HCALORY Diesel Heater 8KW,12V Diesel Air Heater,Parking Diesel Heaters with Digital Switch and Remote Control,Diesel Heater Fuel Tank 10L for Car Trucks Boat RV Trailer Camper

– After the Sale SupportMy unit was received quickly after placing the order. While in transit, I requested a copy of the manual, which the seller promptly forwarded to me. Kudos to the seller for being prompt and supportive of the product.Even though it was packed well, my unit arrived with some small cosmetic damage to the housing, which makes me think it was packed this way from the factory. The damage was minor and would not affect performance so I proceeded to fire the unit prior to install just to check the function. The unit performed flawlessly both mounted on its side (with the fuel intake top-side) and in the conventional exhaust/intake ports down. I ended up mounting it ports down and routing the exhaust outside the building... I'll be routing the intake outside once I come up with a more robust filter option (the intake filter delivered, does a great job of keeping the noise down, but has looks like it could plug easily).-Use at High Altitude (7000' ASL)As another buyer mentioned, the altitude display does not read the current altitude of the unit, nor can you dig into the programing to adjust the altitude, or monkey about with the fuel/air flow (at least as far as I've found). That said, I believe the unit is properly compensating for my installation altitude. I've measured the maximum fuel usage and when running wide open, the unit is delivering fuel at 0.39L/hr. The specifications in the product imagery indicate a max fuel burn rate of 0.48L/hr. The fact that I'm seeing reduced fuel consumption, along with the lack of significant carbon build up or smoking (running rich) indicates that the unit is burning sufficiently lean for the elevation I've installed it at. Presently I've only run 10 gallons (~39 liters) of diesel through the heater or near 100 hours of run on low, but so far, so good.– Heat OutputThe unit is listed as a 5-8KW unit but by simply doing the math on what I've measured as minimum and maximum fuel usage, the unit is actually firing at 1.6KW (low) or 5,500BTU/hr - 4KW (high) or 14,000BTU/hr. This is well within the norms for a 5KW heater. Keep in mind, there are NO 8KW machines in this form factor, on the market, it's all just marketing nonsense.– ThermostatThe big draw for this machine was the thermostat. The bluetooth version of the controller (with the large knob at right) features a thermostat that is actually capable of turning the heater on and off. Unlike most cheap diesel heaters on the market (which only throttle the fuel input and fan speed – reducing the unit to idle when a set temperature is reached) this one turns off. This was an important feature for my application, as I'm using it to keep our off-grid pump house above freezing during the winter months. You'll have to enter the program menu to setup the on-off thermostat feature, once setup the machine will go through a startup and shutdown process based on your set temperature. And this function works flawlessly! – at the expense of some additional power usage to support the glow plug heating at both startup and shutdown. No idea yet, how this impacts the life of the glow plug, but I've bought a spare - just in case.-Observed Power UsageWhile running this unit draws about 10W on low and 35-40W on high. Startup requires a minimum of 120W - I'd suggest a power supply that can handle 15A at 12V.–Bluetooth and RemoteI haven't paired the included remote, I just don't need it for this application it is likely already lost in some parts bin in the shop. The bluetooth application works fine, though it is pretty minimal in function. My phone connected to the heater without issue and the app allows control over the heater, as expected. The most useful function of the app is that it delivers the burn chamber temperature - I wish this was displayed on the actual thermostat control, as it is yet another indicator of how well (or poorly) the heater is running.–Overheating IssueInitially I had overheating problems – anytime I tried to run at full burn. This overheating occurs WITH or WITHOUT the ductwork installed. Since the burn chamber is cooled by the airflow delivered over the burn chamber fins, I looked for obstructions there. The burn chamber heat-exchanger fins looked good, with little to no casting flash. The culprit was the simple heater air intake "screen" which is molded from plastic and features a wide flat grid. This screen had unacceptable amounts of flash and greatly reduced the airflow through the unit. I removed the poorly made factory screen and used a large hose clamp in its place. Later I picked up a nice 3D printed screen off of ETSY that offers some protection on the intake and solved the overheating issue, by allowing improved airflow across the unit.

So this is my 3rd diesel heater I have 1 in garage and 1 in my camper trailer I'm very familiar with these little Heaters. First one was in 2019 and it's still working. I bought this one for the the bluetooth capabilites. The harness and connectors to controller are different so I couldn't just slap it on my old unit. But it works great. Has a faster start up and cool down times compared to my older unit. I have yet to get an error code since I know how to prime the line well then connect it to heater. Bunch of NOOBIES blame the heater for their lack of common sense. But at the price point. Good deal. 👍

I recently moved into an RV full time and I purchased this so I wouldn't go through so much propane to run the heater. It has worked well. It gets very warm and it seems pretty efficient. I can run it on high all night and it will use about a half a tank of fuel (about 1 gallon) If I run it on its lowest setting, it will only use about 1/4 of a gallon. By default, the heater level is measured by Hz on the controller. It ranges from 1.7(low) to 5.4(highest). I have noticed if I try to run it in the 2.1-2.6 range, it will flame out after a bit and give an error message. I know there are ways to go into advanced settings to make adjustments and I've heard of people re-tuning them for more efficiency but I haven't gotten that far with it yet. For my needs, it has served me well. Installation was not too difficult. Just had to drill a few holes and connect everything as it shows. If you have trouble, there are lots of youtube videos that can help.

Pro's1. Fairly easy to setup2. Heat out put and controls well done3.Sips fuel and easy to regulate temps4. Main unit good value for the money5. Longevity. Time will tell.6. Heater fan and pump quiet. Startup it gets a little loud but settles down quickly.7. Manual states to position the muffler at an angel and the water condensation hole at the bottom. Heed this recommendation people!Con'sReplace and don't trust:1. Fuel line "Junk"2. Fuel clips "Junk"3. Fuel tank "difficult to stop the leaking" Buy another tank!!!4. Exhaust pipe and hangers. Replace! they are poor quality.Not found a way to switch the temps to Fahrenheit. I can deal with Celsius just don't like it.Last note: be very careful how you run the fuel line.The exhaust is SUPER close to the inlet and the fuel intake nozzle.That exhaust gets red hot and will melt your fuel line in a blink of an eye.Always use a fuel line filter and mount the pump at a 45 deg angle.I'm using a voltage inverter for the 12 VDC. 120V single phase outlet.Will be hooking up a decent size car battery and trickle charger in case of a power outage.Also note: the Fuel pump comes with diesel fuel inside! Leave those yellow caps on until you're ready to hook up the fuel lines. Good Idea to prime the lines too. You do not want the pump to run dry at any time. The fuel lubricates the pump and prevents wearing.It's manly for emergency use.Initial startup this thing smoked up my entire shop. My fault, priming the pump I blew excess fuel into the combustion chamber and it dripped out the exhaust manifold. After 4 to 5 minutes it cleared up and appeared to setting down. Next cycle I'll see if it smokes again under normal controls.So far with the changes mentioned above, I'm happy with the purchase so far.

I installed this into a 4 wheel camper pop up trailer to replace a bulky propane heater. It works great and only have had to turn it up to three on the coldest of nights. The only problem I have is that my battery isn’t big enough to run it full time. Make sure you have 100amp hr battery. My 40ah lead acid batteries don’t cut it.