Hi all,(adsbygoogle = window.adsbygoogle || []).push({});

I'm sorry if this is an inappropriate question. I have built a basement swimming pool for my wife. Unfortunately I neglected to insulate outside the concrete and insulating inside the concrete has caused some construction issues so I am trying to work out the heat loss if I go ahead without insulation.

I know the approximate ground temperature outside the concrete box.

I can establish an R value for the waterproof concrete.

I know the dimensions i.e. the surface area of the pool walls / bottom and the volume of water.

The heat loss from the pool surface will presumably be the same whether I insulate the pool or not so can be disregarded for the comparison.

Is there an equation that I can plug my values into so see how many BTU I will have to put in with and without insulation so I can establish how much not insulating is going to cost me in energy terms?

Humble thanks in anticipation,

Rob

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# Simplistic fluid heat loss - water in a concrete tank

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