Is infrared heating good for poorly insulated homes?

Quick answer

Is infrared heating good for poorly insulated homes?

Infrared can make a poorly insulated room feel warm quickly because it heats you and the surfaces directly rather than the leaky air. But no electric heater escapes physics: a draughty room loses heat fast, so running costs will be higher than in a well-insulated home. Infrared is best used here for targeted, occupied-zone heating alongside basic insulation improvements.

The comfort advantage in leaky rooms

In an old, draughty room, warm-air heating struggles because the heated air is constantly replaced by cold. Infrared side-steps that: it warms the floor, walls, furniture and people directly, so you feel comfortable even while some air is being lost to ventilation. That makes it genuinely useful in conservatories, period cottages and hard-to-treat solid-wall homes.

The running-cost reality

Comfort is not the same as cheapness. Our model uses a heat-loss figure of about 1.1 W/K per m² for a well-insulated room and 2.4 W/K per m² for a poorly insulated one — more than double. That gap flows straight through to the bill: the same infrared panel in a leaky room runs far longer to hold temperature, so it costs more to run.

The takeaway is not 'avoid infrared', it is 'target it'. Heat the room you are in, when you are in it, and pair it with cheap wins like draught-proofing, loft insulation and heavy curtains to cut the heat-loss figure.

When it is the right call

For off-gas-grid homes, listed buildings where wet systems are intrusive, and single rooms used intermittently, infrared is often the most practical option even before insulation work. For continuous whole-home heating of a poorly insulated property, a heat pump plus fabric upgrades will usually be cheaper to run over the year. We will always tell you which camp your home is in.

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Reviewed by the Infrared Heat Solutions technical team · Last updated July 2026 · Data sources: Open-Meteo, Ofgem, Energy Saving Trust

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