Hcalory HBU1S 5kW Diesel Heater

Last updated: October 30, 2026

Hcalory HBU1S 5kW Diesel Heater
2.7/5#33 of 36 in split diesel heaters
2.7

A cheap app-controlled split heater for DIY van and RV installs, though Hcalory publishes few specs for this 5 kW version.

  • 5 kWHeat output
  • None publishedType approval
  • 1 yearWarranty
Check price at Amazon$99.99

Price checked October 30, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • App, panel and timers let you warm the van before you get in
  • Holds a set temperature by starting and stopping on its own
  • Runs on 12 V or 24 V systems
  • Large 10 L tank means fewer refills
Cons
  • No published fuel burn for the 5 kW version, so its rating can’t be checked
  • High altitude mode has to be switched on by hand
  • No published power draw or noise figures
  • Only a one-year warranty

The Hcalory HBU1S family

Every Hcalory HBU1S model we rank, smallest first. Ratings compare each against its own type.

ModelHeat outputRatingPrice
Hcalory HBU1S 5kW Diesel Heater (this one)5 kW2.7/5$99.99
Hcalory HBU1S 8kW Split Heater8 kW claimed (about 3.5 kW from its fuel burn)3.2/5$99.99

How it scores

The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.

Specifications

Model numberHBU1S
Heating
Heat output (maker)5 kW
Fuel tank10 L
BuildSplit (installed)
Power
Supply12V/24V
Controls and safety
ThermostatYes
Automatic altitudeNo
AppBluetooth
TimerYes
Type approvalNone published
Build
Warranty1 year
Released2025-08

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