Thanks for your question. We aren't pool experts so I would verify your question with a infinity pool company to get the best and most accurate information. In general, yes I think you would lose some heat then with a traditional pool. You always lose water with a pool due to evaporation and usage, but I don't think you would lose more then the average with an infinity edge. Hope that helps!

Is this the illusion of infinity edge because of location but water does not really flow over edge?also is this a fiberglass pool?What color is the water?

This is a gunite pool with a limestone coping edge and the water does flow over the edge.

Hi mamaot - Both are true.

The amount of water loss depends on several factors though. The width of the infinity edge, height of the drop, size and depth of the basin and wind exposure.

As for heat loss, any type of water feature will have an aeration effect - cooling the water. There will be more heat loss with an infinity edge pool because of the constant overflow but it is still possible to heat.

In San Antonio, where we are, it's not as much of a problem because of our high temperatures, but where you are, I'm sure you want to keep as much heat in the pool as possible. That being said, if you have a great view, an infinity/negative edge pool would be a wonderful addition to your backyard.