Here you can explore our articles about some of the key topics in commercial heating, hot water, legislation and energy efficiency.


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Combine but also separate the old from the new for an efficient heating system

To help support the installation of our latest Stratton mk3 wall-hung condensing boiler onto existing heating systems, we've also introduced a range of Plate Heat Exchangers, for increased boiler protection and performance.

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No flow boilers – application and installation

Varmax no flow boiler

No flow boilers don’t depend on the system circuit flow for safe operation. But how does a no flow boiler work? Understand the application and installation of no flow boilers for cost effective heating system design.

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Primary circuit or boiler shunt pumps in commercial heating

Individual boiler shunt pumps installed with Hamworthy Wessex ModuMax boilers at the Langham Hotel in London.

A question we get asked a lot at our CPD seminars is: ‘Which is best - a boiler shunt pump or primary circulation pump?’ There's no correct method, as long as the minimum flow is always maintained. And it will always depend on the project. In this article, we’ll look at the different pump options and their pros and cons.

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What are expansion vessels for unvented kits?

How an expansion vessel works

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.

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What is an Unvented Kit?

Direct fired water heaters installed in an unvented system at an Aademy

Understand unvented hot water systems, closed systems and discover what is included in an unvented kit

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How to size a low loss header

Low loss header

Understand how to size a low loss header to maximise efficiency in residential and commercial heating systems

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What is a low loss header? And when to use one.

Stratton wall hung boiler with low loss header

Understand low loss headers and hydraulic separation, when to use a low loss header, and their benefits and disadvantages.

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Hydraulic separation in heating systems

A plate heat exchanger can be used to hydraulically separate a heating system.

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.

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Efficient heating system design with built-in boiler controls

Correct boiler control setup helps to improve heating system efficiency.

An often overlooked aspect of energy efficiency is correct monitoring of external factors which influence the temperature in a building, understanding the usage of premises and how to set up boiler controls correctly. We look how these can assist to set up an efficient heating system.

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Low loss headers explained

low loss header diagram schematic

Why should you use a low loss header in your commercial heating system? We explain how it works and what benefits it can have for your heating system.

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