If you are looking for a reliable, quality solution for hydronic expansion, HeatWave tanks are the answer. HeatWave tanks are built to the same stringent standards as the PressureWave and Challenger series and do not require any maintenance. HeatWave tanks are quality tested at several stages on the production line to ensure the structural integrity of every tank. HeatWave tanks represent the best value for the investment and are superior to other competing products.