The $200 vs $2,000 Question
The van life community has strong opinions about diesel heaters. At one end, the Webasto and Espar units — German engineering, 10-year lifespan, $1,500-2,500 AUD installed. At the other, the Chinese units sold under names like Vevor, Hcalory, and generic "diesel air heater" — $150-250 AUD delivered from Amazon or eBay.
The question is whether the cheap units are worth it, or whether they are a false economy that fails at the worst possible moment.
We installed a Vevor 8kW diesel heater in a 2018 HiAce in June 2024 and ran it through six months of varying conditions. Here is what we found.
Installation
The installation kit includes everything you need: heater unit, fuel tank, fuel pump, ducting, mounting hardware, and the controller. Documentation is poor — we used a combination of the included instructions and YouTube videos to get it right.
Critical installation notes:
- Mount the heater under the van or in the engine bay area, not inside — it produces combustion gases
- The fuel pickup tube must sit at the bottom of the tank and not kink
- Route the exhaust pipe well away from any plastic and seal all penetrations properly
- Ground the unit directly to the chassis with a dedicated earth cable — do not use existing vehicle grounds
Total installation time was about 4 hours. We had an auto electrician check the wiring before first use — worth paying for the peace of mind.
Performance in Australian Conditions
We tested across the following conditions:
- Queensland winter nights (8-12°C) — the heater handled this easily on the lowest setting
- NSW alpine nights (-2°C to 4°C) — performed well, brought the van from ambient to 20°C in under 15 minutes
- Tasmanian coastal winter (3-8°C, high humidity) — worked well but required condensation management
Fuel consumption: approximately 0.2-0.4 litres per hour on mid setting. At current diesel prices (~$2.10/litre AUD) that is $0.42-$0.84 per hour to run — very economical compared to gas alternatives.
Reliability Over 6 Months
The heater required two interventions over our test period:
- Month 2: Failed to start after a week of not being used. The glow plug had carbon deposits. Cleaned it — 20-minute fix, no cost.
- Month 5: Fuel pump failed. Replacement pump from the same supplier: $18 AUD delivered in 3 days. 30-minute repair.
Neither failure was catastrophic. Both were foreseeable with basic maintenance. We now run the heater for 30 minutes every two weeks even in summer, and do a glow plug clean every 3 months.
Comparison to Webasto
We have friends running Webastos and Espars in their builds. The honest differences:
- Noise: The Chinese unit is slightly louder on startup, then comparable at running speed
- Reliability: Webasto is genuinely more reliable with proper servicing, but our experience suggests the Chinese units are not as unreliable as their reputation suggests — if you maintain them
- Parts: Chinese unit parts are extremely cheap and available. Webasto parts are expensive and often dealer-only
- Controller: The LCD controllers on Chinese units are functional but cheaper-feeling than Webasto's interface
Verdict: 4/5
For Australian van life, a well-maintained Chinese diesel heater is a genuine option at this price point. The money saved compared to a Webasto buys a lot of replacement parts and still comes out ahead.
However: if you are planning extended remote travel where failure means being stranded in dangerous cold (think Tasmania in winter or NSW alpine country), the peace of mind of a Webasto or Espar is worth the premium. For east coast van life where you are rarely more than 50km from a town — the cheap unit is fine.
Our recommendation: Buy the cheap unit, maintain it properly, carry a spare fuel pump and glow plug, and put the $1,500 you saved toward more adventures.