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.

Boiler heat exchanger for commercial heating

Which commercial boiler heat exchanger is best for my project?

A wide variety of metal alloys are used in commercial boiler heat exchangers. Not every metal is suited for every application, that’s why we’re taking a look at the benefits of each material and for which kind of projects they are a popular choice.

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Building Regulations Part L Uplift: What’s changed one year on?

As we approach the one-year mark since revisions to the approved Document L of the England Building Regulations were introduced, we’ve seen a significant step towards more energy-efficient DHW heating products in commercial buildings.  Whilst not necessarily new to the scene, the latest regulations have certainly thrust the benefits of condensing water heaters such as our Dorchester DR-SG into the spotlight. 

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Cast iron boilers

Cast iron condensing boilers

Cast iron is a material that has been used for a long time in commercial boilers. Learn how it has developed over time and why it is still a material of choice in the heat exchanger of our boilers.

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Changing boilers from atmospheric to condensing

Changing from atmospheric boilers to condensing boilers.

Refurbishing a commercial heating system can bring many challenges. In this article, we're looking at older heating systems and what needs to be considered when preparing them for a change from atmospheric boilers to condensing boilers.

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Changing heating system design with wide temperature differentials

Wide differential temperatures in heat networks

Wider temperature differentials are increasingly used to design commercial heating systems. We investigate how this affects heating system performance and what you need to understand when designing these systems.

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Cleaner Heat Cashback

The Government has introduced a commercial boiler scrappage scheme for London to cut carbon and NOx emissions in the capital to improve air quality and energy efficiency in non-domestic buildings. We take a look at the criteria for a replacement, how the application works and how you can become a Hamworthy-approved installer.

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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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Commercial boiler flue systems

Room sealed boiler flue

How much do you know about different flue types? We have compiled this page for you to find out more about available flues and what they look like.

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Commissioning commercial boilers

Commissioning is an essential procedure to ensure your commercial boilers and/or water heaters have been correctly installed and setup. What does it involve and what other benefits does it offer?

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Comparing direct and indirect fired water heaters

Comparing Indirect vs Direct hot water systems - which system is best for me?

What is the difference between direct and indirect fired hot water systems? What does it depend on and whether I should choose one over the other? We shed light on this topic in this article.

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