HCALORY8KW Diesel Air Heater All-in-one 110V AC & 12V DC Support with Altitude Mode 5L Fuel Tank Portable Parking Heater Bluetooth APP Control Heating for Car Truck Boat RV Campers

I watched a bunch of videos about diesel heaters, read all of the comments and took a chance. My experience is that this heater was well assembled and safe to use as it came from the factory. The allegedly junk green fuel line works. There were no loose screws or hose clamps. There were no leaks. I’ve run it flawlessly for 10-12 hours daily for several weeks heating a 14’x22’ room in a garage. Does it heat it up quickly? Not really, but after a couple of hours the temperature has been at least 10 degrees warmer than outside and after that the temperature keeps rising about 10 degrees Fahrenheit an hour. That’s my experience with this heater. The room has a 12’ ceiling, so it’s a pretty good sized space. I have the heater sitting outside the building and 8’ of ducting run through the window into the room. I think it would heat quicker if mounted inside the room and the exhaust run through the wall to the outside but I’m not sure because I haven’t tried it. On the highest setting I think it will run about 12-14 hours per tankful. I use a 50 amp lifepo4 battery to power it. After the shutdown sequence is completed, within 5 minutes the exhaust pipe and heater are cool enough for me to touch and separate for storage. The exhaust pipe is actually cold within 5 minutes . I think this type heater is for people that have some experience with equipment and who enjoy operating different types of equipment. If you expect to plug and play and don’t have any idea of what to do when a clamp needs tightening or how to install a fuel line hose clamp, maybe you should consider another type of heater. Personally , I think these heaters are fun to set up and run and I am not a professional.

Love the idea of the heater and for the 10 minutes it worked, it was great. Then it overheated, error code 05. After altering the setup I had used flawlessly, no errors at all, for my L.F Bros diesel heater, a change of hose, straightening the exhaust pipe, and changing the input through the window, with a little luck, I got it to run for about 10 minutes again.I turned it off for the night's testing, but when I attempted to start it up the next morning, it would go through it's startup and then go to error 03. I never got it running again.I contacted the company and felt their response was subpar. A new machine that doesn't work getting a modicum of sympathy, a request to see the error codes and it seems and that is about all,I like the idea of the box, self contained diesel heater, but any new product should work out of the box...and if not, should be replaced. If hazardous materials are the hold up, then send a new heater, if with videos, it can be shown that the heater is defective. Guess that's too much to expect, it seems. Always go with a company that stands behind it's product. With these heaters, that is difficult .My fault was i didn't read the NO RETURN policy enough or at all. I thought it was something like you couldn't send it back to Amazon... It's literally, noo one accept returns by Amazon or the manufacturer. And you are stuck with a heater you have to fix, even though it is new.When I contacted the company, they thanked me for the purchase, and......"We are sorry for the inconvenience. However, for the E03 and E05, maybe you can check if the main board has something wrong."That was the solution in essence.... Become a diesel heater mechanic... So, I ordered a glow plug, took the heater apart and will work on it till I get it running. Maybe if that doesn't work I can buy a "main board" or whatever it needs.You don't always get what you pay for, as this was not one of the cheaper diesel heaters.Hope it just a bad glowplug and an easy fix. Again, like the unit, works great (for a few minutes) and really puts out the heat.

I've been running it all day for 6 days now, and shutting it off at night. It's very cold in colorado. Takes awhile to get my 2 car garage up to temp but it eventually becomes quite comfortable. I have to use it on high all day tho. Its a well insulated 2 car low ceiling garage. I weatherstripping and caulked many places so it's pretty weathertight. The Bluetooth app helps in the morning. I just turn it on when I wake up from my bedroom.So far I'd say I'm pleased. Wish it had slightly more power to be able to operate on a lower setting but my space size is stretching it for the size of this unit. You can't really beat the size, cost for the output, and ease of use. I just hope the longevity is there too but we shall see!In the morning I am able to get from 50 degrees to 62-65 in 1.5 hours. After that it is t shirt weather and it's 1 degree outside right now so I can't complain.Im.doing an experiment tonight overnight on the lowest setting to keep some heat in there, and want to see how much fuel it uses on the lowest setting. See if it's worth leaving on overnight or not to have a quicker warm up in the mornings. We are getting down to -17 overnight on Monday so I am going to play around with some things.Hope it lasts a long time. If not I will update my review. Much cheaper than propane and no fumes.Edit: 1/23/2024 It's still chugging along great everyday. I use it daily in my garage. I used it over a very cold snap in colorado, negative Temps and it kept the garage warm enough to work comfortably. I wouldn't expect that for you unless your garage is sealed up as good as your home like mine is. Mine is Insulated, and drywalled with a good garage door seal and spray foam on any area I could find.Still very pleased so far.

I never write reviews, but I felt my Hcalory deserved a few words. I did my research on this item through reviews and watching videos on Youtube. I basically, reviewed just about every make and model of diesel heater and landed on this one. All of these Chinese built heaters are basically the same heater design just configured differently as far as size and shape. I chose this unit because it had a more compact design, looked more stable, side exhaust, tool box design and had dual voltage capabilities of 12v dc/120v ac.This unit arrived in an undamaged box with no apparent damage to the unit. It seemed well built and I was impressed with the design. I read the owners manual and began the setup for the initial firing. I fueled and plugged it into 120v ac with the supplied power supply. The control display would not light up on the controller. It did however start and run, but I could not tell what mode of operation it was in or pair the unit with my phone app. It ran well and I was impressed with the amount of heat this small unit put out. The only thing that works on the control panel was the power button and fan speed although they do not light up on the display. I contacted Amazon a week ago and still have not heard from them. I also reached out to the manufacturer Hcalory in China who replied to my email within 24 hours. They were very polite and courteous. They had no record of me buying it from their website since it was ordered from Amazon. I gave them my Amazon order number and they said they would send me a new controller when they got one in stock? In stock, don't they manufacture these units? I have used it a few times and I really liked this little heater despite the control panel not working correctly.Today I tried to start it and it said there was an ignition failure (it talks to you). So apparently the glow plug is out now. I tried to restart the unit dozens of times with the same result. I tried hooking it up to 12v dc and it will not do anything at all, meaning it does not work on 12v dc either.Powering with 120v ac it at least it will try to go through the ignition cycle and tell you there is a failure. If you purchase this item you cannot send these units back since they had fuel in them. So now I have a heater with no control panel, it will not fire, it will not work on 12v dc and it will not heat When and if I receive a new controller, it may solve these issues. I ordered this heater on Dec 31st 2023, received it on Jan. 4, 2024 with the initial firing on Jan. 6th. Today is Jan. 13th. For now I just have a $200 way to store 6 liters of diesel fuel. I am not a happy camper."Updated Review"After my initial review the seller contacted me. They were very courteous and prompt with their questions and answers regarding my problems. They quickly offered a resolution to my problem which I accepted. I am happy with the results. They stand behind their products as I can attest. I must have got a unit that got bounced around a little too much during shipping. I really appreciate the customer service at LuneGus!

I've worked on school buses that ran a Webasto heaters? This is a knock of of them but much more BTU'S. Build quality is very good. The main heater internally look the same. Possibly made by the same company.