OPEC Update, October 2021 – Peak Oil Barrel

Oct 17, 2021 · A 1m3 insulated accumulator tank with water would also deliver 70 kWhs, with a deltaT of 60C, to be used for 2-3 days or so, this was more or less standard from the 90´s in Sweden if you had a wood fired boiler, but it´s also useful for ground source heat pumps and direct resistance heating at low electricity prices.

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