I'm in the process of installing a new inground pool this fall. I've narrowed it down to two installers. One has proposed a typical steel wall pool, with heat pump, salt water generator, and looploc. The other is proposing a poured concrete wall pool with an automatic cover - but no heat pump or looploc because he claims that the automatic cover will provide enough heat (e.g. Solar Cover), that you wouldn't need the heat pump. The price difference on an apples to apples basis is $7,600 - the automatic cover pool being more expensive. The automatic cover installer claims that the $7,600 we pay itself back in a few years due to lower utility costs (no heat pump), less maintenance and the requirement for fewer chemicals. I live in Southern New York (Long Island). Does anyone have any advice? I leaning towards the steel wall installer (who's been around for 42 years), and the lower price - but I'm not sure if I'm missing something. I find it hard to believe that the automatic cover will provide enough heat to offset the need for a heater.