Electric heating for an RV, camper or caravan

Why a small ceramic unit suits a camper

The interior of an RV, camper or caravan is small and well enclosed, which is exactly the kind of space a compact ceramic heater performs best in — the same enclosed-space advantage covered in small room heater. It warms the interior within about a minute, produces no flame, and adds no moisture to the air, unlike gas heating, which generates water vapour as a byproduct of combustion.

Watch your hook-up amp limit

Campsite pitches are commonly limited to 6, 10 or 16 amps. Add up everything running at once — kettle, fridge, phone charger, heater — before you trip the post and lose power to everything. A lower heater setting is often the difference between a warm van and a dark one for the rest of the evening.

Typical amp budgets on a pitch

Safety in a small space

• Stand the heater on a flat, hard, stable surface — never on bedding or soft furnishings.
• Keep the airflow clear of curtains, sleeping bags and stored items.
• Use the built-in timer rather than running the heater overnight in an occupied, enclosed space.
• Keep a working carbon monoxide alarm on board if you also use any gas appliances.

Managing condensation

Electric heating does not add moisture directly, but warming the air raises the amount of water vapour it can hold before it condenses on cold surfaces like windows. Brief daily ventilation — cracking a window or roof vent for a few minutes — helps the van stay dry regardless of which heating method you use.

Setting up electric heating on hook-up

A short checklist keeps things simple and avoids tripping the site's supply: check the pitch rating, total up what else is running, plug straight into the hook-up socket, position the heater on a stable surface clear of fabric, and set a timer rather than running it continuously overnight.

Off-grid and battery power realities

An 800W heater is designed for mains hook-up power, not for running off a leisure battery and inverter — the continuous draw would drain even a large battery bank within an hour or two. Off-grid, most vans rely on gas heating or a dedicated low-power heating system instead, keeping the plug-in ceramic heater for pitches with mains hook-up.

Night-time settings for a small, enclosed van

Insulation reality check for older vans

A van or caravan with single-glazed windows and thin, older insulation loses heat much faster than a newer, well-insulated model of the same size. In that situation, expect shorter retained warmth after the heater switches off, and budget for slightly longer or more frequent timed sessions rather than assuming the heater is underperforming.

Thermal curtains or window covers over cab windows, and a draught excluder at the door, both help an older van hold onto the warmth a compact heater produces, so the timer-based routine stretches further overnight.