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Marine and RV Diesel Heaters

Marine and RV Diesel Heaters – Stay Warm Anywhere

When you’re exploring New Zealand’s rugged outdoors or cruising offshore, comfort matters. At Action Outdoors Ltd, we supply premium marine and RV diesel heaters that keep your cabin, motorhome, or boat warm and cozy, no matter the season. Built with efficiency and reliability in mind, these heating systems are perfect for adventurers who don’t let cold weather limit their journeys.

Eberspächer Diesel Heaters – Proven Performance

Our range includes the world-renowned Eberspächer diesel heaters, trusted by motorhome owners and boat builders alike. These heaters quickly bring your interior to the desired temperature by drawing in air, heating it, and circulating it back inside. With precise temperature control, you can enjoy consistent warmth tailored to your comfort level.

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Eberspächer heaters are exceptionally economical, allowing for long operating times without draining your fuel. Even during extended trips, you can rely on steady heating that won’t compromise your efficiency.

Independent & Versatile Heating

One of the key benefits of marine and RV diesel heaters is their ability to work independently of the engine. This means your living space can be pre-heated before you set out, ensuring maximum comfort from the moment you step inside. Suitable for medium to large motorhomes, campervans, and boats, these systems are ideal for all-season travel.

Why Choose Action Outdoors?

  • Top Brands – We stock only reliable, high-quality diesel heating systems.
  • Expert Advice – Our team helps you select the right model for your vessel or vehicle.
  • Durable & Safe – Built to withstand demanding marine and RV environments.

Upgrade your travel experience with marine and RV diesel heaters that combine German engineering, economical operation, and lasting comfort.

Heating Options Comparison

Heating Type Best For Advantages Considerations Diesel Heaters Medium–large motorhomes, caravans & boats- Very efficient fuel use

- Works independently of the engine

- Long operating times

- Reliable in cold, damp conditions- Requires diesel supply

- Higher upfront costGas HeatersSmall to medium caravans & RVs- Lower purchase price

- Widely available fuel

- Simple operation- Requires gas bottles

- Shorter run times

- Needs ventilation & safety checks, Electric Heaters, Campsites with mains power- Affordable upfront

- Silent operation

- Zero exhaust emissions- Needs constant 230V power

- Not ideal off-grid

- Higher energy draw

Why Choose Diesel?

Marine and RV diesel heaters stand out for their balance of efficiency, independence, and reliability. Unlike electric heaters, they don’t rely on shore power, and unlike gas heaters, they can run for long hours with fewer refills. That makes them the perfect solution for year-round adventurers who want consistent, comfortable heating.


Find Your Perfect Diesel Heater Today

Don’t let cold weather cut your adventures short. Explore our full range of marine and RV diesel heaters at Action Outdoors and enjoy efficient, reliable warmth wherever you travel. With trusted brands like Eberspächer, competitive prices, and fast delivery, we make it easy to upgrade your comfort on the road or at sea. Order today and experience the difference.

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Original price $5,899.00
Original price $5,899.00 - Original price $5,899.00
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Wallas Diesel Heater 30 Viking Combi 12V For Boats Efficient Cabin And Hot Water Heating

Wallas
in stock

The Diesel Heater 30 Viking Combi 12V is built for serious boaters who want reliable warmth without sacrificing space or battery life. Designed sp...

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Original price $5,899.00
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Original price $5,899.00
Current price $5,865.00
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Wallas Spartan Air 12V Diesel Heater for Boats 4.5kW

Wallas

Introducing the Diesel Heater Spartan Air 12V — a high-performance marine heating solution engineered for comfort, efficiency, and reliability on...

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Original price $4,699.99
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Wallas 2.2Kw Diesel Heater 22GB 12V

Wallas
in stock

Wallas 2.2Kw Diesel Heater 22GB 12V is the robust off-grid heating solution designed for boats, camper vans, and trailers that demand steady warm...

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Original price $3,550.00
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Current price $2,699.99
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Motor Home Heater D2 Eberspacher Heater

Absolute Marine

Meet the Motor Home Heater D2 Eberspacher Heater from Absolute Marine, a compact diesel-fired solution designed to keep small to medium motorhomes...

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Original price $3,100.00
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Current price $2,699.99
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Original price $2,350.00
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Marine Water Heater with Heat Exchanger, 76 L

Kuuma

Kuuma Marine Water Heater with Heat Exchanger, 76 Litre (20 Gal) — a dependable, high-capacity hot-water solution designed for life at sea. Built ...

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Original price $2,350.00
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Current price $2,250.00
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Original price $1,750.00
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Current price $1,680.00
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Wallas Heater Installation Kit - Basic

Wallas

Wallas Heater Installation Kit - Basic (Product Code 3713-ADV) contains the essential components to get your Wallas up and running quickly and rel...

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Original price $1,750.00
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Original price $1,690.00
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Kuuma Water Heater - 42 Litre Front and Rear Mounts - In Store

Kuuma

The Kuuma Water Heater in a practical 42 Litre capacity is purpose-built for life at sea. With front and rear mounting options, this marine water ...

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Original price $1,690.00
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Current price $1,590.00
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Kuuma Water Heater 42 Litre Side Mounts

Kuuma

Meet the Kuuma Water Heater 42 Litre Side Mounts, a robust marine water heater designed to keep your boat’s galley and head comfortably warm. Buil...

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Original price $1,650.00
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Original price $1,350.00
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Kuuma Water Heater -23L Front and Rear Mounts

Kuuma
in stock

Experience dependable onboard comfort with the Kuuma Water Heater — a marine hot water system designed for life at sea. With a ~23-liter capacity ...

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Original price $1,350.00
Original price $1,350.00 - Original price $1,350.00
Original price $1,350.00
Current price $1,285.00
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Original price $273.00
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Current price $249.00
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Autoterm Comfort Control Panel With LED Display For Diesel Heaters Marine And RV Climate Control

Autoterm

Autoterm Comfort Control Panel with LED Display — Precision Climate Control for Diesel Heaters The Autoterm Comfort Control Panel with LED display...

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Original price $273.00
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Original price $273.00
Current price $249.00
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