How much does a Commercial Boiler cost?

What is the cost of a new commercial boiler?

If your business has just moved into a new commercial building, you’re looking to move, or perhaps you have just purchased a large home (with 5+ bedrooms), then the question ‘how much does a commercial boiler cost?’ is likely to raise its head at some stage now, or in the future.

How much does a commercial boiler cost?

When replacing a commercial boiler the exact cost can be difficult to pin down as it is based upon a number of factors unique to your own situation.

However, in this article we’re going to clarify as much as we can for you, by looking at:

  • What determines the need for a commercial boiler?
  • How do you size a commercial boiler?
  • How much does it cost to fit a commercial boiler?
  • How long does it take to install a commercial boiler?

Let’s dive in…


What determines the need for a commercial boiler?

A commercial boiler is very similar to a domestic boiler you would find in your home, but the main differences are that;

  • The output is more than 70 kilowatts
  • The boiler itself has been classified as “commercial” by the company who manufactured it.

The precise kilowatt output depends on your exact requirements – typically how many square feet your commercial building spans and your exact heating/hot water requirements.

Gas pipework with a diameter of over 35mm is used to supply the boiler itself, so commercial boiler installations must be carried out by commercial Gas Safe registered engineers.

Commercial boilers are found across businesses in many different sectors such as hotels, in factories, in warehouses, in office blocks – even in churches – as having reliable heating and hot water is imperative for any business to function.

It’s important to note that some larger homes – generally homes with 5+ bedrooms, 3+ bathrooms over 2,000+ square feet – will also benefit from the installation of a commercial boiler to ensure that hot water can be served quickly to all bathrooms.


How do you size a commercial boiler?

Determining the correct size boiler for your commercial space requires some simple calculations to help you determine the square footage of your business premises.

  1. Start in one room and begin by measuring the two neighbouring walls in inches. Then multiply the two lengths. This will give you the area of the room in square inches. Repeat this process in each room of the building.
  2. Add the area of all the rooms together; this is the area of the entire building in square inches.
  3. Finally divide that number by 144 (the number of square inches in a square foot).

The number you are left with is the square footage of your building.

A good base rule is that your boiler should produce around 50 British Thermal Units (BTUs) of heat for each square foot.

So as an example; if your commercial building has 10,000 square feet of space, you will need a boiler that produces 500,000 BTUs.

Other factors will come into play here and be unique to your situation, so it’s really important to have a qualified, commercial Gas Safe heating engineer come out to your premises and assess your requirements.


How much does it cost to replace a commercial boiler?

As a ballpark guide, a boiler replacement for a commercial unit occupying 2,000 square feet will likely cost between £6,000 – £8,000 (excluding VAT).

And a similar cost would be true of a large domestic property that has around 30-40 radiators.

Expected costs can increase for larger premises and for extremely large commercial units, several boiler systems may be required to provide adequate coverage.

The flue pipe’s style is one of the key elements that can raise costs. If your present boiler has a vertical flue installed in a chimney, it will almost certainly need to be replaced to meet current standards.

You may think the costs are high, but a new commercial boiler’s lifespan should be anywhere from 10-15 years, with the top end of that being easily obtainable with proper care and regular maintenance.


How long does it take to replace a commercial boiler?

The boiler installation process can take anywhere from 3-4 hours to 2-3 days depending on the size of the project and how many boilers are being installed.

Heating engineers who quote on your project should outline the expected timeframe, so this is all clear before you proceed with the work.


Looking for a boiler installation quote?

If you are currently looking to replace your commercial boiler then please do get in touch or give us a call on 07545 198220 – we would be delighted to discuss your requirements in more detail.

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