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Envi 120v Plug-in Electric Panel Wall Heater - 2nd Generation

15.00 LBS
2-3 Business Day Lead Time

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)
  • 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)
  • 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 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, HW3022T)

Please review our Return Policy before placing an order.


Model Number: HH3012T
Voltage Rating: 120V, 4.17 Amps
Power Consumption: 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 710 | Next

  1. Great heater for small bathroom

    Posted by MLS on 23rd Jun 2021

    This heater is exactly what we needed for a small bathroom in a 2nd home. it's very nice looking and easy to install. It's much thinner and lighter than I expected. I purchased a plug-in programmable thermostat so I could set the specific temperature for the room. The heater heats this space (~100 sq ft) very well. I'll likely add more in other rooms.

  2. 100 % satisfied

    Posted by Wanda L Barnett on 13th Jun 2021

    This heater is everything I'd hoped it would be.And made in the USA is a big bonus.Excellent customer service answered all my questions prior to purchasing. Highly recommend.

  3. Warmth

    Posted by SH on 11th Jun 2021

    I love my new heater. It’s sleek, stylish, safe and easy to operate.

  4. Awesome heaters!

    Posted by Don H. on 9th Jun 2021

    My gf called me about a flood one morning and said that everyone in her neighborhood was evacuated at 10 pm the night before, No power, no water, no heat.
    Her landlord got the power back on and a new water heater but did nothing about the heat. She just wanted to use some space heaters but I found these envi heaters and bought her 2.
    I received them fairly quickly and installed them. She LOVES these heaters. I will be purchasing 2 of these for my own home.

  5. Great product and great customer service

    Posted by Roger Madonna on 2nd Jun 2021

    I had this heater for several years in a 10 x 10 shed where temps go to mid 20's. The shed is insulated. This heater is out of the way, quiet and kept shed at 70 degrees all night. When the switch on heater broke I ordered a new one since it worked so well. I mentioned this to customer service not expecting anything since it was a few years old, but they said send it back. They sent me a refurbished unit to my surprise. Now I have two which is great. A great heater and perfect customer service. You can't get better than that.

  6. A Heat "Topper" for the Primary Heat Source

    Posted by Danny Cantrell on 27th May 2021

    I purchased 2 of the Envi units to help maintain the temperature established by my heat pump for two large common areas of the house. I haven't been to evaluated the units in very cold weather yet, but I believe that with two units running, the temperature increased by a degree, which prevented the heat pump from kicking on. I can report that the temperature coming from the units has not harmed the vinyl wallpaper or the photos located on the walls 2-3 feet above the Envis. The units were very easy to install and very well constructed. I'm proud to have been able to purchase a product designed and built in the USA!

  7. Excellent Room Heater

    Posted by Tom Carter on 23rd May 2021

    Very easy to install and use. Close the room for about 15 minutes and the room is warm. It's a quiet unit without that crazy fan noise. However, a warning to those that have electrical surges, purchase a good surge protector! If you don't, your unit could suffer some severe damage during a surge. The customer service is excellent and repairs and replacements are conducted very quickly.

  8. Better than I could ever have imagined

    Posted by Cinda Gardner on 16th May 2021

    For a year I have been cold in my bedroom and thought that was just the way it was always going to be. After installing a wall unit I can heat my room when needed and be more comfortable and once again work on hand crafted items for my family! Thank you for a wonderful heater!

  9. Exceeded my expectation

    Posted by Ry Lop on 13th May 2021

    Very easy to install. Unit is super quiet. Heat up a small to medium size room. You just need to let it on for several hours to a whole day so the burnt smell fades away upon turning it on for the first time. Other than that, it’s perfect and exceeded my expectation. I definitely recommend it.

  10. Best Wall Heater Around

    Posted by Mitchell on 12th May 2021

    I have purchased five of these heaters and have placed them in the bedrooms and family room to provide 'extra' heat and they work beautifully! I have tried other wall mounts but these are the best.
    Especially like the built in thermostat.

  11. Great space heater

    Posted by JOSEPH PANZICA on 11th May 2021

    Well worth the money. through the years I have bought four of five of these heaters and they all do a great job

  12. Heated Storage

    Posted by Bob on 5th May 2021

    I use this unit to heat a storage room in our garage in which I store musical equipment. It keeps the temp and humidity perfect at the lowest setting. Well worth the cost of the unit to protect thousands of dollars worth of gear.

  13. nice and warm room

    Posted by greg arn on 1st May 2021

    the heater heats up every room i have installed it in to my satisfaction

  14. Great heater!

    Posted by Jeana L on 30th Apr 2021

    I was looking for solution for my lower level office in our bi-level home to add a bit of extra comfort while I work from home during the pandemic. It's chilly being 4 feet in the ground! Definitely does the job and it was easy to install. It takes time to notice a difference due to the radiant heat type compared to an electric heater that starts blowing heat at you but once it's up to temp, it's lovely! My brother recommended me buy one after installing a couple for my parents. They love them too.

  15. Fantastic product for the money

    Posted by Aaron H. on 30th Apr 2021

    I chose to purchase several of these for a house without heat in Central Coast CA. The larger rooms need 2 units but they are super quiet and distribute the heat well. It's way better than having hot air blowing on you. It doesn't get super cold here (maybe the high 30's at night) but they are more than sufficient. I bought 7 of these which was a fraction of the cost of installing any other option that would've also been much less attractive.

  16. Satisfied customer

    Posted by Jennifer C. on 28th Apr 2021

    Great product. I was looking for a heater to warm the coolest room in my house— above the garage with 3 external walls. 225 sq ft. Installation was simple. This room quickly became the warmest room in the house while on the lowest setting in early April in New England.

  17. solid safe heat

    Posted by Cynthia C. on 27th Apr 2021

    This is in my daughter's room, and in reach of my toddler son. The installation took a little bit of wiggling to get the heater hung so that the safety switch was triggered, even with the guide. Otherwise, we like it.

  18. Happy with all three!

    Posted by Tom on 26th Apr 2021

    Have purchased three of these heaters, and we are happy with the way they warm the back 2 bedrooms as well as the porch. The one on the porch doesn't heat it real well in the dead of winter, but once the weather has warmed up to 30's and 40's at night, it does a great job.

  19. Envi plug in Wall heater

    Posted by Fig on 25th Apr 2021

    I haven't had this very long ( maybe 2mos) I am very Happy
    with this heater no big differences in my electric bill and it
    Heats the room nicely! Thanks for the fine product.

  20. Perfect heater.

    Posted by Denise A. on 23rd Apr 2021

    I purchased two heaters several years ago. They are so wonderful I purchased another one just recently. They are amazing and don’t give off a smell like other types. I can’t say enough good things about this product. I love them!

Showing reviews 1-20 of 710 | 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:
  • Envi Heater: T...
    Jason Cameron explains why the Envi Heater is the easiest heat...

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