Is a Heated Throw Cheaper Than Turning the Heating On?

Woman wrapped in a cosy heated throw on a sofa

Photo by Amin Hasani via Unsplash

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You've found a heated throw and you're about to buy it — but is it actually cheaper than just turning the heating on for the evening? Here's the honest maths, because the answer genuinely might surprise you.

The Real Cost Comparison

A typical electric heated throw uses around 100–120 watts on its higher settings. At current UK electricity prices (roughly 27–30p per kWh), that works out to approximately 3–4p per hour to run.

Central heating, by contrast, typically costs somewhere in the region of 30–60p per hour to run a whole house, depending on your system, insulation and the size of your home — and that's heating rooms you're not even sitting in.

For a single evening on the sofa, a heated throw genuinely is a fraction of the cost of heating the whole house — often 10–20 times cheaper for the same comfort where it actually matters.

When It Makes the Most Sense

  • You're home alone or it's just one or two of you in the evening — no need to heat the whole house for that
  • Your living room is the one room you're actually using on a given evening
  • You're trying to delay turning the heating on for the season as long as possible
  • You want warmth without the dry-air feeling central heating can give

When the Heating Still Makes Sense

If the whole household is spread across multiple rooms, or you need the rest of the house comfortable too, a heated throw isn't a replacement for heating — it's a smart addition for the one room and the one person actually feeling cold.

The Honest Verdict

Yes, genuinely cheaper — for the specific use case of one or two people wanting warmth on the sofa for an evening, rather than heating an entire house. It pays for itself within the first few uses compared to what you'd otherwise spend flicking the heating on.

Slumberdown Luxury Heated Throw — Reversible Sherpa & Fleece, 10 Heat Settings

Approx. 3–4p per hour to run · Timer · Machine washable · 2-year guarantee

Check Price on Amazon UK →

Want a non-electric option too? See our full guide to the best sofa throws for every budget.

Cosy throw, but the sofa underneath needs sorting too? Browse our full range of preloved sofas — quality pieces at a fraction of new prices.

Browse preloved sofas at Revived Sofas →

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