An upgraded version of TB2 diesel heater. TB2S engineered with a reinforced aluminum body, redesigned combustion chamber, and advanced algorithms, achieves 36% higher fuel efficiency, up to 50hrs operation time. Includes a 1.5m extension cable for indoor control access. Smart temperature control function requires a wireless remote control(optional purchase).
Ultra Low Price: $189.99 - Limited-Time Offer! An upgraded version of TB2 diesel heater. Engineered with a redesigned combustion chamber and advanced algorithms, achieves 36% higher fuel efficiency. With automatic Start-Stop, Altitude Mode, and APP control Functions. Rated power 8KW features a 6L built-in fuel tank, dual 12V/24V and 110V/220V or 220V-240V power options, and bluetooth control. Ideal for trips and camping.
Powerful & Efficient
Engineered with a reinforced aluminum body, redesigned combustion chamber, and advanced algorithms, this heater achieves 36% higher fuel efficiency. You get stronger, faster heating while significantly cutting diesel consumption—perfect for cost-conscious users.
Quiet & Reliable Operation
The enlarged 90mm duct reduces wind resistance and noise, delivering quiet and consistent heat. Improved thermal management also lowers the risk of overheating, ensuring comfort and durability.
Smart Adaptation Under 18000ft
The panel automatically adjusts combustion for optimal performance up to 18000 ft (5.5km) and displays real-time altitude. No manual setup—ideal for mountain trips and high-altitude camping.
Monitor Easily, Stay Secure
Use the HCALORY app via Bluetooth to adjust settings, set timers, and check system status. Integrated protections include overheat and short-circuit prevention for complete peace of mind.
Smarter Control
Comes with an AC/DC adapter for use in homes, RVs, or vehicles. Stay perfectly warm and secure with our Conductor Smart System, featuring wireless temperature sensing for effortless comfort and peace of mind. (Note: Upgraded wireless remote sold separately.)
Upgraded wireless remote sold separately (optional purchase), featuring smart temperature control function.
Host *1
AC-DC Power Apply (Optional purchase)
Wire harness *1
Exhaust Silencer *1
Exhaust pipe *1
Intake pipe *1
Air Outlet Pipe *1
Air Filter *1
Vents *1
Manual *1
Fixture Accessories set
LCD Switch *1
Remote control *1
Controller extension cord *1
1. What makes the TB2S different from the previous TB2 model?
The TB2S features an upgraded combustion chamber, an advanced fuel algorithm, and an automatic Start-Stop function. It delivers up to 36% higher fuel efficiency with faster heat-up and more stable performance—especially in cold or high-altitude environments.
2. Can this diesel heater be used at high altitudes?
Yes. The TB2S automatically adjusts combustion through its Altitude Mode, ensuring reliable performance up to 18,000 ft (5.5 km). It’s ideal for mountain trips, ski cabins, and high-elevation camping.
3. How loud is the TB2S during operation?
The redesigned 90mm air duct reduces airflow resistance and noise. At one meter, it measures around 65 dB (similar to a normal conversation). When installed outdoors or under a vehicle, the perceived noise level drops below 50 dB, ensuring a peaceful sleep.
4. How can I control the TB2S heater?
You can control it via the HCALORY mobile app (Bluetooth), ordinary remote control, or through the included LCD panel. Set temperature, timer, and monitor real-time status directly from your phone.
5. What power options does the TB2S support?
It supports both DC 12V/24V and AC 110V–220V/220V–240V through an optional AC/DC adapter, making it ideal for home use, RVs, trucks, cabins, and workshops.
6. How long can it run on a full tank?
With a 6L (1.59 gal) built-in tank and efficient fuel consumption of 0.03–0.1 gal/h, the TB2S can run up to 62.5 hours continuously—almost a full week of nighttime heating on one fill.
7. Is it safe to use indoors or overnight?
Yes. The TB2S is equipped with overheat and short-circuit protection, plus wireless temperature sensing via the Smart System. For safety, ensure proper ventilation when used in enclosed spaces.
8. Can the TB2S heater warm multiple areas in my RV or van?
Yes. You can pair the TB2S diesel heater with an optional 90mm Y Branch Air Ducting Connector to direct warm airflow into multiple zones of your RV, camper, or van. This add-on makes it easy to create a multi-room heating setup, improving comfort and efficiency for different areas.
9. Where should the TB2S not be used?
Do not operate the heater in environments with flammable vapors or dust, such as fuel depots, lumber yards, granaries, or gas stations. Keep it away from fuel tanks, compressors, fire extinguishers, clothing, and other flammable materials to prevent fire hazards.
10. How should I install the exhaust and ventilation system?
Keep all air inlets and exhaust pipes unobstructed to maintain safe ventilation. The metal exhaust pipe must always vent outdoors to prevent carbon monoxide from entering enclosed spaces. Avoid operating in sealed or poorly ventilated areas.
11. How can I get CO and temperature detection on my TB2S heater?
Purchase the compatible wireless remote separately—it integrates CO monitoring, temperature sensing, and smart control, all designed to work seamlessly with your TB2S.
12. About Upgraded Wireless Remote Control
Applicable Models: TB2S, TB2S+, TB MAX, TC2S
NOT Applicable Models: TB2
TB2S Diesel Heater Toolbox 2s, 6L APP Control Upgraded
Overall a good unit, but it took an additional $119 of amazon parts to bring it up to a functional state I could trust. Read reviews out there an replaced fuel line, added insulation over fuel line, moved fuel pump, added petcock, rerouted the wire harness to the display (hole thru side wall isn't large enough to pass both ends of the wiring harness thru), relocated the screen so it isn't behind the air intake, installed a silicone 90deg 4" adapter on heater output and installed a 4" quality 2 layer hose, modified exhaust so it won't waggle in the wind and fatigue the exhaust port, added caps to keep out bugs and water, added something to hold duct hose in a nice bundle, picked up a case for all of the spare parts and accessories, added some material around the filler neck so that spilled diesel won't run into the unit, etc...So like everyone says, plan to upgrade before first use.
From looking at the TB Max design I think Hcalory fixed several of these issues, but not being able to quickly open up the housing where there is potentially spilling diesel fuel is a deal breaker for me. The tool box door opens nicely and gives excellent access to interior.
Once upgraded, it primed without issue, fired up and ran great on Premium Diesel on a 2 deg F night here in WI. Night started around 25 deg. Ended up at 2deg by 7 am. Kept roof top tent without insulation toasty all night with plenty of diesel to spare.(Not enough for 2 nights without refill.) Wired controller worked great.
Negatives: HCalory didn't ship my wireless controller. Each time I reach out they are very responsive, it's just out of stock.
And the wire protectors for the screen are very stiff in the cold. Does not want to bend. That is very minor. I'm happy with it!
This heater works incredibly! It was super easy to set up and is very fuel efficient.
This is not your average camping heater. It’s more than enough for the family camping trips but also has advance features for permanent installations. The you can create scenes, timers and adjust altitude in the app. The control panel acts like a house thermostat. The TB2S had no annoying ticking sound. Enjoying it so far.
Used the new tb2s for 5 days 8-10hrs a night still a lot of diesel left in the tank worked perfectly well on freezing temperatures as well very quite low power consumption and compact definitely recommend!
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