The component library

Every part of a conversion, three ways.

156 products across 84 subcategories, in budget, mid and premium. Weights marked verified carry a source; everything else is an estimate worth checking against the spec.

Electrical

1

Power Core

Leisure battery

9.7–30 kg typical

LiFePO4 9.7-13kg per 100Ah; AGM 25-30kg. The DIY/Victron component route.

  • Mid

    Renogy 100Ah Smart LiFePO4

    Renogy

    11.8 kg✓ verified≈ £320

    100Ah LiFePO4, Bluetooth, self-heating, ~4000 cycles. DIY workhorse.

  • Mid

    Renogy Core Mini 100Ah LiFePO4

    Renogy

    9.7 kg✓ verified≈ £330

    Lightweight 100Ah LiFePO4, self-heating. Best weight-saver.

Heating

4

Heating

Diesel air heater

2.5–4 kg typical

Unit ~3kg. Diesel is the default UK off-grid choice — cheap, dry, no gas.

  • Budget

    2kW diesel heater (clone kit, Vevor)

    generic

    3.5 kgest.≈ £120

    Cheapest way to heat a van. Complete kit. Variable QC, louder, no support. Popular budget choice.

  • Mid

    Autoterm Air 2D 2kW kit

    Autoterm (Planar)

    2.9 kg✓ verified£905

    The UK favourite. 2kW, 0.1-0.24 L/h, altitude sensor, E-marked, 7-day support. Kit incl. tank/ducting/exhaust/pump.

  • Premium

    Eberspacher Airtronic 2kW

    Eberspacher

    2.8 kgest.≈ £1,150

    Premium OEM diesel heater, factory-fit quality, quiet.

  • Premium

    Webasto Air Top 2000 STC 2kW

    Webasto

    2.7 kgest.≈ £1,100

    Premium German OEM-grade, quiet/reliable. May need extra fuel-tap parts. Durability choice.

Diesel heater install kit

2–5 kg typical

Tank/pickup, ducting, exhaust, mounting.

  • Mid

    Fuel tank/pickup + ducting + exhaust + mounting

    generic

    3 kgest.≈ £90

    Most branded kits include this; budget separate tank/ducting/exhaust/mounts. Adds a few kg.

Electric heater

1–3 kg typical

Only viable on hook-up / very large bank.

  • Budget

    12V/mains electric heater

    generic

    2 kgest.≈ £60

    Light/cheap but drains batteries fast. Only on hook-up or very large bank. Not a primary off-grid source.

Gas blown-air heater

3–6 kg typical

Unit + gas system; bottle is the real weight. Gas Safe sign-off.

  • Premium

    Truma gas blown-air heater

    Truma

    5 kgest.≈ £900
    Needs qualified sign-off (gas/electrical)

    Only if you run gas. Needs flue + certification. Real weight is the bottle (full 6kg Calor ~12kg+).

Safety & Compliance

16

Safety & Compliance

Alarms & detection

0.3–1 kg typical

MANDATORY. CO + smoke + LPG gas alarm (if gas). Cheap, light, life-saving.

  • Budget

    CO + smoke + LPG gas alarm

    Fireangel/generic

    0.6 kgest.≈ £45

    NON-NEGOTIABLE with cooking/heating/gas. CO alarm (RV-rated), smoke alarm, low-mounted LPG alarm if gas (propane sinks).