Nomad Gear Finder
KOZAK Planar 4D-12-HA-Portable
AUTOTERM Planar 4D-12V Portable Diesel Air Heater 4kW with PU-5 Controller, Military Green Compact Parking Heater for RV Camper Van Boat Tent & Off-Grid Applications, Includes Reflective Safety Vest
A portable all-in-one Autoterm Planar heater that modulates from 1.0 to 4.0 kW (13600 BTU/h) with 168 m³/h of airflow, burning 0.12 to 0.51 L/h on 12V with a PU-5 controller. It works down to -45 ℃ but is rated only to 8202 ft (2500 m), lower than most. Priced far above budget 8 kW units, it suits buyers wanting premium-brand portable heat at modest elevations.
$1,959.99 as of – Details
Only 5 left in stock - order soon on Amazon
- Max heat output
- 4.0 kW
- Min heat output
- 1.0 kW
- Max heat output (BTU/h)
- 13,600 BTU/h
- Air flow
- 168 m³/h
- Brand
- KOZAK
Rankings in the diesel heaters Category
How does this product compare with others in Nomad Gear Finder's diesel heaters category?
- Max heat output 4.0 kW Lower than 79% of 72 others
- Max heat output (BTU/h) 13,600 BTU/h Lower than 77% of 36 others
- Running power draw 57 W Higher than 83% of 18 others
- Max operating altitude 8,202 ft Lower than 91% of 45 others
- Max operating altitude (m) 2,500 m Lower than 89% of 46 others
- Operating temp min -49 ℉ -45 ℃ Lower than 90% of 31 others
Compare this product with close matches Compare with all diesel heaters
Specifications
These details are subject to change and may not be current. Please check Amazon or manufacturer web site to confirm before purchase; see our About page for more information.
- Model
- Planar 4D-12-HA-Portable
- User manual
- Link
- Popular brand
- No
Core specs
- Heater type
- All-in-one portable
- Max heat output
- 4.0 kW
- Min heat output
- 1.0 kW
- Max heat output (BTU/h)
- 13,600 BTU/h
- Air flow
- 168 m³/h
Fuel
- Fuel consumption min
- 0.12 L/h
- Fuel consumption max
- 0.135 gal/h 0.51 L/h
Power
- DC input voltage
- 12V
- Running power draw
- 57 W
Altitude
- Max operating altitude
- 8,202 ft
- Max operating altitude (m)
- 2,500 m
Operating Temp Range
- Operating temp min
- -49 ℉ -45 ℃
Safety
- Overheat protection
- Yes
Features
Details from the KOZAK Planar 4D-12-HA-Portable Amazon listing:
- PORTABLE DIESEL AIR HEATER FOR MOBILE APPLICATIONS — AUTOTERM Planar 4D-12V is a self-contained portable diesel air heater designed for campers, vans, motorhomes, boats, tents, and other mobile and off-grid applications.
- 1.0-4.0KW HEATING OUTPUT — Provides adjustable heating output from 1.0kW to 4.0kW / 3,400-13,600 BTU with an airflow rate of 70-168 m³/h and fuel consumption of approximately 0.12-0.51 L/h.
- COMPACT MILITARY GREEN PORTABLE DESIGN — The rugged portable enclosure features a Military Green finish and makes transportation and setup convenient for camping, overlanding, winter fishing, and other mobile heating applications.
- PU-5 CONTROLLER INCLUDED — Includes PU-5 controller for convenient heater operation and adjustment. The portable heater is suitable for applications including campers, vans, tents, motorhomes, ice-fishing huts, and boats up to 30 ft.
- REFLECTIVE SAFETY VEST INCLUDED Package includes a reflective safety vest for improved visibility during roadside stops, outdoor activities, camping setup, and low-light conditions.
Similar products from other brands
Chosen for their similar specs and price:
 This productKOZAK Planar 4D-12-HA-Portable |
 Longroadaccess Air 4D |
 Webasto Air Top EVO 40 |
 Eberspächer Airtronic M3 D4L |
|
|---|---|---|---|---|
| Price | $1,959.99 | $1,299.99 | $1,945.95 | $1,675.00 |
| Model | Planar 4D-12-HA-Portable | Air 4D | Air Top EVO 40 | Airtronic M3 D4L |
| Popular brand | No | No | Yes | Yes |
| Heater type | All-in-one portable | Split | Split | Split |
| Max heat output kW | 4.0 | 4.0 | 4.0 | 4.0 |
| Min heat output kW | 1.0 | 1.0 | 1.5 | 1.1 |
| Max heat output (BTU/h) BTU/h | 13,600 | 13,648 | 13,650 | 13,648 |
| Air flow m³/h | 168 | 168 | 140 | – |
| Fuel consumption min L/h | 0.12 | 0.12 | 0.18 | 0.12 |
| Fuel consumption max L/h | 0.51 | 0.51 | 0.49 | 0.49 |
| Fuel consumption max gal/h | 0.135 | 0.136 | 0.130 | 0.129 |
| Thermostat mode | – | Yes | – | – |
| DC input voltage | 12V | 12V | 12V / 24V | 12V |
| Startup power draw W | – | – | – | 105 |
| Running power draw W | 57 | 57 | 55 | 37 |
| Brushless motor | – | – | – | Yes |
| IP rating | – | – | – | IP5K4K |
| Weight lbs | – | 11.90 | 13.00 | 9.92 |
| Weight kg | – | 5.40 | 5.90 | 4.50 |
| Length in. | – | 15.83 | 16.70 | 14.80 |
| Length mm | – | 402 | 423 | 376 |
| Width in. | – | 6.18 | 5.80 | 5.51 |
| Width mm | – | 157 | 148 | 140 |
| Depth/Height in. | – | 7.40 | 6.40 | 5.91 |
| Depth/Height mm | – | 188 | 162 | 150 |
| Max operating altitude ft | 8,202 | 8,202 | 18,044 | 18,045 |
| Max operating altitude (m) m | 2,500 | 2,500 | 5,500 | 5,500 |
| Altitude adjustment | – | – | Automatic | Automatic |
| Operating temp min ℃ | -45 | -45 | -40 | -40 |
| Operating temp min ℉ | -49 | -49 | -40 | -40 |
| Overheat protection | Yes | Yes | – | Yes |
| Low-voltage protection | – | Yes | – | Yes |
| Warranty | – | 2 Years | – | – |
| ECE R122 approved | – | Yes | Yes | Yes |
| ECE R10 (E-mark) EMC | – | Yes | Yes | Yes |
Data sources
Data for this product compiled from these sources:
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.
Specifications last updated Nov 5, 2026.