The ‘Single Package’ Solar hot water heating solution from Andrews. SOLARflo package can be installed with an Andrews primary heating appliance such as the MAXXflo condensing storage water heater, a continuous direct-fired condensing water heater or a commercial condensing boiler. The primary heating appliance can also be supplied as part of the package for new-build and refurbishment projects. The major benefits this package affords specifiers and contractors is an effective “one-stop-shop” for a totally integrated solution, including solar system sizing from a company with proven expertise and commitment to developing innovative low carbon products and solutions.