HCALORY 8KW Diesel Heater, 12V Diesel Air Heater with Remote Control and LCD Monitor, Harking bunk heater Automatic Adjustment, Support Heater 10L Fuel Tank for Car, Truck, Garage,Boat, RV,Trailer

– 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.

Puts out a ton of heat if installed and ran correctly.There's a lot of info online (for similar heaters, if not this exact heater) to give you good info on installation, use and maintenance.I sorta messed mine up after quite a bit of misuse, but was easily able to figure out my issue and fix it. It would blow white smoke and fail to fire. Turns out extended running at low power, and several improper shut-downs (all user errors) caused excessive soot to build up. But it's fairly easy to disassemble and clean if you're handy. Plus, now I know how to prevent it from happening again.

Worked the first time ONLY! Now it just blows white smoke. Can't find any setting to lean out the fuel mixture. Tried it with the altitude settings, spent a full day screwing with it, pulling the glow plug. Starved it of fuel to burn the excess diesel. It comes with a .22ml fuel pump which is too much. I may have to build a new controller with an esp32 that allows me to lean the mixture out. Waste of time and effort.

Overview: This is a review of the Bluetooth version of the very common 5KW Chinese diesel heater (CDH)(although labeled as an 8KW), which is a clone of one of the name brand 5kw heaters. Even though its labeled as an 8kw, it uses that same 22 pump at the same rate, so its the same exact clone as the 5KW heaters, except it has a fancier controller.Controller: It comes with a more complex controller than most of the other clones even without the Bluetooth features. It has a voice feature to tell you basically its turning on or off, not sure that is all that useful if you are actually using it as a parking heater and trying to sleep while the heater is turning off an on. Since I am using it to try to warm up a large shop mine runs full blast all the time when I need it so I haven't really tested the temp hold feature. The controller has a slightly different and smaller 4 wire plug for the controller than most of the other 3 wire controller plugs on the CDH. It also has a separate button for reset a fuel remaining display on the controller. I suppose this would be useful if your tank is hidden, but for me the tank is right there so not a huge issue. It has both the manual mode and the room temperature mode, but a little confusing the way its labeled in the translated manual. It seems more clear on the bluetooth app. It has the ability to go into a setup mode where you can make SOME changes. For instance you can set what size your fuel tank is to make your fuel display more accurate which is not present on other controllers. I think the bluetooth feature is contained in the controller, but I will test that out eventually.Bluetooth app: It was available in the android app store, with a 1.9 star rating. based on some bad reviews, it looks like it breaks frequently and the updates may be the primary cause. At this time, it appears that my app is working and able to control the heater. The heater is in the barn near the house and if I am close to a window on that side of the house, I can usually make a connection and start/stop the heater. The controls are fairly clear in the app, and I think if you have an error its better described in the app.Wiring harness/battery: As mentioned it has a different plug for the controller than the other CDH setups. The plug to the heater is the same as other heaters. Basically you need a 12v source to run the heater. While actually running the draw is fairly minimal to run the fan and the pump, but during startup AND shutdown, a glowplug is heating and the draw is quite substantial. I was originally using a cheap low power 12v charger to keep an old battery topped off, but the charger had an issue that once it thought the battery was fully charged, it tended to just float and when the heater would kick on later, it wouldn't notice the drop in voltage, eventually leading to a problem. If you don't have a reliable 12v source and wiring that will handle the large draw of the glowplug, you will have problems with your heater.Heater unit: The heater unit is a clone like all the other CDH. I think this one has some minor issues as it runs hotter internally than my other heaters, and if I attempt to add any ducting to the heater, it will shutdown after a few minutes with an overheat/fan error. I think there is a slight drag on the fan that is causing the issue. But I have to dismount the heater to get a better look at it, so for now, I am running without my ducting.High Altitude/Advanced settings: Most CDH have the ability to do a set of keypresses that will allow you to enter an password and then enter into an advanced settings screen. From there you could adjust many things, but the one that most people were trying to adjust is the fan vs pulse rate to lower the fuel ratio when operating at high elevation to prevent the heater from sooting up and requiring service. I see that some of the setting that are normally available in that advance screen are available in this controller settings, but not the fan vs pulse rate. Unless there is another even more advanced screen, this doesn't seem to be available. There is a high altitude indicator on the display and it shows up in the settings menu, but it always shows 0.0km. There doesn't seem to be a way to adjust this elevation (which potentially could reduce the need to set the pulse rate manually if its automatically reducing it based on altitude). And considering I am at 7300ft which is about 2.2km, it should be showing if it was working. So probably not a great choice if you are at high altitude a lot like me.Since I another heater with a more standard controller, I may play around and see if I can manually adjust the pulse rate with my other wiring harness and controller and see if that pulse rate info is stored on the control board in the heater or the memory of the controller. Otherwise I assume that I will eventually have to disassemble and clean the heater every summer which sounds like a messy job because of my altitude.

Great product seller works well to help with advice or any problems

– 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.

Puts out a ton of heat if installed and ran correctly.There's a lot of info online (for similar heaters, if not this exact heater) to give you good info on installation, use and maintenance.I sorta messed mine up after quite a bit of misuse, but was easily able to figure out my issue and fix it. It would blow white smoke and fail to fire. Turns out extended running at low power, and several improper shut-downs (all user errors) caused excessive soot to build up. But it's fairly easy to disassemble and clean if you're handy. Plus, now I know how to prevent it from happening again.

Worked the first time ONLY! Now it just blows white smoke. Can't find any setting to lean out the fuel mixture. Tried it with the altitude settings, spent a full day screwing with it, pulling the glow plug. Starved it of fuel to burn the excess diesel. It comes with a .22ml fuel pump which is too much. I may have to build a new controller with an esp32 that allows me to lean the mixture out. Waste of time and effort.

Overview: This is a review of the Bluetooth version of the very common 5KW Chinese diesel heater (CDH)(although labeled as an 8KW), which is a clone of one of the name brand 5kw heaters. Even though its labeled as an 8kw, it uses that same 22 pump at the same rate, so its the same exact clone as the 5KW heaters, except it has a fancier controller.Controller: It comes with a more complex controller than most of the other clones even without the Bluetooth features. It has a voice feature to tell you basically its turning on or off, not sure that is all that useful if you are actually using it as a parking heater and trying to sleep while the heater is turning off an on. Since I am using it to try to warm up a large shop mine runs full blast all the time when I need it so I haven't really tested the temp hold feature. The controller has a slightly different and smaller 4 wire plug for the controller than most of the other 3 wire controller plugs on the CDH. It also has a separate button for reset a fuel remaining display on the controller. I suppose this would be useful if your tank is hidden, but for me the tank is right there so not a huge issue. It has both the manual mode and the room temperature mode, but a little confusing the way its labeled in the translated manual. It seems more clear on the bluetooth app. It has the ability to go into a setup mode where you can make SOME changes. For instance you can set what size your fuel tank is to make your fuel display more accurate which is not present on other controllers. I think the bluetooth feature is contained in the controller, but I will test that out eventually.Bluetooth app: It was available in the android app store, with a 1.9 star rating. based on some bad reviews, it looks like it breaks frequently and the updates may be the primary cause. At this time, it appears that my app is working and able to control the heater. The heater is in the barn near the house and if I am close to a window on that side of the house, I can usually make a connection and start/stop the heater. The controls are fairly clear in the app, and I think if you have an error its better described in the app.Wiring harness/battery: As mentioned it has a different plug for the controller than the other CDH setups. The plug to the heater is the same as other heaters. Basically you need a 12v source to run the heater. While actually running the draw is fairly minimal to run the fan and the pump, but during startup AND shutdown, a glowplug is heating and the draw is quite substantial. I was originally using a cheap low power 12v charger to keep an old battery topped off, but the charger had an issue that once it thought the battery was fully charged, it tended to just float and when the heater would kick on later, it wouldn't notice the drop in voltage, eventually leading to a problem. If you don't have a reliable 12v source and wiring that will handle the large draw of the glowplug, you will have problems with your heater.Heater unit: The heater unit is a clone like all the other CDH. I think this one has some minor issues as it runs hotter internally than my other heaters, and if I attempt to add any ducting to the heater, it will shutdown after a few minutes with an overheat/fan error. I think there is a slight drag on the fan that is causing the issue. But I have to dismount the heater to get a better look at it, so for now, I am running without my ducting.High Altitude/Advanced settings: Most CDH have the ability to do a set of keypresses that will allow you to enter an password and then enter into an advanced settings screen. From there you could adjust many things, but the one that most people were trying to adjust is the fan vs pulse rate to lower the fuel ratio when operating at high elevation to prevent the heater from sooting up and requiring service. I see that some of the setting that are normally available in that advance screen are available in this controller settings, but not the fan vs pulse rate. Unless there is another even more advanced screen, this doesn't seem to be available. There is a high altitude indicator on the display and it shows up in the settings menu, but it always shows 0.0km. There doesn't seem to be a way to adjust this elevation (which potentially could reduce the need to set the pulse rate manually if its automatically reducing it based on altitude). And considering I am at 7300ft which is about 2.2km, it should be showing if it was working. So probably not a great choice if you are at high altitude a lot like me.Since I another heater with a more standard controller, I may play around and see if I can manually adjust the pulse rate with my other wiring harness and controller and see if that pulse rate info is stored on the control board in the heater or the memory of the controller. Otherwise I assume that I will eventually have to disassemble and clean the heater every summer which sounds like a messy job because of my altitude.

Great product seller works well to help with advice or any problems