Why a Cabin Needs Its Own Heating Plan

A garden cabin is rarely a miniature house. It is smaller, more exposed, and usually used in short bursts — an hour of writing, an afternoon of potting, an evening with friends. That pattern changes which heater makes sense. You want gentle, reliable background warmth rather than a blast of heat you will switch off before it has paid for itself.

Before buying anything, spend an afternoon on the fabric of the building. Draught-proof the door, fit a brush strip at the threshold, seal gaps around window frames and lay a rug over a cold floor. A cabin that holds its warmth needs a far smaller heater, and every pound spent on insulation earns itself back through lower bills.

Infrared Panels: Heat People, Not Air

Infrared panels emit radiant heat that warms surfaces, objects and people directly, rather than the air around them — a little like the sun on a cool spring morning. Switch one on and you feel it within seconds.

That makes them a natural fit for cabins used in short sessions. A slim 350W to 700W panel mounted on a wall or ceiling takes up almost no space, runs silently, and gives you somewhere comfortable to sit almost immediately.

• Best for: occasional use, small cabins, and warming the spot where you are sitting rather than the whole room.
• Running costs: a 500W panel used for four hours draws 2kWh — roughly 50p at 25p per kilowatt-hour.
• Watch out for: because the air stays cool, the warmth fades once you move away or switch off, and a very leaky cabin lets much of it escape.

Oil-Filled Radiators: Slow, Steady, Silent

An oil-filled radiator heats its own body of oil first, then releases that warmth gradually. It is the tortoise of cabin heating: slow to get going, but pleasant to live with and still giving out heat twenty minutes after you switch it off.

For a well-insulated cabin used for longer stretches — a full working day, an afternoon of crafts — this even warmth is hard to beat. Most domestic models run at 1kW to 2kW, so match the size to the space rather than reaching for the biggest one on the shelf. A plug-in thermostat or timer lets the radiator tick over gently instead of running flat out.

• Best for: longer sessions, insulated cabins, and anyone who dislikes the dry feel of fan heaters.
• Running costs: a 1kW radiator on a thermostat might average 500W over an evening — about 75p across six hours.
• Watch out for: heavy, bulky and slow. It will not rescue a freezing cabin in ten minutes.

Heat Pumps: The Low-Carbon Long Game

An air source heat pump moves heat from the outside air into your cabin instead of generating it from scratch. That is why it can deliver two to four kilowatts of heat for every kilowatt of electricity — efficiency no resistive heater can match.

The catch is that heat pumps work best running steadily for long periods, in a well-insulated space, at lower flow temperatures. A draughty cabin used for an hour a week will never repay the investment. A cabin that is insulated and used most days very much will. Small plug-in units designed for garden rooms and converted outbuildings make this far easier than a full domestic installation, and some qualify for grant support.

• Best for: cabins in regular use, where you want a proper room-temperature space rather than a warm corner.
• Running costs: roughly a third to a half of an equivalent resistive heater, though the upfront price is much higher.
• Watch out for: noise from the outdoor unit, siting requirements, and the need for good insulation to hit the figures quoted.

Running Costs and Greener Electricity

All three options run on electricity, so the tariff you are on matters as much as the heater you choose.

• Compare in kilowatt-hours, not watts. A 2kW heater used for one hour costs the same as a 500W heater used for four.
• Consider a time-of-use tariff. Run a radiator or heat pump during cheaper off-peak windows, often overnight or early afternoon, and the savings are substantial.
• Pair with solar and storage if you can. Even a small panel and battery setup can cover much of a cabin's background heating in the sunnier months.
• Use smart controls. A timer, thermostat or app-based plug means the cabin is warm when you arrive, rather than heating an empty room for hours.

A genuinely green tariff — backed by renewable generation rather than offsets alone — turns any of these heaters into a low-carbon choice. Check the fuel mix your supplier publishes rather than trusting the label on the bill.

Choosing for the Way You Actually Use the Cabin

If you want warmth for an hour here and there, start with an infrared panel and some draught-proofing. If the cabin is your daily office, an oil-filled radiator on a thermostat will keep you comfortable at a sensible cost, and a heat pump becomes the better long-term answer once the insulation is up to scratch. Many cabin owners end up with two: a panel for quick, targeted warmth and a radiator or heat pump for steady background heat.

Whatever you choose, insulate first, control it properly, and match the heater to your habits. A warm cabin in February is one of life's quiet pleasures — and it need not cost the earth.