Koolatron 12V Heating Lunch Box Stove, 1.6 Qt (1.5 L) Black 6 ft (1.8m) Power Cord Heats to 300F (149C) Built-In Cord Storage Classic Construction Worker Lunchbox for Car SUV Pickup Truck

It came damaged!!! I’ve always ordered these from Amazon. This is actually the first time a package actually came damaged.

Love this lunch bucket. Warms just about any kind of food. Pretty durable as well.

How does a guy get a regular warm meal on the road without having to constantly stop at restaurants, or when a microwave is not allowed by your employer? This product has certainly fit the bill at this point. Now, he is able to be several miles from the nearest TA or terminal, and still be able to enjoy a hot meal. Likewise, it is good for reheating leftovers. Using the aluminum inserts avoids any messes. We have also found that aluminum pans that are used to bake bread work just as well. And if the food isn't liquid, you can just as easily use foil. Though, we have found that it takes usually an hour to heat up things like soup if it is cold, not 20 minutes as claimed by the manufacturer. I can see how this would come in handy on a road trip if you don't want to constantly stop to eat. Definitely worth the price.

(Executive Summary) raised the temp of about 2 lbs of water approx 100°F in about an hour. Factory fuse is too big and it didn't break when I dropped it. (Procedure) This lunchbox heater arrived and I unboxed it and then dropped it on concrete. Clasp popped off but did not break and I was able to put it back together so it survived a 1m drop test. The power cord has a standard car blade fuse holder and it was fitted with a 20 Amp (yellow) fuse which seemed like a lot (20A x 13.8V = 276 watts) for a little plastic lunchbox. I replaced the 20A fuse with a 7.5 A one and it still worked fine. I decided to figure out what its actual current needs were so I calculated its power using the calorimeter method as I don not have a constant voltage power supply that would readout the amps. What I do have is an analytical pan balance, a clock, and a thermocouple. I placed the lunchbox on a digital scale and added 1047g of water, allowed it to normalize temp and measured starting temp at 17.3 °C. I then plugged it into a 12V battery connected to a charger which kept voltage at about 13.8V for the entire experiment. Over the next 2 hours I recorded the temp of the water using a digital thermometer and read the mass change of the setup. Here is the data table Time Temp (°C) Delta Mass (g) 7:58 17.3 0.0 8:18 39.2 0.0 8:39 56.8 0.0 9:07 71.1 0.0 9:30 79.1 -4.4 9:43 81.4 -8.6 As you can see from the data that the temperature rose quickly for the first 70 minutes then slowed its rate, this is also the time it began to lose mass (due to increased evaporative losses). If you look at the first 3 data points, you can see a very linear rise in temp over time (0.9624 °C / Min). To raise the temperature of 1047 g of water at this rate requires 70.3 Watts of power. At a voltage of 13.8 this means the unit is using 5Amps (on average) during this phase. Thus a 20A fuse (4X capacity) is unnecessay and the 7.5 or 10A fuse would be a better fit to prevent fires due to internal fault. I did not take the unit apart but I suspect it is just a heating element with no thermostat (maybe a high temp fuse?). In any case, they could have just put the wattage (70) on the product description.

Being a truck driver,I have used a few of these types of boxes.Let me just say that in about an hour,your soup or sandwich will be hot.Any longer and you will have to wait for it to cool down.Other boxes I usedtook 2-3 hours just to get it very warm.The only thing I cant comment on yet is durability.Ive had various other brands burn out from one month to one year.Well just have to see how this one lasts.Mind you I use it almost every day.Also note it dosent cool,were other types heat/cool.I didnt pay attention to the dimentions,and its a little small,but were talking sandwiches or left over pizza,not whole meals.

I've been a trucker for the past 17 years and have had a lunchbox stove the whole time. They are probably the most useful 12volt cooking appliance available. It was time to buy a new one when I accidentally stepped on the 12volt plug on my old unit and decided on buying Koolatron brand over the RoadPro brand because of higher quality (I thought). Unfortunately this particular Koolatron unit did not work very well. All my old lunchbox stoves in the past heat up like a crockpot on high, this Koolatron unit heat up like a crockpot on warm setting. My first use was with frozen vegetables and after 45 minutes, they were still frozen and the water was barely warm. I didn't try out my Koolatron lunchbox until after the return period so I'm stuck with this useless unit. I ended up going to a truckstop and buying a RoadPro lunchbox and that works fine. This Koolatron lunchbox is now sitting in my garage gathering dust.

Bought this for my boyfriend who is a custom applicator or as most people would say, a fertilizer sprayer. He is in a huge terragator type tractor for up to 18 hours per day at this time of year. After 20 years of living off of lunchmeat and sub sandwiches from April-September, he is overjoyed to have this. The first day he brought leftover pizza and he said that it was like fresh-out-of-oven from the restaurant after 15 minutes. He's tried everything from hot pockets to leftover tatortot casserole, and it all turned out perfect. All of his coworkers are jealous and want one of their own. My boyfriend said that he doesn't know how he went all of these years without something like this. The only thing that they could improve on is to make a re-usable pan that fits inside. I bought disposable pans at Walmart for 3/$1, but that gets expensive after awhile. I have searched the internet for a loaf pan that fits inside, but they're all too big or tiny. If anyone has found one, please tell me!!! Overall, this is probably the best money that I've ever spent on Amazon, and trust me, I spend ALOT!!

I purchased this on October 16th, 2020. Its now July 2025. Besides the wire starting to fray at the box, this has been a very dependable warmer. I use it just about every day in the fall, through winter. Sometimes in the summer. (Chicago weather.) I leave it on for about an hour to an hour and a half. Food gets really hot! I keep it in my work truck and it gets abused quite a bit. Very impressed that it's lasted this long. The only thing I changed right away, was the spring in the plug because it failed to spring back after a few months.

It works perfect

I bought this for my husband, mostly during the winter months so he could have hot meals at work. He loves it! Heats up a full meal in roughly 20 minutes and it's as hot as it would be fresh!

no lo he probado pero se ve bien y espero que dure

Nice product

Good but still takes a while for the food to heat up.