Living off-grid

From our Guide to living on a narrowboat

Black and white illustration of a houseboat with festive activities, plants, and a garden on its roof and deck.

How off‑grid living works on a narrowboat

Self-sufficiency on a narrowboat is not just a romantic ideal – it’s a practical, rewarding way of life. It allows you to reduce your living costs, minimise environmental
impact, and enjoy a greater sense of independence.

Energy independence

Solar power

Harnessing solar energy is one of the most effective ways to reduce dependency on your engine or shoreline power.

Solar panels: Most modern narrowboaters install solar panels to charge batteries for lighting, water pumps, and running appliances like laptops and fridges.
Battery bank: A robust battery system (ideally leisure batteries with a monitoring system) stores this energy.
Charge controllers: MPPT controllers optimise charging efficiency and prolong battery life.

A penguin waves while standing near a leaking outdoor tap, ready for festive activities as water splashes on the ground.

Water management

You can’t survive long without fresh water, and self-sufficiency means being strategic.

Water collection and conservation

Water tanks: Keep your onboard tank topped up at public water points along the canal.
Greywater reuse: Use biodegradable soaps so you can reuse dish or hand- washing water to rinse toilets or water non-edible plants.
Rainwater harvesting: Some boaters install rain catchers for watering plants or even filtering for cleaning purposes.
Water filtration systems such as Water Freedom: An onboard system which filters canal water for domestic non- drinking use such as showers. Systems like these mean you can have a 20 minute long shower and not worry about your water tank levels!

Heating & cooking

Woodburners and multi-fuel stoves are staples of narrowboat life, offering both heat and cooking options.

Solid fuel stoves

Stove cooking: You can use your stove top or oven for slow cooking, baking bread, or heating water.
Fuel supply: Burn coal, logs, or foraged wood (where permitted).

Waste management

Toilet options

Composting toilets: Popular among self-sufficient boaters. They break down waste into safe compost with no chemicals, require minimal water, and reduce trips to disposal points.
Cassette toilets: Still most popular, but require regular emptying at Elsan points.
Pump-out system: A holding tank for toilet waste on-board and can be pumped out at marinas and some CRT service points.

Greywater & recycling

Disposal: Use CRT-approved facilities for rubbish and Sort and store responsibly onboard.

Reduce waste

Buy in bulk, use reusable containers, and avoid single-use plastics.

A cartoon penguin enjoys a shower with soap bubbles after festive activities, under running water.

Food self-sufficiency

Growing your own food

Many liveaboards grow herbs, salads, or even veg onboard. While space is limited, creativity goes a long way, and it can bring colour to your roof, save money, and provide a sense of calm and purpose. The roof is often your main growing area, but it must stay low-profile enough to pass under bridges and through tunnels. Avoid tall plants unless you’re moored long-term.

Boaters’ growing tips

Use roof planters or troughs secured with bungee cords.
Stick to fast-growing or compact crops: lettuce, chard, radish, tomatoes.
Consider vertical growing racks for herbs.

Those with moorings often have access to towpath gardens or plots of land, which offer far greater growing potential.

Best veg & herbs to grow on a boat

Here are great options for canal-friendly container gardening:

Vegetable/herb	Why it works
Lettuce & salad leaves	Quick to grow, compact, harvest continuously
Radishes	Fast, small-space crop.
Spinach/chard	Tolerant of cooler weather, grows low.
Spring onions	Takes little space, easy in a pot
Dwarf beans	Good yield from bushy container plants.
Tomatoes (bush variety)	Great in hanging baskets or grow bags.
Basil & mint	Fragrant, useful, perfect in window boxes.
Thyme, parsley, chives	Hardy and low-maintenance.

Two people stand holding hands; a speech bubble shares festive activities like veg gardening and garlic tea as a slug deterrent.

Watering tips

Collect rainwater in tanks or buckets when possible.
Avoid using canal water on edible crops unless it’s boiled and filtered first.
Use water-retaining granules in pots to reduce how often you need to water.

Foraging and preserving

Foraging: Look for blackberries, elderberries, wild garlic, nettles, and sloes along towpaths and hedgerows. Be 100% certain of identification before consuming. And be mindful of where you forage (not at dog wee height!).
Preserving: Make jams, chutneys, and Store dried herbs or vacuum- seal foraged mushrooms.

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