Best portable diesel air heaters for vans and RVs
Researched by Deal.ai's shopping agent across stores on November 5, 2026. Prices below are today's.
Top pick: Jacgood 5KW all-in-one — the safest first buy for a van or small RV. It's a complete kit (tank, pump, controller in one box), 12V, and it has the strongest review record of the budget units here, so you're not gambling on an unknown listing.
Who the others suit:
- VEVOR 8KW with remote and LCD — more heat for a bigger rig, and a brand you can get support from.
- Gewna 8KW multi-voltage — if you want to run it off shore power as well as 12V/24V.
- LF Bros 5KW — a step up in build quality for full-time living.
- AUTOTERM (Planar) 2D — the quiet, proven choice if you want a proper branded unit and can spend more.
- Cheap 8KW kits — fine as spares or for a shed, but expect to replace the pump or controller.
Whatever you pick, fit a CO alarm and route the exhaust away from windows and doors.
