An expert addressed the potential risks of using an upside-down terracotta pot over lit candles as an additional form of heating.

Catherine Storer, a heating expert at Essential Site Skills (ESS), has warned against the popular DIY hack.

Despite its apparent cost-effectiveness, this method poses severe safety risks that should not be overlooked.

Storer highlighted the genuine danger of the terracotta pot exploding or shattering due to exposure to high temperatures.

The pot may not be designed to withstand such conditions, resulting in serious burns and potential harm to millions of individuals.

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Another critical concern revolves around the fire hazard stemming from the melted wax of the candles.

If the pot becomes unstable or falls, the candles can tip over, leading to the melted wax coming into contact with flammable materials, thereby risking fires that can jeopardise lives and properties.

Storer also underscored the risk of carbon monoxide poisoning arising from inadequate ventilation for the candles.

Burning candles in an enclosed space, such as under a terracotta pot, can consume oxygen and produce carbon monoxide, which may accumulate to dangerous levels.

Carbon monoxide, being a colourless and odourless gas, poses a lethal and all but undetectable threat in high concentrations.

To address these concerns, Storer recommended more effective and safer ways to keep homes warm.

Ensuring proper insulation, such as sealing gaps around doors and windows, adding attic insulation, and using thermal curtains, can significantly reduce the need for additional heating sources.

Storer also advocated for the regular bleeding of radiators to enhance heating efficiency by releasing trapped air in the system, allowing for proper circulation of hot water.

She said: “One of the most effective ways to keep your home warm is by ensuring it’s well-insulated. This includes things like sealing gaps around doors and windows, adding insulation to your attic, and using thermal curtains. These measures help retain heat inside your home, reducing the need for additional heating sources.”

Storer added: “Regularly bleeding your radiators can significantly improve heating in your home. Trapped air in the heating system can prevent hot water from circulating effectively. By bleeding your radiators, you release this air, allowing the radiator to heat up properly.”