Diesel heaters and 12V truck air conditioners

Heat and cool your truck, van, RV or boat with the engine off. 12V and 24V units, shipped to the US, Canada and Europe.

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Diesel Heaters
Karlesk K2AL2209-24 2.5 kW 24V diesel air heater, aluminum housing

Diesel Heaters

Portable Diesel Heaters
Karlesk RLK5AL007-12RE portable diesel heater with built-in battery and accessory kit

Portable Diesel Heaters

Truck Air Conditioners
Karlesk Y262-S 24V rooftop parking air conditioner, 2600 W, and truck cab compatibility chart

Truck Air Conditioners

Rooftop Air Conditioners
GREE GRH120DA rooftop RV air conditioner, outdoor unit

Rooftop Air Conditioners

RV & Camper Air Conditioners
GREE GRH120DA rooftop RV air conditioner, outdoor unit

RV & Camper Air Conditioners

12V Air Conditioners
Karlesk Y262-S 12V rooftop parking air conditioner, 2600 W

12V Air Conditioners

Diesel heaters

Parking air conditioners

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Heat with the engine off

Diesel air heaters from 2.5 to 8 kW burn as little as 0.2 L of fuel per hour.

Cool without idling

12V and 24V parking air conditioners run from the batteries during rest stops.

Shipping to 41 countries

Delivery to the US, Canada, Europe, the UK, Australia and New Zealand.

Help choosing a model

Send us your vehicle details and we will recommend the right unit.

Frequently asked questions

What size diesel heater do I need?

A 2.5 kW heater suits a car, pickup cab, small van or boat cabin. Choose 5 kW for full-size vans, RVs, truck sleeper cabs and small workshops, and the 8 kW portable heater for garages, large tents and job sites.

12V or 24V — which do I need?

Match the unit to your vehicle's electrical system. Cars, vans, RVs and most North American trucks use 12V. Many European and Asian trucks, buses and heavy machinery use 24V.

Can a parking air conditioner run from my battery all night?

It depends on the battery bank. Parking air conditioners draw roughly 12–55 A on 12V, depending on the model and mode. For overnight cooling use a lithium house battery bank so the starter battery is never drained.

Where do you ship?

We ship to the United States, Canada, the European Union, the United Kingdom, Norway, Switzerland, Australia, New Zealand and a number of Asian countries. Shipping costs are shown at checkout.

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