Set the electric booster or heat-pump system to run during the day when solar panels are producing electricity, if your setup and tariff allow it. Keep collectors clear of shading, check for leaks or unusual noises, and arrange professional servicing according to the manufacturer’s recommendations. Using less hot water, fixing dripping taps and insulating accessible pipes can also reduce energy use. Have electrical or plumbing work completed by a licensed professional, and check the manufacturer’s instructions for system-specific maintenance.