Dan Holohan: Heating Help

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Many big buildings in our older cities use vacuum pumps to create a negative pressure in their condensate-return lines.

As many businesses know, the Occupational Safety and Health Administration can be a constant reminder of the need to keep our workplace safe.

Nothing but the truth.

Our daughter, Colleen, is the executive director of an AmeriCorps program called the Massachusetts Promise Fellowship.

Fremont Lobbestael was from Ann Arbor, Mich., and he worked as a salesman for the Hutzel Plumbing and Heating Co.

On Dec. 29, 1970, Richard Nixon signed into law legislation that created one of the most consequential and controversial agencies in our government — the Occupational Safety and Health Administration.

TRVs don’t make heat; all they do is prevent overheating.

TRVs don’t make heat; all they do is prevent overheating.

“If there’s an automatic feeder, it will probably flood the boiler.”

Imagine selling boilers that way. “What’s the difference between this boiler and that boiler?”