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    thermal mass

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    A1
    n. (u.)Uncountable NounThe ability of a material to absorb and store heat energy.
    Concrete has a high thermal mass, making it useful in passive solar design.
    n. (u.)Uncountable NounA property of building materials that allows them to store and release thermal energy, moderating indoor temperatures.
    The building's thermal mass helps to regulate temperature fluctuations.

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    The $300 Homestead Heater That Beats Your $30,000 Furnace (Science Explained)

    11:34The $300 Homestead Heater That Beats Your $30,000 Furnace (Science Explained)
    • it captures the exhaust heat inside a thermal mass before it can escape.

      it captures the exhaust heat inside a thermal mass before it can escape.

    • It captures the exhaust heat inside a thermal mass before it can escape.

      It captures the exhaust heat inside a thermal mass before it can escape.

    B2