Winter travel has a lot going for it — quieter parks, cheaper sites and crisp, clear days. The only catch is the cold once the sun drops. The good news is that a caravan is easy to keep warm if you tackle it in the right order: stop the heat escaping, then choose the right way to put heat back in. Here’s how to do both.

Why does a caravan get so cold at night?

A caravan cools down faster than a house because it has thinner walls, more windows for its size, and a large roof — all of which shed heat quickly once the outside temperature drops. The warmth you built up during the day disappears within an hour or two of sunset, which is why the van can feel toasty at dinner and chilly by bedtime. Knowing where the heat goes — mostly through glass and gaps — tells you where to focus.

What’s the best way to heat a caravan?

The best heater depends on whether you have mains power. On a powered site, a reverse-cycle air-conditioner is the most convenient option because it both heats and cools and runs off the site’s power. Away from mains, a gas or diesel heater is the better choice because it produces plenty of heat while drawing very little electricity. Here’s how the common options compare.

How do you stop heat escaping?

The cheapest warmth is the heat you keep. Windows are the biggest culprit, so start there:

• Cover the windows — thermal curtains, reflective window covers or even fitted blinds make a noticeable difference overnight.
• Seal the gaps — check door and hatch seals, and use a draught stopper at the door if needed.
• Use the floor — a rug over hard flooring cuts the cold underfoot and helps the space feel warmer.
• Manage the roof hatches — keep them closed at night, but crack one slightly for ventilation (more on that below).

How do you keep the van warm without flattening the battery?

If you’re relying on battery power rather than mains, match the heater to your power setup. A gas or diesel heater is the sensible choice off mains because it only needs a small 12V draw to run the fan. A reverse-cycle air-conditioner or a plug-in electric heater, by contrast, needs either mains power or a substantial battery-and-inverter system to run for any length of time. Plan your heating around your power, not the other way around, and you’ll avoid a flat battery on a cold morning.

How do you stay warm in bed?

Heating the air is only half the job — the bed matters just as much. A warmer underlay, a higher-tog quilt and a throw at the foot of the bed will keep you comfortable even if you turn the heater down overnight (which also reduces condensation). Layering bedding the way you’d layer clothing is the simplest upgrade you can make for a winter trip.

Frequently Asked Questions

Is reverse-cycle air-conditioning good for heating a caravan?

Yes. A reverse-cycle system heats as well as it cools, so it’s an efficient, convenient way to warm the van when you’re on a powered site.

Will running a heater drain my caravan battery?

A gas or diesel heater uses very little electricity — just a 12V fan — so it’s fine off mains. A reverse-cycle air-conditioner or electric heater needs mains power or a large battery-and-inverter setup.

How do I stop condensation when I heat the van?

Keep a little ventilation going — crack a roof hatch or window slightly. A dry heat source (like a diesel heater) and wiping windows down in the morning also help.

What temperature should I set overnight?

A lower overnight setting plus warmer bedding is more comfortable and produces less condensation than running the heater hard all night.

Do I really need to cover the windows?

Glass is where most of the heat escapes, so window covers or thermal curtains are one of the most effective things you can do.