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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UK Hydrogen Strategy: What does it tell us?

The future will be a mix of electric heating and hydrogen gas

The Government’s long awaited UK Hydrogen Strategy was released in August 2021 and is very much a top-level strategy addressing infrastructure and development of a hydrogen economy in the UK. We take a look at what it did tell us.

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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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Hydrogen as a fuel source explained

What is hydrogen/.

Hydrogen gas as a low carbon fuel source is currently a hot topic that will continue to be so for the coming decade. We take a look at what Hydrogen is, how it’s produced, and when it may be used to heat our homes and buildings in the future.

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Refurb or replace – what to consider when upgrading your commercial heating system

Cast iron boilers and a closed and pressurised heating system.

What to consider when you are refurbishing your plant room. Understand your heating and hot water replacement options.

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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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Indirect Hot Water Cylinders and Storage Tanks

Hot water calorifiers 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.

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