You’re a bit confused about buffer tanks. They are thermal stores and just store primary heating circuit water.
The water from the buffer tank isn’t the hot water from the tap. The water in the buffer tank will be used to indirectly heat mains water. Either through a plate heat exchanger or an unvented cylinder.
I am not confused, although maybe my wording was confusing.
My point is, that generally speaking, you can’t use water from the same tank to heat your drinking water and to cool your home (because it mixes and the resulting temperature will fill neither requirement). There are of course tons of variants of buffer tanks, and in some cases there are bypasses or there’s a physical separation between heating water and (water used to heat) drinking water
You’re a bit confused about buffer tanks. They are thermal stores and just store primary heating circuit water.
The water from the buffer tank isn’t the hot water from the tap. The water in the buffer tank will be used to indirectly heat mains water. Either through a plate heat exchanger or an unvented cylinder.
I am not confused, although maybe my wording was confusing.
My point is, that generally speaking, you can’t use water from the same tank to heat your drinking water and to cool your home (because it mixes and the resulting temperature will fill neither requirement). There are of course tons of variants of buffer tanks, and in some cases there are bypasses or there’s a physical separation between heating water and (water used to heat) drinking water