Heat waves are nothing new to California. Nor are the occasional rolling blackouts they produce when demand for power is too high for the system to keep up. But with heat records falling nearly every year, and ever more people and houses and air-conditioning units in the Golden State plugging into the state’s electric grid, […]
Use filters, but know the limitations If you have a central heating, air-conditioning or ventilation system, install high-efficiency air filters. They should be rated 13 or higher on the 16-point industry MERV scale (Minimum Efficiency Reporting Value) that measures how effectively they block tiny pollution particles. Make sure to replace them on schedule, about every […]