Skip to content

Best Low-Wattage & 12V Heaters for Caravans & Motorhomes

Keeping a caravan or motorhome warm without tripping the hook-up comes down to wattage. Here’s how to choose a low-wattage or 12V heater that heats the space without overloading a campsite pitch.

Know your power budget

Most UK hook-ups supply 10A (about 2,300W) or 16A (about 3,680W) — and that’s shared with your fridge, kettle and chargers. A fan heater at full blast eats most of it, so look for models with 500W, 750W and 1,000W settings you can dial down.

The main types

Fan heaters warm a space fast but can be thirsty; oil-filled radiators give a gentle background heat; ceramic heaters are compact and efficient; and low-watt tube heaters are ideal for keeping the chill (and damp) off a van in storage. 12V heaters run off the battery for off-grid use but output is modest — think demisting, not toasting.

Safety first

Choose heaters with tip-over and overheat cut-outs, always keep ventilation, and fit a carbon-monoxide alarm if you’re running anything gas. Never leave a heater unattended overnight in a sealed space.

Frost protection in storage

A low-wattage tube heater left on in a stored van keeps the interior above freezing and helps hold damp at bay — cheap insurance against frost damage.

Pair it with a dehumidifier

Warmth and moisture control go hand in hand: a heater plus a dehumidifier keeps the van both warm and dry, which is exactly what stops condensation and mould.

Match the heater’s wattage to your hook-up and you’ll stay warm all winter without a single tripped breaker.

Shop heating & power

Low-wattage heaters and the power kit to run them.

Previous article Christmas Gift Guide for Campers & Caravanners
Next article Best Caravan Awnings for UK Touring

Join the UK Camping Community & Stay Ahead of the Adventure

Enjoy expert camping tips, discover new gear, and be the first to know about exclusive deals—all delivered straight to your inbox. Sign up for our newsletter and join a community of outdoor enthusiasts eager to explore, learn, and share their passion for adventure. Subscribing is quick, easy, and you can opt out at any time!

Shop with Confidence at UK Camping and Leisure

As you explore our Help Guides & Blogs, don’t forget that we’re here to provide top-quality gear and exceptional service for all your outdoor needs. Whether you’re upgrading your camping kit or planning a new adventure, our extensive product range caters to both seasoned travelers and enthusiastic beginners. Check out the website menu below to browse our collections, discover special offers, and learn more about why so many customers trust us for their camping and leisure essentials!

Search Our Store

Looking for something specific? Use our search bar to quickly find the gear, accessories, or advice you need. Whether you’re after a particular product, a favorite brand, or helpful tips, let our search tool guide you straight to your next great find!

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare