Here you will find occasional articles covering a wide range of technical topics.

Callidus Design Articles
Psychrometrics Chart Humidity

Introduction to the topic of Psychrometrics i.e. measuring, calculating and controlling the quantity of moisture in the air (humidity) by either humidification in winter or dehumidification in summer.

Chilled Water Systems

This article covers the main use of cooling and chilled water systems across all business sectors.

LTHW Heating Systems

This artilce covers the main types of hot water heating systems in use across most business sectors.

Burst Heating Cooling Coil

The perennial winter season issue of frost damaged heating or cooling coils in ventilation plant.