How accurate is it? I would be using it for a convection electric heater.
756255
I have never tried calibrating it with a thermometer close by but it seems to work well cycling my electric heaters on the ceiling. I have two of them and they they both work fine. Would buy them again.
756256
I have two of these and they are off by more than 10 degrees. I contacted Honeywell about it and they said that there's no way to calibrate it, so take them back and replace them. The replacements are just as bad as the originals, so I am switching to another brand.
756257
I use mine to control a room of baseboard electric heaters. About 4000 watts in total. I would say the temperature is + or - two degrees or less.
756258
I have noticed it being 5 degrees off from a thermostat 4 feet away, so I had to replace that one with an identical model.
756259
I have found them to be +/- 5 degrees. This is not an absolute accuracy however I think it's fair. I put seven of these in my son's all electric heated house and he says he has seen his electric bill decrease from when he had the 1985 models in all the rooms. Hope this helps. Bob
1446201
I'm not sure what the "rated" accuracy is. We bought and use this thermometer for testing meat that we roast on the large, charcoal grille we maintain on the outside deck. We roast all year round and have found this simple thermometer to be accurate for the purpose. I know that my wife has attempted to use this for stove-top cooking where temperature accuracy is a bit more important and she has found it to be fairly good although she has requested I buy her a better, more precise thermometer for some of the more delicate cooking she does from time to time. So my judgement from our experience is that if the requirement is to test for cooking temperatures of APPROXIMATELY 120, or 140, or 160 degrees, this thermometer presents excellent value. But if your need is to know that the oil in the pot is exactly 305 degrees, there will be much better and much more expensive thermometers from which you will need to chose.
1989923
Accurate? Probably not. It's manual states that its DC current accuracy is 3% +- 2 digits. But unless you get it calibrated you can't be sure of that.What kind of accuracy do you need? If you're considering this meter, it's probably good enough.
1957678
I wouldn't see why it would be... we've used our heater all winter so far, it's kept our living room at a nice temp. Can't wait to get the next electric bill, from the cold weather we've been having.
1399643
It seems to be fairly accurate but would say it is probably within a few degrees of exact temperature. If exact temps are critical for your use, I would look for a product that guarantees accuracy.
107088
Yes. And it pretty accurate. I've tried two different thermometers and the ridings was the same
1457541
I got this heater today, didn't use it yet. But just so you know, the red numbers you see in the front is not the digital display or current temp of the water, it shows at what setting you kept your thermostat. I don't know how accurate that thermostat works.
497012
Hi there. This is an in-line thermostat for 220-240 VAC. It is rated at 3600 Watts at 240 VAC. plenty for any baseboard home heater. they work very well and are "smart" energy saving as they see the temp. rising and falling and adjust to meet the needs. (ie shutting odd a degree before reaching the temp. because the radiant heat will continue to rise. The slimline design are it's good and bad feature. They look great, but are not forgiving if the box is not cut well. They don't have a large "lip" in the back to cover poorly cut holes. I've installed about a dozen of them (to replace existing) and had to Spackle two so they would cover. Hope this helps. Hi there. This is an in-line thermostat for 220-240 VAC. It is rated at 3600 Watts at 240 VAC. plenty for any baseboard home heater. they work very well and are "smart" energy saving as they see the temp. rising and falling and adjust to meet the needs. (ie shutting odd a degree before reaching the temp. because the radiant heat will continue to rise. The slimline design are it's good and bad feature. They look great, but are not forgiving if the box is not cut well. They don't have a large "lip" in the back to cover poorly cut holes. I've installed about a dozen of them... » Read More Hi there. This is an in-line thermostat for 220-240 VAC. It is rated at 3600 Watts at 240 VAC. plenty for any baseboard home heater. they work very well and are "smart" energy saving as they see the temp. rising and falling and adjust to meet the needs. (ie shutting odd a degree before reaching the temp. because the radiant heat will continue to rise. The slimline design are it's good and bad feature. They look great, but are not forgiving if the box is not cut well. They don't have a large "lip" in the back to cover poorly cut holes. I've installed about a dozen of them (to replace existing) and had to Spackle two so they would cover. Hope this helps. « Show Less
1951118
It'll easily and accurately do that. My iffice is in an unfinished suite and the HVAC is almost 20' up and it gave me the same measure that the computer system did via remote on my laptop. I use it lots when I gave complaints in the offices where they say they are either too hot or too cold. Furniture fixtures are akmist never desugned with HVAC flow in mind and the ladies also dont like wearing layers so this backs me up when theyve asked for a specific tempAnd we set the computer for that and they complain. Cant argue with a digital lazer readout! Hope this helps. I love the dang thing! Even use mine for external barbie temps when slow cooking or smokong. Blessings, enjoy. It'll easily and accurately do that. My iffice is in an unfinished suite and the HVAC is almost 20' up and it gave me the same measure that the computer system did via remote on my laptop. I use it lots when I gave complaints in the offices where they say they are either too hot or too cold. Furniture fixtures are akmist never desugned with HVAC flow in mind and the ladies also dont like wearing layers so this backs me up when theyve asked for a specific tempAnd we set the computer for that and they complain. Cant argue with a digital lazer readout! Hope this helps. I love the dang... » Read More It'll easily and accurately do that. My iffice is in an unfinished suite and the HVAC is almost 20' up and it gave me the same measure that the computer system did via remote on my laptop. I use it lots when I gave complaints in the offices where they say they are either too hot or too cold. Furniture fixtures are akmist never desugned with HVAC flow in mind and the ladies also dont like wearing layers so this backs me up when theyve asked for a specific tempAnd we set the computer for that and they complain. Cant argue with a digital lazer readout! Hope this helps. I love the dang thing! Even use mine for external barbie temps when slow cooking or smokong. Blessings, enjoy. « Show Less
1905866
I have the Millivolt version of this unit, and i have it on 110, is only used for elec. spark(like stove), and for control panel, works great, love this heater
302942
It should be pretty accurate with a shallow amount of oil. If the amount of oil is deep enough for a standard thermometer, use it to compare against the laser measurement.
1238530
Definitely ! I use one just like this in my small livingroom that has a wood floor, and on the 800 watt setting it keeps me warm and comfortable even when the temperatures drop down in the 20's. It will keep the temperature at about 66 to 67 degrees which is just fine for me :) It beats the high electricity bills I get if I were to use the walls heaters my home came with ! Just make sure you set it out in the open so it can work properly, and not right up close to you ! If I need a little extra up close heat I just use my heated electric throw/blanket. When your on a fixed income, this heater will take care of you ! Definitely ! I use one just like this in my small livingroom that has a wood floor, and on the 800 watt setting it keeps me warm and comfortable even when the temperatures drop down in the 20's. It will keep the temperature at about 66 to 67 degrees which is just fine for me :) It beats the high electricity bills I get if I were to use the walls heaters my home came with ! Just make sure you set it out in the open so it can work properly, and not right up close to you ! If I need a little extra up close heat I just use my heated electric throw/blanket. When your on a fixed income, this... » Read More Definitely ! I use one just like this in my small livingroom that has a wood floor, and on the 800 watt setting it keeps me warm and comfortable even when the temperatures drop down in the 20's. It will keep the temperature at about 66 to 67 degrees which is just fine for me :) It beats the high electricity bills I get if I were to use the walls heaters my home came with ! Just make sure you set it out in the open so it can work properly, and not right up close to you ! If I need a little extra up close heat I just use my heated electric throw/blanket. When your on a fixed income, this heater will take care of you ! « Show Less
2192692
Unable to provide an accurate estimate since I use this for only occasional spot heating .I do know that it uses little energy when used in conjunction with a whole house heating system.
291105
My marathon heater was and still is accurate. One thing I will add is once you feel the water start to heat up it will very hot quickly. Therefore, turn down the hot water as soon as the starts to heat up.
2232214
I am not sure. I used it for small heater which is very powerful. I never had a problem. But I do not have the heater on all the time. I would check with an electrican to be safe. Hope this helps. Good luck.
145653
I would be wary of the accuracy, there are "dead spots". I ordered two of these and both of them had a "dead zone" of about 6 degrees (from 76°F-82°F) where it would show it was 76° until it suddenly spiked to 82°.
32797
I am using one of these with an Intertherm electric hot water baseboard heater. I am also using one for electric forced hot air heaters. It works great for both applications.