Experimenting with the new custom heater at home went great however using it overnight at Windrock (Nov 10th through the 13th) was going to be first true test. It was warm the the night of the 10th and 11th but was 37* the night of the 12th. The Cruiser was parked too far away to use the 12V so I used the Ecoflow instead. The cig-lighter adapter worked great, fired up the heater, and it produced amazing heat all night. The next morning was when I had problems. Running the heater on the lowest setting uses a lot more fuel than expected. It's a bit backwards. Low heat uses lots of fuel but high heat uses less fuel. We still had plenty but it was a bit of a surprise.
The big problem was when Shannon said "Ugh, Jon. The heater turned off". Diesel heaters cannot be shutoff instantly. They have to be cooled down otherwise pulling the plug will cause residual heat to crack the case. I ran to the tent yanked the cords off and connected it to the 12V on the Cruiser and powered it back on immediately. In the 2 minutes that it took to get everything running again, smoke was coming out of the air intake. No permanent damage was done. My problem was that current draw was more than I anticipated. The Ecoflow river told me I had 24 hours of runtime but simple math with current draw of the heater works out to 8 to 11 hours. The Ecoflow was done after about 10 hours of use and just shut off. Crisis averted.
Since Windrock, I've sent the Ecoflow River back to Walmart.com and purchased the Ecoflow River Pro. 2.5 times the capacity of the Ecoflow River and a true 22 to 26 hours of runtime. The Ecoflow River Pro was a refurb unit for $399 but a better fit for the heater and my family.
We brought the diesel heater to the Christmas party and I used it to warm the tent before going to bed but shut it off after an hour. I started it up the next morning from the remote and it heated a massive 6 person tent quickly. Woot. As we were packing up, I had it running on medium high heat just for the hell of it. I was sweating after 15 minutes and the tent was becoming unbearably hot. Fuel usage with the heat cranking was lower than expected. The River Pro had tons of battery capacity left and this was a very successful trip.
Quick summary.
Pros:
Hot dry heat easily warms large areas even on the lowest setting.
Fuel efficient for the heat output with a 5L container lasting 12 hours or more. A diesel jerry extends that to a week.
Flexible power options from the Cruiser, Ecoflow, or power supply.
Magnitudes better than a buddy heater.
Cons:
Diesel stinks and is messy. Startup produces lots of smells, even a faint hint inside of the tent.
This doesn't pack small. The heater is large, the battery bank is large. Need to carry a diesel jerry for multiple days.
Vent on the diesel fuel tank leaks when turned on its side but easily mitigated.
Unit has to be away from the tent and duct work has to be used through a door or window for the heat.
Expensive to build.
Notes:
- Heater performance varies a bit. The maxpeedingrods produces the most heat but the controller and voltage errors suck. I would build another Hcalory kit again and I've since made some modifications to make it even better.
- The notorious fuel pump tick is quite noticeable on the maxpeedingrods but almost silent on the Hcalory kit.
- The Hcalory kit uses the much more universal "blue" controller. Loads of user information and videos on how to use this and program it. The other common "black" controller is also available.
- The Hcalory kit comes with a bad ass remote control with LED display that lists outside temp in C* or F* and has automatic control. It can also be switched to manual Hertz mode for full control. Power on and power off through the remote control is quite nice. I didn't try the more basic remotes from the other heaters.
- Never buy a heater based just on a bluetooth feature. The app is almost useless and its primary focus is to get on your phone and collect data. I shouldn't have to connect to the internet to use a diesel heater.
- You cannot mix and match controllers and heaters, I tried. The harness is the same but the controller is married to the heater. I depinned the controller on one and tried to use it on another heater. It wouldn't even power on.
- Purchase a heater based on controller and remote alone.
- The 2kW is a smaller heater that produces less heat. The 5kW and 8kW are identical.