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Envi High-Efficiency Whole Room 120v Hardwired Electric Panel Wall Heater - 2nd Generation (HW3012T)

15.00 LBS
Due to unprecedented demand, orders will ship in 3-5 business days

Product Description


The HW3012T is a direct replacement to the HW1012T 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 HW3012T Envi Heater is a 120volt hardwired 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 are 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: HW3012T
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 49 | Next

  1. Warms up the bathroom

    Posted by Bob Goetze on 13th Nov 2020

    Available flat wall space was limited in our master bath but my wife always complained that it was chilly when showering. There was a narrow angled wall along side the shower roll-in entry. That wall did have electricity for the shower lights, fan and infra-red type lights. It also had a blank-face GFCI from a jacuzzi tub removed 14 years ago. On the down side there was an HVAC louver on the lower 12" of the wall above the molding so if I mounted the Envi panel it would be higher than recommended. But that's where it is. It works great. I'm sure its reheating some of the HVAC conditioned air but it doesn't seem to matter. I never have it higher than the third dot on the thermostatic control and it keeps the bathroom nice and toasty warm. I hard wired it down stream from the blank-face GFCI, another plus. I used a double duplex box for a little extra room for the wires and wire nuts.

  2. Purchased twice

    Posted by Columbo on 13th Nov 2020

    Purchased two had them 1 year they preform perfectly . I’ve repurchased four more to heat small 550sft four room house. They preform better than furnace system

  3. great heater and good customer support!

    Posted by Shelly on 2nd Nov 2020

    We bought this heater for my daughters bedroom to replace the unsafe baby high and very hot electric heaters that were in it before. i love that it comes in a plug in or wire in option. i wired it in so that the baby wouldn't have a cord to pull on. Unfortunately the mounting hardware was missing but when i called they answered right away and sent me the hardware in just 3 days. Of course i didn't realize the mounting hardware was missing until I had already hard wired it in. So my hubby used some washers on screws to mount it temporarily. Once we had the proper mounting hardware we locked it into place. this is my dream heater when it comes to safety!

  4. Works

    Posted by Laura M Davis on 30th Oct 2020

    So far, so good. Used it in a slightly larger space than it's advertised for and pretty happy with the results. It looks great and was super easy to install. Very east to use. All in all, very happy.

  5. Very steady, consistent heat, installation challenging for uneven walls

    Posted by Brad McCarthy on 15th Oct 2020

    Heat: the heat is really consistent and is able to maintain a temp in our bathroom that has two external walls (brick house, ~80 sq ft, Wisconsin fall temps).

    Installation: overall, the installation was really easy and straightforward. We have textured walls that are very slightly uneven and it was pretty challenging to get the clips in. Ended up needing to use washers to move the clips away from the wall.

  6. Good so far, looking for more

    Posted by Thom Tree Farmer on 13th Oct 2020

    2 years ago we bought this heater for a new addition. It has performed very well. Based on that success, we bought 13 more for a new house we are building. The ability to 'zone' each room is crucial for us. There are areas of the house that we will lower the heat at times. These rooms can be closed off. We can control the cost of heating with this method of operations.

  7. Great product

    Posted by David - Seattle, WA on 30th Sep 2020

    I'm not sure which order this review is pertaining to. I've ordered 4 of these heaters in 3 separate orders. Obviously I keep coming back for more. Highly recommended product.
    Only negative I have to say is the last one I ordered arrived DOA. But that's not a reflection of the quality of the product, just an unfortunate thing that happened.
    Samantha helped me with a return label and we're getting it taken care of. Great customer service!

  8. Efficient and effective

    Posted by Erik Zimmerman on 13th Sep 2020

    I installed my Envi heater yesterday, but I had a good experience buying one for our previous home's basement. This one we installed in our three-season porch. I'm optimistic I can get another month or two of use out of that space in both spring and fall. It seems to be working well so far!

  9. Need to wait for winter season for a trur test.

    Posted by LJW on 11th Sep 2020

    Works fine upon installation. Quiet performance. December will be the true test.

  10. Straighten out those cold spots

    Posted by ray on 10th Sep 2020

    During the time COVID-19 Shelter in place was going on I found that working in the dining room in the morning was rough. It was colder than the rest of the house. I installed your product by myself just two wall hangers and a grounded plug for the wall socket. It's a big improvement. I can walk into the room and feel comfortable enough to get to work.

  11. Very subtle and pleasant heat

    Posted by Michael on 27th Jun 2020

    For my purpose , namely heating up a small space ( bathroom) this is a perfect heater. Extremely quiet and efficient. In a few minutes the space reaches the ideal temperature. It’s subtle and barely noticeable.

  12. Satisfied

    Posted by Rick Fulp on 19th Jun 2020

    Your product is very stylish and efficient. I've purchased two of these for our rental house.

  13. Streamlined appearance

    Posted by Neil R. on 1st May 2020

    This product is functional, attractive and silent. Two criteria for my purchase. Be aware that it only produces 500 watts of heat when sizing for your needs
    Very nice product. I bought 3 of them

  14. Easy to install, cranks heat!

    Posted by John S. on 27th Apr 2020

    After a slight delay in receiving the heater set up with no problems. This is the second heater that I have purchased from them in last two months. Have both the plug in and hardwired versions. Very easy to install, comes with an integrated mounting template. Really produces a lot of heat, only takes a few minutes to set up. Highly recommended

  15. Efficient, good looking heater.

    Posted by Chris on 24th Feb 2020

    This is my second ENVI heater. Both times I have installed the hard wired unit. Easy to install, assuming there is wiring in the wall. We have installed the unit in our laundry room, which is about 60 sq ft. The unit really generates a good amount of heat.The second unit I installed has a small deflector at the top to keep heat from going up the wall. While an improvement from the non-deflector unit, a significant amount of heat does still go up the wall and it gets pretty hot to the touch. I have come up with my own deflector that I put on the top of the unit. Mine does a good job of keeping heat off the wall and sends heat into the room. I wish ENVI would develop a larger snap-on deflector than what is currently there. It would turn a good product into an outstanding one.

  16. Excellent Heater

    Posted by Amy Pike on 21st Feb 2020

    Bought this heater for my new laundry room/half bath. The room is still mid construction and has no insulation. We put the heater up early, because the temps outside have been in the low 20s. It has done a wonderful job keeping us warm. I know that once we get the insulation in and sheet-rock up, the heater will be more than sufficient.

    I will be buying more for other rooms in my home.

  17. Just what I needed!

    Posted by Louis on 6th Feb 2020

    My spouse has been complaining about the in the air for one room for years. We tried those small heaters with fans. They were way too noisy making it difficult to hear the "all Important TV."
    So when I came across the "Envi High-Efficiency Whole Room 120v Hardwired Electric Panel Wall Heater - 2nd Generation (HW3012T)" install on a recent This Old House video I was all over it.
    The install was made very easy for instructions and the provided mounting template got the job done without the need for an electrician. Yes that's a DYI for sure.
    We have had the unit running almost every evening and it works great. Very pleased. I am just sorry I did not get 2 units during the January special.

  18. Sleek-Efficient Heater

    Posted by Janelle on 29th Jan 2020

    My nightmare is over, the Envi heater is my savior. We had a laundry room that was dramatically colder than the rest of the house even though we have central heating. I now enjoy going into my laundry room to do the laundry. The unit was easy to install. I love that the unit is not hot to the touch, sleek looking and does its job very well.

    I wish I could attach a photo.

  19. Good supplemental heat

    Posted by Joe on 28th Jan 2020

    I purchased this heater for a small half-bath (about 30 sq ft) without other heat that is always a bit chilly. It is attractive and very slim on the wall - since I have such a small space, this was my #1 reason for selecting this heater over other brands. As advertised, the case never gets hot & it seems quite safe. The room air (and toilet seat!) are warmer now, though the floor is better but remains a bit chilly. In fairness, though, the room is above an unheated (but encapsulated) crawlspace and it's somewhat unreasonable to expect a passive convection heater like this to warm the floor fully.

    It was a little bit tricky to mount & one of the plastic anchors snapped when screwing in to my tough plaster wall - the manufacturer could consider switching to metal anchors to improve the installation experience in materials other than thin modern drywall.

    I just got my first electric bill since the installation and running the heater for about 20 days used around 150 kWh, adding about $30 to my bill with the heater set at about 40% on the dial. This is roughly in line with the Envi marketing specifications (in my case, about 6 cents/hour) but I am hoping to get away with lowering the dial further and still keeping the space acceptably warm.

    My 4 star choice is a bit harsh, I would give 4.5 stars if that were an option.

  20. looks and works great

    Posted by Tony DiVanna on 27th Jan 2020

    We have small upstairs bathroom that was always just a little bit cold in the winter. We installed this (which was super easy) just as a supplement so we just run it on a low setting. It looks really great and the room is comfortable now. I'm thinking of getting another one for our bonus room above the garage.

Showing reviews 1-20 of 49 | 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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