AquaCal is the largest pool heat pump manufacturer in the world, with over 35 years of experience. In total, we’ve built over 250,00 heat pumps, with a whole host of innovative technological patents and breakthroughs to boot. We’re leading the way in electrical heat pump technology to help homeowners heat their swimming pools while saving money and having a minimal environmental impact. All of our heat pumps are made in the USA, and we service everything we sell. AquaCal is the only manufacturer in the country with an on-site testing lab and an environmental chamber. Put simply, we’re the number one pool heating solution.