warmth: Which is accurate?
1087280
Here are some facts I found, as we had the same question. Fill power The higher the fill power, the better the quality of down. Fill power is the space, in cubic inches, that 1 ounce of down fills. Down with high fill power is made of larger, stronger clusters from mature geese. These clusters fill more space with less weight, providing loftier down that's more breathable and durable. Fill power of 500 is good. Between 500 to 600+ is considered excellent. Fill weight This measures the actual mass of down in ounces. The heavier the weight, the warmer the comforter. But always keep in mind fill power. For example, a lightweight comforter with high fill power can be warmer than a heavy comforter with low fill power. I called the seller and found out that all 3 comforters have a different weight in ounces...even though they are not stated on the item description. He said he has 3 levels, ranging from 24oz (Queen) through 36oz.
1702628
The cool setting is not cool. It is warm. Pretty comfortable. The high setting is pretty hot.
1031214
I used to check tap temp. Accurate. Fluid surface temps do vary though. Very accurate on everything else. Good value.
2223556
With regards to the question of measuring surface temperature of a pool or lake, and ice or boiling water, I have attempted some of those tasks with some success. Please note that the "emissivity" affects the accuracy of the reading. When trying to measure the temperature of boiling water, in a pot or saucepan, I got readings in the 95 - 100 degress C range. The steam that rises from the water affects the accuracy of the reading also, so a few attempts may be required. I have measured the temperature of a number of frozen objects in the home freezer, and I got reasonable values; values were about -15 to -20 degrees C, which is about what one expects. The depth of the liquid appears the affect the accuracy of the reading. The deeper the liquid, then the reading is more accurate. Measurement of oil temperature in an large open fat fryer gave me readings of about 170 - 180 degrees C, which compares well with other instrument results. The the instrument manual indicates the importance of the emissivity values of the object of which the temperature is to be measure, I have found that generally the instrument gave reasonable results "out of the box" without any emissivity value adjustments for a variety of surfaces. It is an excellent product for the price. Kind Regards, Dan D. 30-May-2015
386215
"Warm enough" depends on the person. That said, I wear mine from +15F to +50F and I am perfectly warm. Below freezing they keep me warm only if I am actively cycling. If I stopped for more than a quick snack (15 minutes) I would be a bit cold.
223831
Each person is different and their tolerance to climate is going to be different. I tend to overheat easily and found that 45-65 with this product is great. It keeps me cool in the warmer weather and warm in the colder weather. However 65 might be the extreme of this weight. I would suggest a light weight merino wool base layer if you are going to be in 60+ degree weather. You can always strip down a layer but it is hard to strip off your base layer :)
420789
It is consistent +/- 0.3 degrees.... There are variables of the user technique and subject. For example, I've had patients take off a hat and it reads at least a degree or two higher than it will only 30 seconds later. Also, distance from skin is a factor. You must consider too that body temperature, while remaining within a narrow homeostatic range, does vary itself from moment to moment. What I will say is that this meter INVARIABLY detects elevated temperatures and fever.
2177978
I think that would depend on your body heat...I'm cold all the time and its ok for me but my husband is much warmer all the time and he sometimes tosses his covers off. It is no different than any other cover we've had in that respect. The COVER is cotton but the "inside" is synthetic, so it will tend to be warmer.
1762143
The first stop on the temperature dial is "Warm", the next is "200 degrees". Hope this helps.
1526596
I put one of these in our always cool, 14x20' lower Family Room. While it has made a somewhat noticeable difference in temp, I'll probably add at least one more. The information supplied by the manufacturer seems to be accurate regarding the size of room and number of units needed. Also, these things provide what I would call " ambient heat". There is no sound, movement, blowing air, etc. just a warmth that emanates from the unit. It kind of fools you into wondering if it really works, but it does!
1495086
Absolutely. There is a target temp that is set by the user and an actual temp. Very rarely does it fluctuate within .2 deg either way. Yes two tenths of a degree. Very accurate device.
2279047
The mat should feel warmer than body temperature. The mat needs to be on a cold surface to work, cannot be placed on other thsn a cold hard surface. Lift the mat and feel under it on the rubber bottom surface it should be very warm to touch. I have 3 mats on all winter and work well. The temperature needs to be 38 degrees or colder to work best.
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
636703
I have never felt any heat so I'm going to assume cold. It's ultrasonic so I would imagine there's little to no heat involved in that.
1458943
100-600 degrees F is correct for this one. By the way, I notice the price dropped. I paid $9.80 each.
1492955
I wish I could tell you. Mine are not super tight & it's been super cold where I am & I have found them to be good. Granted--on one case I did add hand warmers but it was 4-degrees & windy.
1065769
I did not use this warmer long enough to be able to provide an accurate answer.