Every three years the International Association of Plumbing and Mechanical Officials publishes a revised and updated version of its signature codes — the Uniform Plumbing Code and the Uniform Mechanical Code.
Because they generate heat intermittently, renewable energy heat sources such as solar thermal collectors and pellet boilers require thermal storage tanks. So do storage-based systems using off-peak electricity, or micro combined heat and power (MCHP) generation.
The U.S. geothermal heat pump industry was breaking out the champagne on Feb. 9, 2018. That’s the day President Donald Trump signed the Bipartisan Budget Act of 2018, a bill that boosted government spending by hundreds of billions of dollars.