Budget pool installation Budget: $20,000 – $25,000 Options: Above ground, plunge, vinyl-lined, fibreglass, swim spas Swim spas are a budget-friendly swimming pool option. Photo: RT Edgar.

Researchers in Jordan have designed a solar-assisted heat pump system for swimming pool heating at a hotel in the coastal city of Aqaba. They found that the system has a payback time of only 1.94 ...