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

15.00 LBS
Ships in 5-7 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)
  • 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.

Write your own product review

Product Reviews

Showing reviews 1-20 of 388 | Next


    Posted by Judith A S on 17th Oct 2020

    Read all instructions first and you're all set!
    Really, it was the easiest installation I've ever done. After reading other reviews I thought the smell of the new heater would be truly awful but it wasn't that bad, and it only lasted just over 24 hours. The heater functions just as stated, the heat comes up pretty quickly ( I expected it to take longer ) and it is not ultra dry heat. It feels good! A keeper for sure!

  2. Perfect room heater

    Posted by Rich on 15th Oct 2020

    Our main heat is a pellet stove in the main room. It heats the house pretty well except when the outside temperature gets below 20. The back rooms get a little cold so I decided to try these heaters. Absolutely perfect! Keep the rooms at a comfortable temperature and they don't cause my electric bill to skyrocket. Highly recommend these heaters.
    The install was extremely easy also.

  3. Warm at last

    Posted by AS on 15th Oct 2020

    Purchased our unit to heat our bedroom (after 5 years of cold, drafty winters). It was simple to install, looks attractive, is noiseless And is keeping us warm. Highly recommend for a simple fix to a 1 room problem.

  4. Does everything I expected

    Posted by Karl Stoltenberg on 11th Oct 2020

    Installed in master bedroom for cold winter nights and put it on a timer for 3 hours before bedtime, heats the room up nicely and quietly for bedtime, then timer turns it off for a great night of sleeping. Very unobtrusive in the room and with no fan, nice and quiet.

  5. Best I've found on the Market

    Posted by Anna O.-Michigan on 11th Oct 2020

    I bought a hardwired unit about 4 years ago. I love it. It is silent, the temperature remains comfortable, & it uses very little electricity. I also love the safety features: 1. Always cool to the touch & it will not function unless properly attached to the wall.

    I am now about to open a Veteran's Medical Foster Home and my home has forced air heating. The rooms farthest away from the furnace are cooler than the rest, so I will be adding these units to those rooms. PLUS... the units warm without drying the air and they keep more consistent comfort.

    I will be buying at least 2 more.

  6. Does the job

    Posted by Mindy on 9th Oct 2020

    I ordered this for a 10x13 room in the basement that does not have a heat vent from the furnace. The product arrived in a timely manner and was easy to install. I have only needed to use the heater on the lowest string and the room has been plenty warm. I love it and am very pleased with the purchase.

  7. Thumb's up

    Posted by Lyn brett on 8th Oct 2020

    Have purchased 3 and definitely plan on purchasing one more. One in each room and with nights dropping into high 30's have kept the rooms comfortable and warm. Would recommend for everyone especially ones with pets who like to touch everything with their noses.

  8. So far so good

    Posted by Unknown on 8th Oct 2020

    Purchased 2 units to heat small park model RV, replacing 2 240v floor registers. So far they are maintaining reasonable temp and electric use us much less than before, which is why I bought them initially.

  9. great

    Posted by Dana Kemp on 4th Oct 2020

    Very good heater, useing it in my work shop. keeping me worm so far.

  10. supplemental heat

    Posted by steven l beach on 30th Sep 2020

    works as supplemental heat source not as primary heat. quiet, easy to install and looks somewhat attractive.

  11. My "she shed" is nice and toasty

    Posted by Sherilou Shelton-Butler on 30th Sep 2020

    I LOVE this heater! Sleek, and warm. Excellent product.

  12. Cabin heat

    Posted by Katherine A. Walter on 29th Sep 2020

    Utilizing the heating units(2) to keep the temperature controlled to prevent water pipes from freezing. Hope it will work as planned.

  13. A great heater during the winter months!

    Posted by Steven G. on 26th Sep 2020

    I bought one several years ago and it's still working great so this one can help in another section of my home.


    Posted by Patricia S. on 23rd Sep 2020


  15. Great Heater

    Posted by Ed in MSP on 10th Sep 2020

    My brother uses these heaters in his cabins and recommended them to me for our basement remodel. Installation was super easy, they look good, and work even better They are silent and keep the room comfortable.

  16. Great heater

    Posted by Timothy J Hallahan on 10th Sep 2020

    We have purchased eight eheaters over the years for our home and a relatives. They work great and if and when the time comes and we have to replace them we will without any hesitation.

  17. e-heat

    Posted by Jan on 10th Sep 2020

    I bought this in anticipation of winter coming. My bathroom is so cold I don't want to get up to use it. However, it's summer so I couldn't really test it out. So I gave it to a friend who has a bathroom in the basement that is always chilly. He loves it. So much that he kept it and ordered me another one. I just got mine yesterday and I'm happy to say the weather has allowed me to turn it on. Wish I had gotten one years ago.

  18. Better than expected

    Posted by John Ogden on 27th Aug 2020

    I am completely satisfied with the look of this heater. It is even nicer looking than I had anticipated. The installation was relatively easy, although I left it so I could easily remove the heater in the future if I chose to do so. I also have to say, since I have installed it in summer, I have not been able to see if it preforms as intended and advertised. However, I have no doubt that it will

  19. 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

Showing reviews 1-20 of 388 | Next

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