Winter in a motorhome: heating, water, snow chains and parking
A motorhome can be comfortable below zero if heat, moisture, water and gas are planned for, and if the tyre rules of each country are known in advance.
By CampingSpirit Editors · September 14, 2026 · 4 min read
Winter turns a motorhome from a summer machine into a small, heated house that has to cope with ice, damp and short days. Many owners find the season rewarding: ski resorts, quiet lakes and empty campsites, and a bed that is warm while the world outside is not. The effort lies in preparation, because most winter problems, from frozen pipes to empty gas bottles, are preventable.
This article covers the five areas that decide whether a trip works: insulation and moisture, heating, water and gas, legal equipment on the road, and where to park. It ends with what to do when the trip is over.
Insulation and condensation
A warm interior meets a cold shell, and the moisture of breathing, cooking and wet clothes condenses on the coldest surfaces, usually windows, cold bridges and the cabin roof. The answer is not to seal the vehicle but to manage moisture: ventilate briefly but regularly, keep a small gap open at roof lights, use insulating screens on the cab windows and avoid drying clothes inside. A hygrometer showing humidity above roughly 60 percent is a useful warning. Cushions and mattresses pressed against outside walls can get damp, so air them and lift them from time to time.
Heating
The cab is usually the weakest point, since the windscreen and side windows lose heat quickly. Thermal screens fitted outside or inside, a curtain across the cab and an insulating mat on the floor all help. In snow, clear the flue and the air intake of the heater, and the vents of the fridge, because a blocked exhaust is both a performance and a safety problem. Park so that the heater outlet is not buried in a drift, and check it again after heavy snowfall during the night.
Most motorhomes heat with a gas, diesel or electric system, or a mix. Gas heaters are simple and common but burn through bottles quickly in freezing weather. Diesel heaters use fuel from the vehicle’s tank, are efficient and do not depend on bottles. An electric fan heater on a campsite hook-up saves gas and diesel, but site supply is often limited to a few amps, so check the amperage before running a heater alongside a kettle. Never use an unvented gas oven or a camp stove for heating, because of carbon monoxide; a working carbon monoxide detector is not optional in winter.
Water and gas
Water freezes first in pipes outside the heated zone and in a tank mounted under the floor. Check whether the tank and pipes sit inside the insulated, heated area, drain them completely when the vehicle is left unheated, and use a heated hose or a short one at campsites. Gas needs the same attention: propane keeps vaporising at very low temperatures, down to about −42 °C, whereas butane stops vaporising at around −0.5 °C and becomes useless in the cold. A refillable propane system, with the right adapters for each country, is therefore the better all-season choice, and a spare filled bottle costs little compared with a night without heat.
Tyres, chains and national rules
Winter equipment rules differ by country and change, so check before departure. In Austria, for vehicles up to 3.5 tonnes, winter tyres on all four wheels are required whenever there is snow, slush or ice between 1 November and 15 April, with at least 4 mm tread on radial tyres, and chains on summer tyres are allowed only where the road is continually or almost always under snow or ice; the basic fine is €35. In France the Loi Montagne applies from 1 November to 31 March in signed communes: either 3PMSF winter tyres or removable devices, such as chains or textile snow socks, for at least two drive wheels, and tyres marked only M+S no longer qualify on their own (chains or socks must then be carried). The fine is €135.
In Italy the obligation to carry chains or fit winter tyres runs nationally from 15 November to 15 April on roads with signs, with a tolerance to fit from 15 October to 15 May, and local authorities can change the dates. Germany asks for tyres with the alpine symbol in wintry conditions, with fines of €60 to €120 and one point. Over 3.5 tonnes, the rules are stricter in most countries. Chains must fit your tyre size, so test-fit them in a dry driveway before you need them.
Parking and campsites
Ski resorts often have large car parks, but overnight parking is regulated and sometimes forbidden; resort parking for motorhomes is more reliably found at campsites or designated areas with hook-up. Many mountain campsites stay open in winter, but others close from November to the start of the season, and heating, sanitary blocks and water supply can be reduced in frost, so confirm opening dates and facilities directly. Choose a pitch with sun in the morning, cleared of snow, and keep the entrance and the service point accessible for plough and gritting vehicles. Check the road status, and carry a shovel, a mat for traction and warm clothing in case of delay.
After the trip: salt and storage
Road salt is the winter’s lasting damage. Rinse the underbody, wheel arches, brakes and the rear of the vehicle with fresh water as soon as possible after a salted road, and check the underbody for stone chips and bare metal that corrosion will start from. Dry the interior, empty and open the cupboards, and leave the fridge door ajar. If the vehicle is stored, charge the batteries and keep it ventilated rather than shut tight.
