You've got a campervan or motorhome with an LPG heater already fitted, and you want to know one thing: switch it on tonight, or leave it off? That's what this article is for — deciding whether to run a heater that's already installed and represented as compliant for your vehicle. It doesn't inspect, certify, or approve your installation. It only covers routine, stationary use.

This isn't a guide to installing, modifying, or repairing anything behind the panel. It won't teach you to design ventilation, diagnose a fault, test for leaks, fit an alarm, or fight a fire — that's specialist work. It also doesn't cover driving with the heater running, ferry carriage, refuelling, storage, or country-specific gas rules. What follows is a way to decide, calmly, whether routine use should continue.

Use, stop, or escalate?

Use only when:

  • You know the exact make and model of the heater fitted in this vehicle.
  • You've got its actual current manual in hand, confirmed for this model rather than remembered from something similar.
  • You know what the vehicle maker, converter, or rental provider say about this installation.
  • You can confirm every operating condition those documents require, including any ventilation condition.

Stop routine use when:

  • A warning in the manual applies to your situation.
  • You suspect a gas leak.
  • You see smoke, fire, or damage.
  • An alarm goes off and you don't know why.
  • A fault keeps recurring.
  • Anything about the heater or its behaviour feels unfamiliar enough that you can't confirm safe operation.

Escalate:

  • Appliance behaviour or a fault that won't quit? Consult the exact manual and its manufacturer-authorised service route.
  • Not sure about the installation itself? That's a question for the vehicle maker, converter, or owner.
  • Contract or unfamiliar-vehicle questions belong with the rental provider.
  • Nothing seems actively dangerous, but you're still not sure? Call roadside assistance or a qualified gas service.
  • A threat to life, health, property, or the environment? Contact current national emergency services.

This is a cautious method for deciding what to do next, not a technical standard or a rule that applies the same way to every manufacturer. Current local emergency directions and the exact appliance instructions always take precedence over anything written here.

The documents set the boundary

The reason this article can't just say "yes, use it" or "no, don't" is that the answer lives in paperwork you haven't pulled out yet. Routine use is governed by the exact appliance manual and the instructions for your specific vehicle. On top of that, several parties may each add limits specific to that installation or contract — the vehicle maker, the converter who fitted the system, the previous owner, or the rental company.

The sequence itself is simple, even if gathering the paperwork takes some effort:

  1. Identify the exact appliance by brand and model.
  2. Get its current manual.
  3. Check whatever instructions apply from the vehicle maker, converter, owner, or rental provider for your installation.
  4. Only carry out the routine actions and operating conditions those documents actually describe.

A heater that behaves one way in a friend's motorhome may behave differently in yours, even if the control panel looks the same.

The verified Alde example

It helps to look at one real manual instead of talking in the abstract. The Alde Compact 3030/3030 Plus is the only heater family this article can speak to with model-specific detail, because its current operating instructions were reviewed for this piece. None of this transfers to a Truma heater, a different Alde model, or any other appliance. If your heater isn't this exact model, treat the following as illustration only and go straight to your own manual.

Ventilation during routine use

The Compact 3030/3030 Plus manual warns against running the heater on LPG without enough ventilation. It requires the air inlet and exhaust outlet to remain unobstructed, and links a shortage of air at the burner to the possibility of carbon monoxide building up. It also carries a warning about snow and ice — relevant for winter camping, where a blocked outside vent is an obvious risk.

None of that is design guidance. It doesn't tell you how big a vent should be, where to put one, how to clear it, or how to confirm your installation meets the requirement — that's a job for a competent installer or service partner, not this guide. What it does tell you is that the air inlet and exhaust outlet must remain unobstructed for the verified Alde models. If you can't confirm that condition from the exact manual, that's a reason to stop routine use and follow the exact manual or seek qualified help rather than guess.

When leakage is suspected

For the verified Alde models, the manual is specific about one thing: when leakage is suspected, close the main LPG tap. That's the whole instruction. It isn't a full response sequence, and this piece won't turn it into one by explaining how to detect, locate, or test for a leak — that's not something a general guide can responsibly teach. Treat this single instruction as exactly what it is: one step from one manufacturer's manual, followed by whatever the exact emergency or service route requires next.

Persistent faults stay model-specific

The Alde control panel displays specific fault states, and the manual directs certain persistent faults to an Alde Service Partner rather than to home troubleshooting. What a particular fault code means, and what resetting it involves, is detailed in that manual and is not transferable to another heater. If your control panel shows something similar but you're not using an Alde Compact 3030/3030 Plus, this section tells you nothing useful about your fault — go to your own manual instead.

An unfamiliar heater on tour

Picture two travellers pulling into a stopover on the same evening. One downloaded the manual for the exact heater in their van before the trip, plus a note from the rental company about what's covered and what isn't. Before switching the heater on, they check the operating conditions the manual describes and go ahead with reasonable confidence.

The other knows only that they rented "a mid-size motorhome," and remembers a heater from a previous trip that looked similar. That memory doesn't tell them what's actually fitted this time — a rental category name never guarantees one particular layout or appliance. On a cold evening, the sensible move isn't to assume the old routine applies. It's to pause, find the actual model plate or manual, and treat the heater as unconfirmed until the paperwork catches up.

Before the first use

If you're renting, sort three things before you switch the heater on:

  • the exact model
  • its current manual
  • the vehicle-maker, converter, or provider instructions that apply to this unit

Don't assume the rental category tells you which heater or controls you've got. Ask, or check the plate on the unit itself.

Owned a similar heater in another van before? That familiarity is worth less than it feels like. A warning, a reset sequence, or a service contact that applied to your old heater doesn't automatically apply to a new one, even from the same brand. Confirm the model before you rely on habit.

Overnight planning for the household

Travelling with children or an animal doesn't change the heater question. This isn't the place for child-specific or animal-specific safety rules around LPG appliances — that evidence isn't available here, and it shouldn't be invented. What matters is that whoever's responsible for the trip has the instructions in hand and a clear way to stop routine use and get help if something feels wrong, while still covering the ordinary supervision and overnight needs of everyone and everything travelling with you. Fold those needs into your planning — the documentation step still comes first.

Choose the right help

Different problems belong with different people, and it's worth keeping that straight before you're standing outside the van at 9pm trying to remember who to call.

  • Appliance behaviour and persistent faults — go to the exact manual and its manufacturer-authorised service route.
  • Installation questions — go to the vehicle maker, converter, or owner.
  • Contract or unfamiliar-vehicle questions — contact your rental provider.
  • Uncertain but not urgent — use roadside assistance or qualified gas service.
  • Immediate danger — contact current national emergency services.

One contact point rarely covers all five. A rental provider can tell you about your contract, but they're not the manufacturer's service route for a fault code, and a roadside assistance line isn't the right first call if there's an active threat to life or property.

Emergency scope in Finland and Sweden

If you're touring in Finland or Sweden, 112 is the single emergency number to use in both countries. In Finland, outside Åland, the official guidance is to call when life, health, property, or the environment is known or suspected to be threatened — that's the threshold this article can confirm. For Sweden, only the number itself is confirmed here; Sweden-specific LPG guidance is not provided, so don't assume a particular procedure applies there beyond calling 112 for a genuine emergency. Either way, current local emergency guidance takes precedence over this article. And 112 is for a genuine emergency — not routine troubleshooting or a fault code on its own.

Make the final check

Before you rely on the heater tonight, work through this list:

  • Identify the exact model of the heater fitted to this vehicle.
  • Get its current manual.
  • Get the applicable instructions from the vehicle maker, converter, owner, or rental provider for this installation.
  • Confirm that the stationary use you're planning, and the operating conditions it needs, are expressly covered in those documents.
  • Note the right service contact and the right emergency contact for where you are.

If any of that's missing, don't treat this article as a substitute for the document you don't have. Getting it is tonight's actual task, before you switch the heater on unless someone qualified confirms it for you first.

We review the manufacturer and emergency sources behind this article at least every six months, before publication or seasonal promotion, and after any relevant manufacturer or authority change. Even so, check that you're working from the current version before you rely on it.

Where to go next

This sits in Vehicles and equipment, next to the vehicle’s other onboard system and the departure check that precedes both. For where you are likely to be using it, see what campsite, aire and Stellplatz labels actually tell you. The wider Road touring section covers planning, routes, rules and overnighting.

Your next step: find the manufacturer instructions for the exact appliance in your vehicle and confirm its ventilation requirement before the next cold night. Guidance here does not replace what the maker of your appliance says.