If you own your own home or live in an apartment, you likely use some form of heating system to keep yourself warm during the winter months. If you have ever had to replace your boiler or have just been curious about the difference between a commercial and domestic boiler, you may wonder what the main differences are between the two types of systems. At MCR Gas, we provide both commercial and domestic boilers. Let’s take a look at both and how they differ from one another so that you can decide which type of system is best for your home or business!

Most people don’t think about boilers until they need one. It’s a common theme with many household appliances. In addition to being used in homes, commercial boilers are also used in large buildings and industrial facilities. When choosing a boiler for your building, make sure you understand how each type differs before making your decision.

Here are some of the main differences between commercial and domestic boilers:

Domestic Boilers

Commonly, domestic boilers have an output of 10 to 40 kW. They have a lifespan of between 10 to 15 years, as long as they are maintained properly and used correctly.

Domestic boilers are typically less powerful than commercial ones. They also usually have a smaller boiler. Boiler systems that are used in residential homes can have up to 15 radiators and produce heating and hot water for houses with 6 or fewer people. Combination boilers and boilers with cylinders are different kinds of units.

Commercial Boilers

Typical boilers for commercial use tend to be in the 30 to 150-kilowatt range and resemble common residential models. That being said, their upgraded components are significantly different from domestic ranges of boilers. This is in order to cope with the increased duties of these boilers which work in a commercial environment. Additional items that can be found on a commercial boiler installation are low-loss headers, compensated mixing circuits, and flue fan dilution systems. The size of the heat exchangers can withstand the increased flow rates because of their larger sizes.

Therefore, additional radiators can be installed in the heating system without worrying about a circular flow. Generally, commercial boilers are used in large private residences, hotels, offices, care homes, and other establishments. You may only use someone with a domestic gas qualification to work on commercial boilers if you have that same qualification. Installing these elements is possible as long as their installation output is below 70Kw, and gas installation pipework is below 35mm.

Gas and oil are typically used as the fuel source for a boiler, which can be found in homes and in various commercial establishments like offices, warehouses, industrial complexes, schools, hospitals, etc.

Don’t be fooled by thinking that all boilers look alike! Make sure you know what kind of boiler is best for your home or business. Contact MCR Gas today to learn more about these types of boilers, as well as our other services and products.

How Does A Boiler Work?

Your boiler uses oil, gas, or electricity to create heat and warms up water inside the boiler. You send the warm water or steam throughout your home via the radiators or radiant floor systems, warming the air in the process. The boiler also creates hot water for showers, baths, dishwashers, washing machines and other household appliances. When it comes time to replace your current system with a new one, you’ll need to determine whether you want a commercial or domestic model. Both are available at MCR Gas, contact us today to find out which one suits your needs the best.

How To Choose The Right Commercial Boiler For Your Premises

Here are some features to take into consideration when you’re buying a commercial boiler:


For this particular feature, it is important to figure out how many radiators will be needed to heat the house or office, how large the building is, and how many hot-water outlets are currently installed. However, if you are unsure, it is best to get an expert to come to your home or business and provide you with advice on the right choice.

Energy Efficiency

More often these days, people are getting boilers that are energy-efficient. And with any new business, being budget-conscious is key. But even if you’re not, you’ll still be saving a ton of money year after year.

Type Of Fuel

There are a few different types of fuel for boilers including oil and natural gas. Sometimes, electricity can power the boiler. Hydrotreated vegetable oil is rare, but it is considered a form of renewable diesel and as such more and more people are choosing it to power their boilers.

One choice you have to make yourself is which boiler to get, although there are companies that offer a series of guides that allow you to see the pluses and minuses of the different varieties so you can make an informed decision.

Contact Us For A Domestic Or Commercial Boiler Installation

If you have questions about whether or not your place would benefit from either a commercial or domestic boiler, contact MCR Gas today to speak with one of our friendly team members! We will be happy to assist you.