Should I be concerned (possibly deem it to be defective) if it doesn't warm a 14'x14' living area when it's 40F outside? Full bblast for 12 hours.
1377649
I do not think the heater is defective, just not up to the task. My experience is similar to yours - the heater is not adequate beyond a very small space. I might use the word"deceptive" rather than "defective", because the description makes you think it should work fine in 14X14, though it does not.
1377650
So much of the ability to keep an area warm depends on the height, insulation, air leaks, and surface area exposed to external temperatures that you can't predict heating performance by square footage alone. Check the temperature of the air next to the heater. If it's cold, the heater is at fault, if it's hot you've got other problems.
1377651
Not knowing your particular set-up, (insulation, windows, etc..), I'd say yes......mine get HOT and do a great job of keeping two bedrooms very comfy, if it is heating up and you haven't done so already, place it in the center of an exterior wall and let convection do it's thing...good luck.
1377652
Before you get concerned you need to be sure you're using the heater correctly. You said "living area." Is that a bedroom or a living room? You can't put one of these in an "area" that has open access to other areas of the house. If the hot air can flow to other areas of the house you're not just heating a 14 x 14 area. You're heating all those areas combined. These are called "space" heaters for a reason. They are not "whole house" heaters. They work best in enclosed areas like bedrooms. If you're in a 14 x 14 bedroom, with the door and windows closed, and you turn the dial to the highest wattage setting and the thermostat dial to max, within 2 or 4 hours, depending on the temps you started at, you should be having to turn down the dials unless you like it really warm. With higher ceilings or less insulation the time-frame is going to be different. In that case it may take 4 to 6 hours to warm up a cold room. But if you're trying to use it in a 14 x 14 living room it's not going to work the same way because there is going to be air flow to the kitchen, the dining area and a hallway probably at a minimum. If you have bedroom doors open you can add that square footage as well. If you have raised ceilings that's even more area you're heating. I don't know of any 1500 watt heater that can warm up an area that large with 40 degree outside temps no matter how long you leave it running. As a test to be sure if the unit is working properly, after you turn it to max wattage and max on the thermostat, after about 15 to 30 minutes you will be able to feel heat at least 12 to 18 inches from the heater and the fins will be hot to the touch. From there it's simply at matter of making sure you have the heater in a proper sized room.
307928
Probably too small for a heater. Would believe that ambient temp will suffice for normal room temps.
2039972
Mine seemed to do the same for a day, but it eventually kicked in and works like a champ now. If you tipped it sideways or upside down during installation, you can upset the cooling agent which will cause it to not function properly. Hope this helps and yours ends up working. Mine does over 1000 square feet with ease and that's on eco mode, too.
719331
It recommends the surface be 40 degrees or warmer when installing. If it's not, try warming it up with a hair dryer or heat gun.
1341262
I have the 12000 btu unit in a 700 sq ft cabin and it keeps up until the outside temp gets below 15 degrees and it still puts out a fair amount of heat down to 5. I would think it shouldn't have any trouble in the space you are putting it in but it might be wise to keep a back-up just in case.
181968
I bought 4 in 2012 we only have 3 months mild cold weather,some are used 12 hours a day some 2 hours a day,non have broken so fartheres a reset button underneath heater,if you don't move it around a lot it should work a long time,and dust free so it does not over heat
1594353
I have put mine in low for 7 hours and then it switches to warm for 3. No issues.
2171123
Good Luck, the 1st cooler we bought from Haier it didn't heat up. So they shipped us a 2nd one and that one didn't get cold. The 3rd one was cracked. After that we just went elsewhere. I would check to see if the thermostat is up? There might be a switch to activate the coldness
1534840
have mine running with a timer 20hr on, 4 off.lights too. the water is about the same as my room temp, it is 80 degrees in my room and the temp probe in the water says 81 degrees been running 12 hours now. they recommened 18 on 6 off. going to change my timer to that. had to make a new squirter pvc pipe 1 inch longer so it sprayed on the rockwool not below it? clones are very healthy. going to put AC in the room soon summer coming.
1520030
I don't know. I keep my house at 62 degrees and let this heater run around 78, and it runs for an hour or more. It only shuts down for a while after the room is very warm. Then when the room temp drops the heater turns on again. Maybe try turning up the heater to 80 or more. I would try to make sure the heater can run for over 30 minutes before it shuts down due to the room temperature being warm enough.
1914256
Mine seems to keep warm forever. After the whole 24 hours it didn't shut off. Maybe this is defective?? (though I am happy it does not shut off.)
1438062
How long have you had it? If you are still inside the return window, that is what I suggest. I had two heating elements go out within about 6 hours of work. Returned it and got a Hakko. No regrets.
668717
Hmmmmm I never tried mine until I installed it but that don't sound good. You made sure you had somthing in it to heat up because if there is nothing inside you won't feel any heat.
1122106
I never had a problem with it runnind down the battery, but i didn't use it very long. I live in Alaska and it did not put out enough heat to be of any help, so i took it out and it is setting in my closet.
790475
If you leave this heater in a garage when it gets to 12 degrees F outside, it will be destroyed. Ask me how I know this. I am getting ready to order a new one. You absolutely have to protect it from freezing.
1009799
No. My unit works well. We typically use it for 3 to 5 hours at a time to heat up our basement TV area.
214448
When I kept this in my bedroom, I left it running all night. It does have exposed heating elements, although inside the device, so probably not a good idea to leave it unsupervised... The cord have never gotten warm. I will add that I just recently experienced the return process under warranty (they are all under warranty for 5 years) and couldn't be more impressed with Vornado's level of customer service. I called, gave my serial number and email address; they promptly emailed me a return shipping label. I advise keeping the box...I sent mine back in it. About a month later, what I believe is the repaired heater showed up on my doorstep! No questions asked! I highly recommend Vornado and this heater. When I kept this in my bedroom, I left it running all night. It does have exposed heating elements, although inside the device, so probably not a good idea to leave it unsupervised... The cord have never gotten warm. I will add that I just recently experienced the return process under warranty (they are all under warranty for 5 years) and couldn't be more impressed with Vornado's level of customer service. I called, gave my serial number and email address; they promptly emailed me a return shipping label. I advise keeping the box...I sent mine back in it. About a month later, what I believe... » Read More When I kept this in my bedroom, I left it running all night. It does have exposed heating elements, although inside the device, so probably not a good idea to leave it unsupervised... The cord have never gotten warm. I will add that I just recently experienced the return process under warranty (they are all under warranty for 5 years) and couldn't be more impressed with Vornado's level of customer service. I called, gave my serial number and email address; they promptly emailed me a return shipping label. I advise keeping the box...I sent mine back in it. About a month later, what I believe is the repaired heater showed up on my doorstep! No questions asked! I highly recommend Vornado and this heater. « Show Less