I purchased 2 of these heaters I must say I was kinda worried I was wasting my money but I wish I would have know of these heaters many years ago ! They work really well, I installed one in my enclosed cargo storage trailer and the other in my Rv in the under belly compartment, It was cold last night down in the single digits my furnace in my Rv never ran, I didn’t freeze up and the floors were warm this morning !! Very impressive, also it was on the lowers setting and burned very little fuel. I would highly recommend these for there value, size, durability, and the remote control is very easy to understand and control. I done hours of research on so many different options and brands of these heaters and I’m so glad I went with the LF Bros brand !

Excellent heater, used to heat a 20x24 insulated garage after 2.5 hrs increases temp to mid to upper 40s starting at 27F. In 5 hrs had it up to 60. Will.be buying another for my off grid cabin

Four star review because I believe the company expects the air intake to use indoor air of what ever your heating and the heater would then heat that air. This heater doesn’t have a dedicated air intake that you’d run outside of what ever you are heating. But this is an easy work around.

The heater hose that’s included with the heater is for the heated air. It comes with a deflector or adjustable vent so you can point which way you want the heated air to go. I used that heater hose on the back where the fresh air intake is. The grill will pop off the back on the fresh air intake and it will allow you to hook up the 3in duct hose to it. Then run that outside with your exhaust and your all set. I’m sure on some structures or vans, motor homes, campers etc, it would be fine just using the I door air for intake. I’m using this in a small cabin and I didn’t want to take any chances. So I ran the intake outside for fresh air.

My next issue with this heater was the muffler and exhaust. They want you to hook the muffler straight to the unit then the exhaust pipe after. This isn’t ideal nor is it like every other diesel heater that I looked at. However the exhaust pipe will not fit over the flange coming out of the heater. So you have to install the muffler first then the pipe after. That wasn’t going to work for my install so I purchased a diesel heater exhaust elbow and that fixed the issue. I was able to run the exhaust like so, elbow, pipe then muffler.

The fuel pump isn’t loud at all as you see people complain about sometimes in diesel heater reviews. You can’t hear the pump once the heater is running. Has adjustable power and temp control. Also comes with a wireless remote. If you get to hot, hit the off button on the remote and the heater will go into shutdown mode. Too cold? Hit the on button and it fires right up.

After the exhaust and air intake issues were worked out the heater works awesome. It’s easy to operate and it kicks out the hot air! I feel like this heater is way better quality than some of the other ones out there. The company is super responsive to any questions you have as well. I wouldn’t hesitate to buy another if I needed or wanted one.

So, the first unit I got arrived Dead on arrival. Not sure what the issue was, but after wiring it up and trying to turn it on...nothing came on. Probably was a dead controller, but the company sent me a brand new unit to replace it and didn't even require that I ship the old unit back. I have to say I've been EXTREMELY impressed. So far, I've used it multiple days as a garage heater but it's primary purpose will be to heat my camping rig for winter camping trips. A couple things stand out verses all the other "Chinese" cheap heaters out there from what I've seen on Youtube videos. This unit is virtually 100% plug and play. There is almost nothing to assemble, other than the exhaust pipe and muffler. Everything is self contained and already assembled inside the unit except the exhaust pipe and muffler. I really like that the fuel tank appears to be spill and vapor proof with a nice robust seal. No leaks or fumes from my experience so far. Once you wire up the positive and negative, you literally just push one single button to turn it on and it does the rest. I've been exclusively using the really simple remote, because the controller doesn't have labels on the buttons and not any good instructions on what does what. After a few minutes it fires up and you have heat in about 3 or 4 minutes. My unit never smoked at all and has burned perfectly clean. You can control output by increasing or decreasing the heat, but I wouldn't say there's a huge variation between maximum and minimum. My biggest worry is that it may work too good for heating up such a small space in my rig. Turning it off, is a simple push the off button and it goes into the shutdown mode, which kills the burner, turns off the fuel pump and then runs the fan for a few minutes to cool things down. So far I've used it about 5 full days, running about 10-12 hours a day. At full power, a gallon of diesel seems to last roughly 8-10 hours, give or take. I wasn't timing it, but the efficiency is impressive. It's still a cheap Chinese diesel heater in the end, but after using it and reading all the reviews of the other more popular brands, these guys have done a much better job than most, in this price range. The customer service was extremely impressive as well. The best part compared to other units is the exhaust comes out the side so you don't have to build a platform for it to stand on although you don't want to set it on something that isn't combustible. Edit: Update 1/3/2024: Been using this heater as a garage heater and out camping and so far it's worked flawlessly. One tank of diesel will last at least 10 hours on full power, maybe 12 hours. Camping, I ran it on the low setting, which is all I needed to heat a roof top tent and one tank lasted 19 hours straight and still has diesel left in it the tank when I turned it off. Best part of all, is simple set up and use. I set the unit on a little metal stool I have, attach the exhaust (I don't even bother with a clamp) plug in the cig lighter to my Jackery, push one single button on the key fob and after a few minutes of starting up it's working. Then route the ducting and it's all done. So easy.

The update: After a year of use I needed a small item where the insulation had come undone. We are talking about typical tape insulation. I contacted the company and they dispatched a replacement to me.

There are a lot of diesel heaters on the market but the difference is customer service. How many companies do you know that help you out a year later and not try to gouge you for money? I see that this specific model isn't available but having experienced the good quality and really good customer service I wouldn't hesitate to buy another LF Bros heater even if it's a different model.

Original review.

First, my reviews are for products I buy for myself or family and are paid for by me. I do not nor will I accept any free products in exchange for a review and the only time I will accept a product at no cost is if it's a replacement for something I already paid for and its part of warranty or repair.

About the heater. I needed a heater for emergency situations where there a power outage and regular heating isn't available. While we use a generator for electricity and our heating is natural gas, after a certain time we turn the generator off for quiet time and the blowers for the gas furnace will not work. Also, the garage gets very chilly in winter and I wanted something that works better than most portable propane heaters.

I got the heater and the first thing I noticed was the build quality. While the delivery service wasn't very careful that isn't the fault of LF BROS, despite some rough handling enroute the heater appeared to be fine. It was very easy to setup, put some fuel in it, connect the exhaust and outlet hose connect the 12 VDC adapter. I wanted to insure a good 12V source for the first run although I found it works just as well using a 12 VDC battery, just make sure it has a good charge.

You just press "On" and wait a short time for the glow plug to ignite the fuel and the heat starts. You can hear a slight tic tic as the fuel pump works but I'd rather know the fuel pump is working than something silent and you are left wondering so that works just fine. In operation the heater is quiet. Naturally, any time air is pushed through a hose that sound can be heard but its about the same as comes from a floor register with gas heat. In other words, no big deal and again, you know it's working.

While it's possible and safe to run the heater inside so long as you vent the exhaust outside, I decided to have the heater outside and run the heater hose to the inside. Rather than cut any holes in the wall I simply used a piece of acrylic to make a spacer for one window that slides open, cut a 3" hole and used the hose vent connector to secure the hose to that. This let me bring in heated air without any worry about anything. It worked like a charm and allowed me to simply add the spacer when needed. Since the space remains connected to the heated air outlet I can also move it to the garage and using the same setup, get heat inside the garage quickly, again, without cutting any holes.

I tired the various fueling levels and settled on a mid range where the heated air coming out of the vent inside the house was about 170 degrees F. The amount of heated air produced by the LF Bros is amazing. Since it's heated air and not a radiant heater letting the heated air circulate provides warm in even large spaces. A small fan running off a battery moves the heated air around so that the entire lower floor of the home get nice and warm. I could use a higher fuel setting but for my application it just wasn't needed.

The LF Bros heater is very efficient and given the cost of using portable electric heaters this heater is far more practical and cost equivalent. Electricity prices are skyrocketing and so as little fuel as this heater uses its not a hit to the budget. While electric heaters are efficient they also require longer to heat up larger areas and do require 120V utility power to function.

The built-in handles make transporting this heater easy. Since it has a buil-in fuel tank using the handles insures you aren't tipping it during movement. The exterior is covered completely by a shroud for good looks as well as keeping the elements out.

This heater gives me peace of mind knowing that with just a 5 gallon container of fuel I can have plenty of heat for about weeks. Our most recent power outage lasted 5 days and its still on the single filling of fuel since it isn't run constantly. The way I use it the heater could probably provide adequate heat for a month on that much fuel but your results may vary depending on temperatures.

The heater hasn't ever failed to start, not even once. I just press "On" and know it will work.

Now about customer service because that is often just as important as the product itself. I did have a minor question regarding operation and using the message to manufactiurer feature via Amazon, I sent LF Bros the query. My message was sent in the AM my time and by evening I had an answer. How is that for quick service? My question was about a slight smell coming out of the heated air vent, it wasn't CO because I have new CO monitors throughout the house and none alerted. I seems that perhaps a seal was moved during the shipping and subsequent heavy handed delivery (again, not the fault of LF Bros). LF Bros got back to me the same day and resolved the issue immediately. While each customer service request can be different, I can say that LF Bros came though with flying colors and that gives me the confidence so many other companies these days have trouble providing.

I recommend LF Bros to anyone needing a portable heater. Their products and customer service are of the highest quality, they respond quickly and take good care of their customers. i would not hesitate to purchase products from LF Bros.

This is definitely more expensive than some of the others, but I think it might be worth it.

It came packed better than most things I've seen, very solid and protected.

The fit and finish is very good. No sharp edges, everything needed was included. It included a remote, which I'll never use.

The instructions are somewhat lacking, but as long as you pay attention to the electronic control unit model, and follow the correct steps, it's not a problem

It primed fine on the first fill using the recommended priming procedure one time. It started right up on first start without needed a re-prime.

Very minimal white exhaust on startup, and more but still not much on shutdown. on startup there is a low kerosene type smell, but not much. I especially like the side exhaust, which I was specifically looking for.

Puts out a ton of heat. I was able to get my 2-car garage into the low 60's, while it was below freezing outside. My garage is insulated, but not great.

Game changer for doing maintenance or garage activities in the winter. Much safer than a bullet heater. I have CO/CO2 sensors in the garage at the appropriate locations, and no issues after running through a full tank and a half.

On full - it does go through fuel pretty fast, but once I got to where I wanted, I was able to throttle it back to 50% or so and maintain for an extended period of time, on a very cold day.

Very happy with this product. It is light weight and easy to move if you need to. I use it to heat my garage and my truck camper. The gas cap fits tight and has not leaked. It was easy to start right out of the box. The unit has a ticking when starting but after it starts the only noise is from the fan, very quiet. The only issue I have with it is that the display for the gas level stopped working after the first tank of gas. There is a side fuel level window and that is what I use. I have not looked into or tried to fix the display. The display can be removed from the unit but only has about a 6” lead, I wish it was longer so I could put the display inside my truck while camping. Great product and worth the extra cost over the other diesel heaters. This also came with a remote that is very handy. On my last camping trip I ran the unit after startup on high for ten minutes then I turned it to the lowest setting. It ran for over 12 hrs and only used 1/2 of the fuel.(2.5L).

This heater is great. I purchased it because I needed to be able to move it around for different purposes. It keeps the camper cozy, the greenhouse plants from freezing, and I've even used it on a small sailboat. It's efficient, simple, rugged, and powerful. My 1500wh battery bank can power it for well over a day. I'm so impressed I will probably buy another soon. The only qualm I have with it is the power supply. It is very short and fragile. Mine stopped working randomly and smoked me out. I am using a 12v battery but would like to get a better power source to use with my battery bank.

I had been looking for a diesel heater for our camper trailer for sometime. Originally was looking to purchase and install one internally, just wasn't looking forward to routing exhausts and fuel lines and the rest. Then this popped up for me, and I saw a review of someone just poking the air outlet in under the canvas of their camper. And, for me, that was a brilliant idea. Being able to keep the entire unit outside the living area is a plus for me, significantly reduces the risk of breathing combustion fumes in.

As for this little heater; the reviews were good, both on amazon and from further research. Chinese unit, but reviewed as well made and effective. And it lived up to that for sure. The box was quality. The packing was neat and orderly. The unit is insanely good looking, and feels worth more than it costs.

It also works extremely well. I replaced the included power cables with 25amp twin core wire and a merit plug rated to 15amps, around 2 meters long. The unit tops out just shy of 10amps current draw on start up. Once it's up and running the power usage is reduced by half or more depending on fan speed. Even on low fan speed, the heat output is awesome. It took only a few moments for it to noticeably heat up the interior of our dual fold camper on a 1 degree morning. Could see steam rising off the canvas from outside, looked like we'd elected a new pope. I did have to redo all the wiring in said camper to ensure it could run, as it was going into low voltage shut down, so worth considering if your current wiring is up to task. It can run on 240v with the included power brick, using the original ring terminal wiring included.

I haven't used the included exhaust, I don't find it to be all that loud without it. And I've also bought new ducting, long lengths, to use with it. However, it did have enough out of the box to be able to use it easy enough.

Straight up; Great little unit if you want a powerful standalone unit that is cost effective in both purchase and running costs.

My use case is likely different than other folks, but the ultimate goal - heat.

I needed a portable heater (ok) to use remotely (ok) to provide heat to my helicopter transmission bay and cabin in the morning to warm up the cold soaked components. I needed the unit to heat both areas at the same time, and to do it quickly while not creating a risk of fire. I also needed the unit to heat my remote camp sleeping area throughout the night, and during the day if we ended up getting weathered out.

I ended up purchasing 3" silicon automotive racecar ducting, a 3" Y valve to direct the heat to my intended target areas on the aircraft. At -25°C this little unit not only kept me warm all night, but after about an hour on the machine, had the oil temperatures up into the green, and the computers warm and ready. The real test was always that might flight helmet padding had softened up, and were warm to the touch. A treat when flying in these colder conditions. For full transparency, I did have small buddy heaters running all night, but for anyone in industry, these on their own are generally not enough at these lower temps.

Generally companies use large heaters to get these results, and when operating remotely you have to adjust your thinking. The fact that these tiny little heaters can provide this level of reliable heating is incredible. One tank of Jet Fuel ran all night heating my sleeping area, with plenty of fuel remaining to warm up the machine. Never once did it run dry, and generally had 1/4 tank still in reserve after both tasks were completed.

I simply used my fuel sample from the previous day to top it back up! Perfect! I have been using this heater for two winters, zero hiccups.

I've had this product sitting at home in the box in the laundry room, unopened for several months.Because I found myself in the hospital with the cardiac arrest.. I opened the box up yesterday. And I mean, just yesterday, an assembled it. And went and got some diesel and a diesel jug, I filled the thing up full of fuel plugged. It in and started it up. Hmm, I could hear the turbines start to spool up and the pump detect 3 or 4 times and then it was running. And I've heard some people complaining about the pump noise from these units, but I'm here to tell you, there's no pump noise. It's awesome, puts out great heat on low setting and on high setting, walking up to the thing when you're about ten feet away from it.You can feel a blowing heat.I think it's great

Love this, recently bought a bush block and we planned to camp there at settlement weekend. Weather was forecast for 0 degrees overnight. Did fair bit of quickish research, wanted to buy a simple reasonable quality heater, never used before so bought this one. Lives up to the reviews. Using it with a 1500w rechargeable battery and is a dream. I need to set something up for rain coverage outside the 6m bell tent but been lucky with weather so far. I put it on about an hour before bed and it’s nice to go into a comfortably warm space to get into bed. Yep, not true brutal camping but I’m not hardcore. My old dog appreciates it too. I leave it on for cpl hours and turn it back on before getting out of bed in the morning. Seems I get about 3 hours for 1 litre diesel on setting 1.5 to 3 usually. Not too loud but can definitely hear it so detracts from wildlife but that’s the sacrifice. The remote control is great but I’d like to be able to see what level it’s on from bed. My fuel gauge indicates it’s empty but it’s full, still works though. I don’t really understand the screen but I haven’t read the book. Definitely recommend, great value, just need a 12v power source and diesel. I also wrapped my duct into the tent in an oven mitt, don’t know if necessary but I’m bit paranoid about it getting hot, doesn’t seem to though.

Great little heater but the online assembly instructions didn’t want to play so lots of pieces left over, brackets and such.