Which Diesel Heaters Brand Wins?

described in the transcript as a 'nullin one' (likely a caption garble of 'all-in-one') 110V/12V/24V 5 kW diesel heater, rated lowest heat setting around 4,700 BTUs; transcript states the highest heat setting as '177,000' BTUs, which is implausible for a 5 kW heater and likely a dropped or duplicated digit (plausibly meant 17,700), kept verbatim and flagged rather than corrected. Includes remote control, LCD screen, AC to DC power adapter, exhaust already plumbed. Rated the heaviest at 19.23 lb

claimed 8 kW, claimed to heat to 212 F within 10 minutes, claimed fuel consumption as low as 0.02 gallons per hour, includes both a 110V AC to DC power supply and a 12V DC power supply (the only one of the four with both built in), storage compartment for the remote, weighs just over 16 lb

claimed 8 kW (8,000 watts), claimed to warm up in under 10 minutes, Bluetooth app control, claimed to provide 8 hours of continuous heat on 1.3 gallons of fuel, weighs 17.43 lb

transcript states the heater is 'supposed to deliver 8,000 KW which works out to just over 27,000 BTUs'; the BTU math (8 kW times roughly 3,412 BTU per kWh equals about 27,300 BTU) is consistent with an actual rating of 8 kW / 8,000 W, so '8,000 KW' as stated is almost certainly a caption unit error, kept verbatim and flagged rather than silently corrected. Includes remote control, 12V LCD display, silencer; weighs just over 15 lb

peaked at 116 W during warm-up, about 24 W less than the H Calory

peaked at about 140 W during warm-up, about the same as the Vevor

peaked at about 137 W during warm-up

climbed to around 100 W before the test power source (a solar power station) could not keep up, throwing an E-01 low voltage code; after switching to a 120V AC to 12V DC converter rated for 200 W, the unit ran normally

on highest fan speed (the most of the four heaters), about 13.6 W on lowest fan speed

on highest fan speed (2 W more than the Vevor), about 12 W on lowest fan speed

on highest fan speed, a little less than the Silvel; about 10 W on lowest fan speed

holds steady around 47 W on highest fan speed once fully warmed up

peak noise during warm-up; very close to 74 dB on highest fan speed (transcript shows a caption-split decimal '7 4 DB', read as 74); about 61.6 dB on lowest fan speed

on highest fan speed, the quietest of the four heaters at that setting; 62.4 dB on lowest fan speed, a little noisier than the Silvel and Vevor at that setting

on highest fan speed, about the same as the Silvel; 61 dB on lowest fan speed, about the same as the Silvel

on highest fan speed; close to 60 dB on lowest fan speed

on highest fan speed, the fastest of the four heaters; transcript states '2343 mph' on the lowest fan speed calling it 'the fastest yet', which is physically implausible and almost certainly a garbled decimal (plausibly meant around 23.43 mph), kept verbatim and flagged rather than corrected

on highest fan speed, the fastest recorded up to that point in the test; about 20 mph on lowest fan speed

on highest fan speed, the same as the Silvel; about 19 mph (8.5 m/s) on lowest fan speed

very close to 34 mph on highest fan speed; around 16 mph on lowest fan speed

air outlet around 326.00 F on high fan speed, the hottest of the four; exhaust pipe around 240 F; on low fan speed, air outlet around 262 F

air outlet around 300 F on high fan speed, around 315 F on low fan speed (the hottest low-fan-speed reading of the four); heating element around 430 F; exhaust pipe reading given only as 'around 209' with no unit stated in the transcript, kept verbatim and flagged as likely incomplete

exhaust pipe around 300 F, heating element around 375 F, vent air around 240 F on highest fan speed

exhaust around 350 F, heating element just inside the air outlet around 375 F, air temperature out in front of the vent around 280 F on highest heat setting; around 277 F at the outlet on lowest heat setting

warmed up in close to 5 minutes, same as the other three; took right at 4 and 1/2 minutes to cool down and power off

warmed up in about 5 minutes, same as the Silvel and Vevor; took just over 4 minutes to cool down and power off

warmed up in about 5 minutes; had a much easier start sequence than the Silvel, powering on and beginning to warm up immediately with one button press; cool down cycle took very close to 5 minutes

fully warmed up in only about 5 minutes; took just over 4 minutes to run its cool down cycle and power off

best of the four heaters: increased the overall shop temperature by 9.2 F after a 5 minute warm-up plus 30 minutes of heating (final readings: 62.8 F at the vent, 60.6 F overall room temperature)

overall shop temperature increased by 7.3 F, barely edging out the Vevor's 7.1 F by only 0.2 F; tracked essentially tied with the Vevor at the vent through the 30 minute mark (60.6 F each)

best at-vent reading of the four heaters at 10.8 F increase; overall shop temperature increased by 7.1 F

weakest of the four heaters: at-vent temperature increased by 7.9 F, overall shop temperature increased by only 4.3 F