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HCALORY HBU1S

8KW Diesel Heater, 10L HBU1S Parking Diesel Air Heater Fast Heating12/24V with Bluetooth App Control, Automatic Start and Stop, Altitude Mode, Multiple Timed Settings for RV Garage 2025 Upgraded

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Split 8 kW heater with a 2.6 gal (10 L) tank, Bluetooth app control, up to 3 separate timers, 10 heat levels and auto start/stop. Unlike most rivals' automatic systems, its altitude mode is set manually to 8,202 ft or 16,400 ft (2,500 or 5,000 m). It can mount vertically or horizontally, and with 12V/24V support it fits vans and RVs wanting an installed heater with a large tank.

Price
$129.99
Brand
HCALORY

Prices from Amazon as of . Product prices and availability are accurate as of the date and time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of the product. As an Amazon Associate I earn from qualifying purchases.

How it compares

Compared with the other diesel heaters on this site that list each value:

  • Fuel tank capacity is higher than 77% of 35 others: 2.6 gal (10.0 L)

Compare with similar products

Videos

Recommended videos may not be an exact match for this product. Check product details before purchase.

Installation 2025 Upgraded HBU1S Diesel Heater Unit 1S | Simple Install for Campers & High Altitude Trips · Hcalory Hcalory's guide to installing the HBU1S split heater: mounting plate, warm air outlet, fuel pump and wiring.

Search YouTube for more HCALORY HBU1S videos

Specifications

These details are subject to change and may not be current. Please check Amazon or manufacturer web site to confirm before purchase.

Model
HBU1S
Manufacturer page
Link
User manual
Link

Core specs

Heater type
Split
Max heat output
8.0 kW
Max heat output (BTU/h)
27,297 BTU/h
Heating area
25 m²
Heating area
256 sq ft

Fuel

Fuel tank capacity
10.0 L
Fuel tank capacity
2.6 gal
Fuel consumption min
0.15 L/h
Fuel consumption max
0.44 L/h
Fuel consumption max
0.120 gal/h

Controls

Heat levels
10 levels
Auto start/stop
Yes
Thermostat mode
Yes
Timer
Yes
App connectivity
Bluetooth

Power

DC input voltage
12V/24V

Physical Attributes

Weight
20.94 lbs
Weight
9.50 kg

Altitude

Max operating altitude
16,400 ft
Max operating altitude (m)
5,000 m
Altitude adjustment
Manual

Safety

Overheat protection
Yes

Features

Details from the HCALORY HBU1S Amazon listing:

  • 【Quick Warm-Up, Lower Cost】Experience noticeable warmth in just 3.5 minutes and reach 212°F in only 5 minutes. With 18% higher combustion efficiency, this heater saves fuel and costs less to operate—ideal for users who value both speed and economy.
  • 【Multi-Control Convenience】Operate your heater your way: through the user-friendly HCALORY app, an optional remote, or the control panel. Set up to 3 separate timers, adjust heat from 1-10, or activate automatic start-stop—all tailored for real-world use.
  • 【High-Altitude Ready】Manually select 8202 ft or 16400 ft high-altitude mode to optimize air-fuel ratio for efficient performance in thinner air. This feature ensures steady and reliable heating across varied terrains.
  • 【Advanced Safety & Wide Heating】Equipped with multiple safety protections to prevent overheating and short circuits while delivering consistent and wide-ranging heat distribution for vans, RVs, and cabins.
  • 【Flexible Installation】Install the heater in either vertical or horizontal position using the included extension cable. This versatile design saves space and ensures accurate indoor temperature sensing for smarter automatic operation.

Similar products from other brands

Chosen for their similar specifications and price.

Similar products from other brands
This productHCALORY HBU1S VEVOR XMZ-L-D3 Sunster SH W8 Dkenicor KF620027US
Price $129.99 $101.00 $122.99 $159.99
Model HBU1S XMZ-L-D3 SH W8 KF620027US
Popular brand – – – No
Heater type Split All-in-one Split All-in-one
Max heat output (kW) 8.0 8.0 8.0 8.0
Max heat output (BTU/h) (BTU/h) 27,297 27,297 27,297 27,297
Heating area (m²) 25 25 20 25
Heating area (sq ft) 256 269 215 270
Fuel tank capacity (L) 10.0 5.0 10.0 9.0
Fuel tank capacity (gal) 2.6 1.3 2.6 2.4
Fuel consumption min (L/h) 0.15 0.16 0.26 0.15
Fuel consumption max (L/h) 0.44 0.62 0.46 0.50
Fuel consumption max (gal/h) 0.120 0.164 0.122 0.132
Max runtime per tank (hours) – 8 40 24
Heat levels (levels) 10 10 10 –
Auto start/stop Yes – Yes –
Thermostat mode Yes Yes Yes Yes
Thermostat min (℉) – 46 46 47
Thermostat max (℉) – 97 97 97
Thermostat min (℃) – 8 8 8
Thermostat max (℃) – 36 36 36
Timer Yes Yes Yes Yes
Remote control included – Yes Yes Yes
Remote range (ft) – 98 32 100
App connectivity Bluetooth Bluetooth Wi-Fi and Bluetooth –
DC input voltage 12V/24V 12V 12V/24V 12V/24V
AC adapter included – – – Yes
Running power draw (W) – 40 – –
Noise level (dB) – – 35 –
Housing material – – Metal –
Air duct diameter (mm) – 77 60 –
Weight (lbs) 20.94 20.60 – –
Weight (kg) 9.50 9.35 – –
Length (in.) – 15.00 14.96 19.29
Length (mm) – 381 380 490
Width (in.) – 5.90 5.51 18.11
Width (mm) – 150 140 460
Depth/Height (in.) – 16.10 6.69 16.72
Depth/Height (mm) – 409 170 425
Max operating altitude (ft) 16,400 16,404 18,045 –
Max operating altitude (m) (m) 5,000 5,000 5,500 –
Altitude adjustment Manual Automatic Automatic –
Operating temp min (℃) – -40 -40 –
Operating temp min (℉) – -40 -40 –
CO alarm included – – No –
Overheat protection Yes Yes Yes Yes
Low-voltage protection – Yes Yes –
Certifications summary – FCC Part 15 statement CE, WEEE, FCC, EAC, UKCA –
FCC Part 15 compliant – Yes – –
CE marked – – Yes –
Warranty – – 1 Year –

Data sources

Data for this product compiled from these sources:

Specifications last updated Oct 20, 2026.

Videos are from YouTube and load from YouTube when you play them.