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HCALORY UNIT 2
Hcalory 8KW Diesel Heater 15L 12/24V Fast Heating Parking Diesel Air Heater | Parking Heater with App Control, Wireless Temperature Sensing and Auto Altitude Mode for RV Garage Camper
In Stock
- Price
- $169.99
- 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:
- Heating area is higher than 95% of 21 others: 291 sq ft (27 m²)
- Fuel tank capacity is higher than 94% of 35 others: 4.0 gal (15.0 L)
- Fuel consumption max is lower than 73% of 34 others: 0.093 gal/h (0.35 L/h)
- Weight is lower than 80% of 21 others: 16.76 lbs (7.60 kg)
- Width is lower than 78% of 23 others: 5.59 in. (142 mm)
- Depth/Height is lower than 73% of 23 others: 6.97 in. (177 mm)
Specifications
These details are subject to change and may not be current. Please check Amazon or manufacturer web site to confirm before purchase.
- Model
- UNIT 2
- Manufacturer page
- Link
Core specs
- Heater type
- Split
- Max heat output
- 8.0 kW
- Heating area
- 27 m²
- Heating area
- 291 sq ft
Fuel
- Fuel tank capacity
- 15.0 L
- Fuel tank capacity
- 4.0 gal
- Fuel consumption min
- 0.12 L/h
- Fuel consumption max
- 0.35 L/h
- Fuel consumption max
- 0.093 gal/h
Controls
- Auto start/stop
- Yes
- Thermostat mode
- Yes
- Timer
- Yes
- Remote control included
- Yes
- Remote range
- 98 ft
Power
- DC input voltage
- 12V/24V
Physical Attributes
- Weight
- 16.76 lbs
- Weight
- 7.60 kg
- Length
- 15.71 in.
- Length
- 399 mm
- Width
- 5.59 in.
- Width
- 142 mm
- Depth/Height
- 6.97 in.
- Depth/Height
- 177 mm
Altitude
- Max operating altitude
- 16,404 ft
- Max operating altitude (m)
- 5,000 m
- Altitude adjustment
- Automatic
Features
Details from the HCALORY UNIT 2 Amazon listing:
- 【3-Minute Rapid Heating 】Powered by an 8KW heating core and an upgraded aluminum exchanger that boosts efficiency by 18%, this diesel heater delivers warm air at 122°F within 3 minutes and reaches 212°F at 5 minutes, effectively heating spaces up to 269 sq. ft. Its intelligent pre‑heat cycle – a 1‑minute glow‑plug warm‑up plus 30 seconds of flame stabilization – ensures reliable startup even at ‑40°F. With low fuel consumption and durable build, it’s ideal for RVs, vans, garages, and workshops where quick, dependable warmth is essential.
- 【±3.6℉ Precision Control Constant Temp】Optimized temperature algorithm tightens the auto start/stop threshold to -3.6℉, making the thermostat extremely sensitive to tiny cabin temperature changes. It adjusts more promptly and frequently, especially in small spaces, keeping temperature fluctuation minimal. Even in a compact vanlife build, it creates a stable “micro-climate” — no more middle-of-the-night panel adjustments, just a peaceful night’s sleep for the whole family.
- 【Adaptive Altitude Mode】Smart chip control supports automatic altitude detection, adjusting fuel injection based on elevation. It automatically regulates fuel delivery to maintain stable combustion in low-oxygen, high-altitude environments — avoiding flameouts and black smoke. Whether you’re in the Rockies, the Tibetan Plateau, or a high-elevation ski resort, you enjoy steady, continuous heat without “altitude sickness” for your heater.
- 【Extended Runtime with 15L Large Capacity 】 The 15L large-capacity tank delivers triple the runtime of standard 5L units, supporting up to 4 days of continuous heating for extended stationary use. With a fuel consumption rate of just 0.034–0.092 Gal/h (compared to 0.074–0.145 Gal/h from many competitors), you get exceptional efficiency and fewer refills, making it ideal for long-term comfort in RVs, garages, workshops, or any off-grid space where reliable heat is needed around the clock.
- 【3 Convenient Control Methods】Take full command of your heater via the Smart APP (up to 32 ft/10m), the Remote Control (up to 98 ft/30m), or the built-in LCD panel. Plus, enjoy additional features like automatic start/stop and multiple timed settings for ultimate convenience, fuel savings, and peace of mind.
Similar products from other brands
Chosen for their similar specifications and price.
 This productHCALORY UNIT 2 |
 VEVOR XMZ-D2 |
 Sunster SH W8 |
 iHooToo SPL-ZC-001 |
|
|---|---|---|---|---|
| Price | $169.99 | $101.55 | $122.99 | $199.98 |
| Model | UNIT 2 | XMZ-D2 | SH W8 | SPL-ZC-001 |
| Popular brand | – | – | – | No |
| Heater type | Split | – | Split | – |
| Max heat output (kW) | 8.0 | 8.0 | 8.0 | 5.0 |
| Max heat output (BTU/h) (BTU/h) | – | 27,296 | 27,297 | – |
| Heating area (m²) | 27 | 25 | 20 | 20 |
| Heating area (sq ft) | 291 | 269 | 215 | 220 |
| Fuel tank capacity (L) | 15.0 | 10.0 | 10.0 | 10.0 |
| Fuel tank capacity (gal) | 4.0 | 2.6 | 2.6 | 2.6 |
| Fuel consumption min (L/h) | 0.12 | 0.16 | 0.26 | 0.15 |
| Fuel consumption max (L/h) | 0.35 | 0.62 | 0.46 | 0.53 |
| Fuel consumption max (gal/h) | 0.093 | 0.164 | 0.122 | 0.140 |
| Max runtime per tank (hours) | – | 16 | 40 | – |
| Heat levels (levels) | – | 10 | 10 | – |
| Auto start/stop | Yes | – | Yes | – |
| Thermostat mode | Yes | Yes | Yes | Yes |
| Thermostat min (℉) | – | 46 | 46 | – |
| Thermostat max (℉) | – | 97 | 97 | – |
| Thermostat min (℃) | – | 8 | 8 | – |
| Thermostat max (℃) | – | 36 | 36 | – |
| Timer | Yes | Yes | Yes | – |
| Remote control included | Yes | Yes | Yes | – |
| Remote range (ft) | 98 | 98 | 32 | – |
| App connectivity | – | Bluetooth | Wi-Fi and Bluetooth | – |
| DC input voltage | 12V/24V | 12V | 12V/24V | 12V |
| Running power draw (W) | – | 40 | – | – |
| Noise level (dB) | – | 70 | 35 | 45 |
| Housing material | – | – | Metal | Metal |
| Air duct diameter (mm) | – | 77 | 60 | – |
| Brushless motor | – | – | – | Yes |
| Weight (lbs) | 16.76 | 13.60 | – | – |
| Weight (kg) | 7.60 | 6.15 | – | – |
| Length (in.) | 15.71 | 14.80 | 14.96 | 14.88 |
| Length (mm) | 399 | 375 | 380 | 378 |
| Width (in.) | 5.59 | 5.50 | 5.51 | 5.93 |
| Width (mm) | 142 | 140 | 140 | 151 |
| Depth/Height (in.) | 6.97 | 6.90 | 6.69 | 6.97 |
| Depth/Height (mm) | 177 | 175 | 170 | 177 |
| Max operating altitude (ft) | 16,404 | 18,045 | 18,045 | – |
| Max operating altitude (m) (m) | 5,000 | 5,500 | 5,500 | – |
| Altitude adjustment | Automatic | Automatic | Automatic | – |
| Operating temp min (℃) | – | -40 | -40 | – |
| Operating temp min (℉) | – | -40 | -40 | – |
| CO alarm included | – | – | No | – |
| Overheat protection | – | 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 | 1 Year |
Data sources
Data for this product compiled from this source:
Specifications last updated Oct 20, 2026.