Sunday 22nd September 2024
    Difficulty: Very easy

    Central heating (Quiz #674)

    Photo by <a href="https://unsplash.com/@julianhochgesang?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Julian Hochgesang</a>
    Photo by Julian Hochgesang (Unsplash)

    1. What were the hot box, the mattress, and the Bundy loop early types of?

    2. By what method do radiators mainly heat your room?

    3. What colour should you paint your radiators to make them most efficient?

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