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Home > Blog > HVAC > Commercial vs domestic boilers – What are the differences?

Commercial vs domestic boilers – What are the differences?

  • HVAC
  • April 1, 2022
Kathryn Glover
  • Kathryn Glover
  • HVAC expert
JLA commercial boiler inspection

From schools to hospitality settings, a large range of buildings and businesses rely on commercial boilers. But, what benefits do commercial boilers provide, and is a commercial boiler or a domestic boiler right for your business?

In this guide, we take a detailed look at commercial vs domestic boilers, to help you make an informed decision of what’s right for your business.

Commercial boiler benefits

In very large industrial settings, commercial boilers are responsible for creating an environment that’s comfortable for staff and customers alike. Due to their size, domestic boilers have trouble heating large spaces. By choosing a commercial boiler, you’ll not only heat the room effectively, but you’ll also do it efficiently, saving money on your energy bills.

When it comes to heating a large space or different rooms across a larger premises, domestic boilers simply won’t be big enough to stand up to the task. Plus, it’s unlikely that they won’t be covered by their warranty if something goes wrong.

Commercial vs domestic boiler differences

Generally, the difference between commercial boilers and domestic boilers comes down to the size of the appliance.

Boiler size (or output) is measured in kilowatts (kW) and domestic boilers have a lower output than commercial versions. Generally, domestic boilers range in size from 24kW to 42kW.

In general, appliances with a larger output than this should be classed as commercial boilers. The heating outputs of commercial boilers varies widely. For example, some of our boilers have an output of 49kW, while others have an output of 320kW. Thanks to the range of outputs, it’s simple to find an appliance that meets your specific heating and hot water needs. Plus, you can choose from floor-standing boilers or wall-mounted boilers, too.

Do I need a commercial boiler or a domestic boiler?

Whether you need a commercial boiler or a domestic boiler will depend on the space you need to heat. When selecting a boiler, think about the following requirements:

1) Size

As we mentioned above, commercial boilers vary in terms of size. When selecting your new boiler, you’ll need to have a good idea of the heating and hot water requirements of your premises. If you’re unsure of what to choose, one of our experts will be able to guide you throughout your selection. Don’t worry if you’re unsure, one of our experts can help you.

2) Energy efficiency

As we mentioned above, commercial boilers vary in terms of size. When selecting your new boiler, you’ll need to have a good idea of the heating and hot water requirements of your premises. If you’re unsure of what to choose, one of our experts will be able to guide you throughout your selection. Don’t worry if you’re unsure, one of our experts can help you.

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Kathryn Glover

Kathryn Glover

HVAC expert
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Kathryn Glover is the Managing Director for JLA’s HVAC division, responsible for the end-to-end functions, service, and performance. She has extensive experience in Continuous Improvement where she worked on a variety of projects adopting and enhancing processes whilst improving service to customers.

Her background at JLA includes service delivery, implementation of scheduling platforms, digital projects, contracts management, billing functions and customer services.

Kathryn has worked across multiple departments, including laundry, catering, fire safety and now is responsible for JLA’s HVAC division, which includes commercial boilers and air conditioning. 

Read Kathryn's full profile

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