
Whether you’re embarking on a long-term vanlife adventure or creating a weekend getaway, this guide outlines the essential systems you need to consider and how to detail each one.
Choosing the Right Van
Key Considerations:
Size & Layout:
- Long Wheelbase (LWB): Ideal for extra storage and a distinct living area. Great for full-time vanlifers or digital nomads.
- Short Wheelbase (SWB): Favoured by builders who want better manoeuvrability in urban settings.
Payload Capacity & Engine Performance:
Ensure the van can handle the weight of your build. Check the payload capacity and opt for models with good fuel efficiency, like the Ford Transit EcoBlue.
Van Models:
Popular and well-supported models:
- Mercedes Sprinter – Known for its durability, high-tech features, and strong resale value. It offers rear-wheel drive and all-wheel drive options, making it a solid choice for varied terrain.
- Ford Transit – A versatile and widely available van with front-wheel, rear-wheel, and all-wheel drive options. It’s praised for its comfortable driving experience and affordability.
- Fiat Ducato – Favoured for its efficient front-wheel-drive layout, maximising interior space. It’s a popular base for motorhomes due to its lightweight design and fuel efficiency.
Join forums like:
- Sprinter Source for Mercedes
- Transit Forum
- Vanlife Reddit
Interior Height:
- Measuring before you build is crucial to ensure your setup maximises comfort and efficiency. High-roof models like the Ford Transit High Roof, Mercedes Sprinter Super High Roof, and Fiat Ducato H3 provide excellent standing space, while pop-top conversions offer flexible headroom without compromising aerodynamics.
- Guide to Van Roof Heights
- Eco Tip: Opt for lightweight insulation materials to maintain warmth without adding unnecessary weight to your build.
- Pro Tip: Use CAD software or van layout planners to visualise your interior design before installation.
Build Tip:
Start with a 3D layout tool like SketchUp or VanSpace 3D to design your layout before cutting or drilling.
Pro Tip:
Get a pre-purchase mechanical inspection and consider ex-rental or fleet vans, often well-maintained with detailed service histories.
Eco Tip:
Go for newer vans meeting Euro 6 or ULEZ-compliant standards.
Euro 6 and ULEZ-compliant vans help reduce emissions and avoid extra charges in clean air zones. The Ford E-Transit is a great electric option, offering zero tailpipe emissions and lower running costs.
Euro 6 Emissions Guide
ULEZ-Compliant Vans
Ford E-Transit & Clean Air Zones
Eco Tip: Electric vans like the E-Transit not only cut emissions but also qualify for government incentives in some regions.
Pro Tip: If you’re transitioning to an EV, check the charging infrastructure along your planned routes to ensure smooth travel.
Gas System (Cooking & Heating)
LPG System Options:
- Portable Bottles: Calor Gas and Campingaz are flexible, easy to replace.
- Fixed Tanks: Great for long-term travel, check out Gaslow Refillable Cylinders.
Essentials:
- Regulators & Hoses: Use approved fittings.
- CO/Gas Detectors: Install near floor level and sleeping areas.
- Install a drop-out vent in the floor near the gas storage area.
Build Tip:
Use PTFE gas thread tape only where rated for gas, and pressure-test the system before first use.
Pro Tip:
Get your LPG setup certified by a Gas Safe engineer (UK directory) to meet insurance and campsite requirements.
Eco Tip:
Use a diesel heater (tapping into your fuel tank) for lower emissions and easier refuelling in remote areas.
Water System (Fresh & Waste Water)
Fresh Water Options:
- Underslung tanks (20–100L): Save interior space.
- Portable jerry cans: Easy to refill and store.
Plumbing Essentials:
- 12V Pumps: Quiet and efficient.
- Foot pumps: Simple and power-free.
- Inline Filters: Vital if collecting water from lakes, taps, or rivers.
Grey Water Management:
- Internal tanks: Use external taps for clean drainage.
- Drain valves: Allow quick, sanitary disposal at waste stations.
Build Tip:
Use push-fit plumbing connectors like John Guest fittings for easy maintenance and leak resistance.
Pro Tip:
Install a tap switch with your pump to avoid leaks and save battery power.
Eco Tip:
Use biodegradable cleaning and hygiene products, like Ecover or Dr. Bronner’s, to protect the environment when disposing of greywater. These brands offer plant-based, phosphate-free formulas, which break down naturally and minimise pollution.
Electricity System (Powering Your Van)
Battery Setup:
- AGM Batteries: Affordable; see Yuasa.
- Lithium Batteries: Lightweight and long-lasting; check Renogy or Battle Born.
Charging Options
- Solar Panels: Roof-mounted monocrystalline solar panels are recommended for maximum efficiency. Their higher energy conversion rate makes them ideal for campervan setups.
- MPPT Controllers: Maximum Power Point Tracking (MPPT) controllers significantly improve solar charging efficiency by optimising voltage and current from the panels to the batteries.
- Split-Charge Relays: Split-charge relays enable batteries to charge while driving, ensuring a backup source of power when solar energy is unavailable.
Eco Tip: Combining solar panels with split-charge systems allows for more sustainable energy use, reducing reliance on fuel-powered generators.
Pro Tip: If planning an off-grid setup, consider DC-to-DC chargers for even more efficient battery management while driving
Electrical Distribution:
- Inverters: Convert 12V DC to 240V AC, allowing you to run household appliances in your campervan. Explore inverter options to find the right fit for your setup.
- Fuse Boxes: Essential for electrical safety, preventing overloads and short circuits. Learn more about fuse box setups to ensure proper installation.
- Battery Monitors: Accurately track energy usage, helping you manage power consumption efficiently. Check out battery monitor options for real-time monitoring solutions.
Eco Tip:
Choose pure sine wave inverters for better efficiency and longevity, reducing energy waste.
Pro Tip:
Install a dedicated fuse box for your leisure battery system to prevent electrical faults and ensure safe distribution.
Build Tip:
Use a DC cable calculator like this one to size wiring correctly. Poor cabling causes fires.
Pro Tip:
Use a VictronConnect app or similar to remotely monitor your entire energy system.
Eco Tip:
Reduce your electrical load by using 12V LED lights and efficient appliances like Dometic fridges.
Toilet Options (Comfort Off-Grid)
Options:
- Cassette Toilets: Like Thetford Porta Potti. Easy to use and empty at official dump points.
- Composting Toilets: Try Nature’s Head or Trelino.
- Bucket + Bag Systems: Use compostable liners and sawdust. Try Bog in a Bag.
- No Toilet: Use apps like Park4Night to locate facilities.
Build Tip:
Install ventilation fans with composting toilets to reduce odours and speed up decomposition.
Pro Tip:
Secure your toilet in a multi-use cabinet (e.g. doubles as a seat or storage).
Eco Tip:
Use coconut coir instead of peat for composting more sustainable and just as effective.
Windows & Ventilation
Window Types:
- Tempered sliding windows for airflow.
- Fixed windows for light without ventilation.
Ventilation Options:
- Maxxair Fans: Variable speeds and rain covers.
Build Tip:
Install vents diagonally (one high, one low) for natural convection airflow.
Pro Tip:
Use reflective blackout covers to insulate and maintain privacy.
Eco Tip:
Minimise A/C use with smart vent placement and thermal blinds (Vanmade Gear).
Additional Enhancements: Insulation & Interior Finishing
Insulation Options:
- Sheep’s Wool Insulation – A natural, renewable option that regulates humidity and resists mould. It’s breathable, safe to handle, and offers excellent thermal and acoustic performance. Comparing Sustainable Insulation Materials
- Foam Board (XPS – Extruded Polystyrene) – While not as eco-friendly as natural fibres, XPS offers high R-values and moisture resistance, often used in van floors or under solar batteries. Look for brands with low global warming potential (GWP) blowing agents to reduce environmental impact. – Green Building Advisor on XPS
- Recycled Denim (UltraTouch) – Made from 80% post-consumer denim, UltraTouch is non-toxic, itch-free, and great for soundproofing. It’s treated with a borate solution for fire and pest resistance. – UltraTouch by Bonded Logic
Interior Layout:
- Use marine plywood, bamboo, or lightweight aluminium for the structure.
- Install modular furniture to allow future flexibility.
Essential Safety Equipment for Campervans
- Fire Extinguishers: A compact ABC powder extinguisher is ideal for campervans, tackling electrical, fuel, and cooking fires. Explore fire extinguisher options to ensure you have the right protection.
- CO/Smoke Detectors: Carbon monoxide is a silent threat, so installing CO and smoke detectors near sleeping areas is crucial. Check out recommended detectors for campervan safety.
- First Aid Kits: A comprehensive first aid kit should include bandages, antiseptics, and emergency tools. Find a suitable first aid kit designed for travel and campervan use.
Eco Tip:
Opt for rechargeable fire extinguishers and low-energy CO detectors to minimise waste and energy consumption.
Pro Tip:
Regularly test your smoke and CO detectors to ensure they’re functioning properly.
Build Tip:
Use hidden fasteners or rivnuts to avoid drilling through exterior panels.
Pro Tip:
Keep a maintenance logbook with wiring diagrams, gas certs, and tank specs.
Eco Tip:
Source materials second-hand or from Reclaim yards and Facebook Marketplace.
Conclusion
Building your own campervan is a deeply fulfilling project. Each decision from insulation to toilet choice shapes your comfort, independence, and sustainability.
With the right tools, a bit of patience, and inspiration from the vanlife community, you’ll soon have a custom rig that reflects your values and lifestyle.
For further inquiries or to explore how our services can support your needs.
