Commercial heating and hot water knowledge articles
Here you can explore our articles about some of the key topics in commercial heating, hot water, legislation and energy efficiency.
You can use the filter below to find out more about a specific topic.
What are expansion vessels for unvented kits?
Understand expansion vessels for unvented kits, for use in an unvented hot water system, including flow jet valves. More about the benefits, including legionella prevention.
What is an Unvented Kit?
Understand unvented hot water systems, closed systems and discover what is included in an unvented kit
How to size a low loss header
Understand how to size a low loss header to maximise efficiency in residential and commercial heating systems
What is a low loss header? And when to use one.
Understand low loss headers and hydraulic separation, when to use a low loss header, and their benefits and disadvantages.
Indirect Hot Water Cylinders and Storage Tanks
What is an indirect water cylinder or tank? Exploring calorifiers and indirect fired hot water cylinders and tanks, their features and benefits.
Direct Hot Water Systems
What is a direct fired hot water system, how does it work and what is it used for? Exploring direct fired water heaters and integral gas or oil burners, and their features and benefits.
How does a calorifier work?
Find out how a calorifier, or indirect fired hot water cylinder, works as part of an indirect fired hot water system.
Temporary boiler plant rooms
Temporary boiler plant rooms can overcome issues when refurbishing old plant to guarantee an uninterrupted heating and hot water supply.
Stratification in water heaters
Stratification in water heaters can be problematic. We explain what causes it and how it can be avoided to prevent the growth of Legionella bacteria.
Hydraulic separation in heating systems
When it comes to refurbishments, it is important to protect new equipment. This can be done by hydraulically separating the primary and secondary circuit. We look at different methods to achieve this.