Variable-speed pumps vs heat pumps: Start with the pump, then the heat pump if you need heat

Variable-speed pumps cut electricity bills by 50–80% with a payback under two years — most pumps run way faster than necessary. Heat pumps cost more upfront but use far less energy than gas heaters, paying off if you heat the pool more than a couple months a year. Solar covers are the cheapest upgrade but not a trend.