Recent Articles

How to replace a boiler whithout getting into hot water.
This article is directed to building managers. It describes the things to consider when replacing a boiler plant in a large building to ensure that the new system will work efficiently. The article covers issues like multiple boilers, low return water temperatures, low flow through boilers and energy efficiency. Originally published by the Ontario Non-Profit Housing Association.

Ten Ways to Save Energy
Actually eleven ways to save energy are discussed including maintenance, boiler plants, make-up air units, heat pumps, etc. It covers low cost measures as well as energy conservation measures to be considered when replacing major equipment. This article was originally presented as a seminar to the Ontario Non-Profit Housing Association Annual Meeting.

The "PST" System
Primary-secondary-tertiary pumping (PST) is a way of designing a heating plant that saves energy by avoiding overheating apartments in mild weather. This article describes how primary-secondary-tertiary pumping works, and how it ensures that the new high efficiency boilers receive the flow and higher return water temperatures they require for long service life.