Eco-Heater 400-Watt Electric Wall Panel Heater with built-in Thermostat-T400L - The Home Depot


Model # T400L

Internet # 203633496

400-Watt Electric Wall Panel Heater with built-in Thermostat

Eco-Heater 400-Watt Electric Wall Panel Heater with built-in Thermostat

This item has been discontinued.
The Home Depot no longer carries this specific product.

$119.97 / each


Model # T400L

Internet # 203633496

Heat your room to the perfect temperature with the T400U, runs of only 400-Watt and has a built in thermostat. Wall-mounted electric convection space heaters that use less than 1/3 of the energy typical space heaters use. An environmentally-responsible alternative to 1,500 Watt space heaters. The heater is mounted 3/4 off the wall to create a convection heat channel. The air between the wall and the panel is heated and rises, drawing cool air from the floor. Also comes with a heat reflector so none of the heat is absorbed by the wall.

  • Includes a stylish built in thermostat
  • Includes a heat reflector for the wall
  • Easy to install
  • Silent-flow natural heating technology no fan
  • A healthy way to heat the room as no dust or allergens are blown around
  • Paintable with wall paint to blend into any decor
  • UL 2021 certified by Intertek (ETL)
  • Paint it to match the color of the wall, easy Install


Assembled Depth (in.)  1.25 in  Assembled Height (in.)  23.5 in 
Assembled Width (in.)  23.5 in  Product Depth (in.)  26.25 
Product Height (in.)  26  Product Width (in.) 
Accessories Included  Yes  Amperage (amps)  3.1 
Anti-freeze setting  No  Automatic shutoff  No 
Color  White  Color Family  Whites 
Fuel Type  Electric  Heater Type  Other 
Heating Product Type  Electric Wall Heater  Heating Technology Type  Micathermic 
Indoor/Outdoor  Indoor  Installation  Surface mounted 
Product Weight (lb.)  15 lb  Remote Control  No 
Returnable  90-Day  Room Size (sq. ft.)  Less than 50 
Thermostat  Yes  Timer Included  No 
Voltage (volts)  121  Wattage (watts)  400 
Warranty / Certifications
Certifications and Listings  4-UL Certified,ETL Listed  Manufacturer Warranty  3 Years 


Rated 3.0 out of 5 by 24 reviewers.
Rated 1.0 out of 5.0 by In my experience, these units don't work well. The principle is solid, and the panels are quite attractive, however users complain that they in no way compare to space heaters that have a fan. The Eco-Heater gets quite warm to touch, however the convection doesn't function very well if a fan isn't blowing directly on the heater. I would return these if I still had the packaging. December 9, 2013
Rated 1.0 out of 5.0 by Eco-Heater Convection Heater T400U Unit was delivered without required mounting hardware, installation hardware, or instructions. In addition, product had scores and black marks on the surface, looking like it was previously used.. December 14, 2013
Rated 4.0 out of 5.0 by Good , cheap heat for spare room Mounted quick and plugged it into the outlet as per instructions. Painted it the same color as the wall and you cannot tell its even there. Best part is it did not take up any floor space. built-in thermostat seems to work well. Glad I picked this one. I will pick up another for the cabin up north. October 30, 2013
Rated 5.0 out of 5.0 by Quiet, easy to install I had hoped installing this in the master bath would keep the bathroom toasty while providing some extra heat for the bedroom, too. Unfortunately, that's just asking a bit much. The heater works great for the bathroom when the door is closed, but it really can't do it's job when it's trying to heat both areas. Nevertheless, I am impressed enough with it that I'm ordering a second one just like it for the bedroom. I believe that I'll get the results I need by placing one in each room. January 13, 2013
Rated 5.0 out of 5.0 by Works pretty well You have to make sure to put the temp sensor at the bottom as well as pull the temp sense out, otherwise, it won't read correctly. Does a good job heating up our RV bedroom. I installed it on a wall that was not insulated as per other reviewers recommendations, and think that made good sense. I'm happy enough with it that we're thinking about getting another for the living room. Another suggestion would be to wipe off the powder on both front and back before the first use. You also want to use the heat shield that it comes with. I didn't use the sticky backing.. I just pinned it (literally) to the wall. December 17, 2014
2 3 >>


Standard Shipping includes delivery by small parcel service. Processing time varies by product.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.