Office Boiler Types and Maintenance Required

February 7th, 2025

Last updated: February 7th, 2025

Heating an office efficiently is an essential part of maintaining a comfortable and productive working environment. There are a number of office boiler types, each with its own set of advantages, drawbacks, and maintenance needs. Some systems have been widely used for years, while newer technologies are becoming more popular due to efficiency improvements and environmental concerns.

Choosing the right commercial boiler for an office space depends on several factors, including the size of the building, energy efficiency requirements, and long-term running costs. A well-maintained boiler ensures consistent heating and reduces unnecessary breakdowns, keeping workplace temperatures stable throughout the year.

Conventional Gas Boilers – The Traditional Choice

Gas boilers remain one of the most widely used heating systems in UK office buildings. They work by burning natural gas to heat water, which is then circulated through radiators or underfloor heating systems. These boilers are popular because they offer reliable heating, cost-effectiveness, and high energy output.

For larger office spaces, system boilers (a type of gas boiler) are often preferred because they include an integrated hot water storage tank, making them suitable for workplaces with multiple bathrooms or kitchen areas.

Gas boilers require annual servicing to maintain efficiency and safety. Regular checks help prevent carbon monoxide leaks, pressure issues, and reduced performance over time. However, concerns about fossil fuel reliance and government pushes toward lower-emission solutions mean that gas boilers may not be the long-term choice for many office buildings.

Electric Boilers

Electric boilers are becoming more common, especially in smaller office spaces and buildings that lack access to a mains gas supply. These boilers heat water using electricity rather than combustion, making them a cleaner option in terms of emissions.

One of the biggest advantages of electric boilers is their low maintenance requirements. They are also significantly quieter than some other office boiler types, which is an added benefit in office environments.

However, electric boilers have higher running costs compared to gas alternatives. Electricity tends to be more expensive than gas, which can make them less economical for large offices that require substantial heating. That said, with the increasing focus on renewable energy and carbon reduction, electric boilers may become even more popular in the coming years.

Biomass Boilers – The Eco-Friendly Alternative

For offices looking to reduce their carbon footprint, biomass boilers provide an environmentally friendly heating solution. These systems burn organic materials like wood pellets or chips, offering a sustainable alternative to fossil fuels.

Biomass boilers have gained traction in offices committed to sustainability, particularly in new developments aiming for green building certifications. They can be more cost-effective over time, especially if businesses take advantage of government incentives for low-carbon heating systems.

One downside is the space required for fuel storage. Unlike gas or electric boilers, biomass boilers need a dedicated area for wood pellets or chips, which can be impractical in smaller office buildings. They also require more frequent maintenance, including ash removal and burner cleaning to ensure optimal performance.

New Technologies Changing Office Boiler Choices

Heat pumps are becoming an attractive alternative to traditional boilers, particularly in offices aiming for energy efficiency and sustainability. They work by extracting heat from the air or ground and transferring it indoors. While not technically boilers, heat pumps serve the same purpose of providing heating and hot water.

The biggest advantage of heat pumps is their low environmental impact. They produce far fewer emissions than gas boilers and can be paired with renewable energy sources, such as solar panels, to further reduce office heating costs.

Maintenance Needs: Which Office Boiler Types Require the Most Attention?

You may already have an office boiler, perhaps you are trying to work out exactly what maintenance is required for the type of boiler you have and how to ensure you are sticking to your legal responsibilities.

Gas Boilers – Regular Checks Are Essential

Gas boilers demand routine servicing to remain safe and efficient. An annual inspection is required by law in commercial buildings to check for gas leaks, faulty connections, and pressure problems.

Electric Boilers

Electric boilers have the advantage of low maintenance. With fewer mechanical components and no combustion process, they rarely need major servicing. However, limescale buildup can become an issue in areas with hard water, making occasional descaling necessary to maintain efficiency so we still recommend an annual service.

Biomass Boilers

Biomass boilers require more frequent maintenance than both gas and electric alternatives. Ash must be cleared regularly, and fuel delivery systems need to be kept clean to prevent blockages. While these boilers can be cost-effective in the long run, they require more hands-on management.

Final Thoughts

Office heating solutions are changing, with businesses considering not only cost but also energy efficiency and environmental impact. Gas boilers remain the standard, especially in older buildings, but electric and biomass boilers are gaining popularity due to their cleaner energy use.

Maintenance requirements vary depending on the system chosen, but whatever your office boiler type, our team can help.

Robinsons Facilities Services is your one-stop shop for all your commercial boiler needs.

Contact us today for all planned, reactive maintenance or emergency call out.

Call 01423 226578 or send us an enquiry to see how Robinsons Facilities Services can help.