relative to efficiency & aesthetics.

  18. Still The Best

    Posted by Jeff on 20th May 2020

    I've amassed about 5 heaters now, all for varying sized rooms, and these heaters work extremely well, emit no noise, and save on the bills. My home office just got configured to a new, smaller room and this new heater does the trick. The only sticking point is after a few years the heat can leave almost soot-like streaks on the wall above where the convicted air rises, but these wash off with vinegar/water spray, a rag, and some elbow grease. Still very much worth it.


    Posted by Ken G Amherst, Oh. on 17th May 2020

    Just installed the fourth unit in the lower level for consistent zone comfort.I have shut off whole house to this 900 sf area. My wife likes icicles 24/7. I like beaches. NEVER had any reliability issues over all the years of use. ENVI has given consideration toward the easiest installation for even the most inept. These heaters will not significantly spike your wattmeter. Even if left on 365 as mine are.

  20. Safe and efficient

    Posted by Chris on 16th May 2020

    This is the second one that I have purchased. They both work very well.

Showing reviews 1-20 of 369 | 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: Like us on Facebook: Follow us on Twitter:
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    Jason Cameron explains why the Envi Heater is the easiest heat...

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