What UK landlords need to know about boilers


Date: 11 September 2023

A Gas Safe heating engineer services a domestic boiler

Landlords in the United Kingdom are responsible for maintaining a safe and efficient heating system in their rental properties. In this guide, we will delve into what UK landlords need to know about boilers with a specific focus on the legal requirements for maintenance and safety considerations.

Legal requirements

Upgrade by 2025: As part of the Government’s plans to achieve net zero by 2025, all landlords must upgrade their boilers to A-rated efficiency boilers, which may involve removing gas boilers, which make up 90% of boilers in the UK. Other options include hydrogen boilers and heat pumps. All boilers must be insured and covered as part of their responsibilities as a landlord so that they can pay for any quick fixes and replacements.

Gas Safety Regulations: In the UK, landlords are obligated to ensure that all gas appliances, including boilers, are safe to use. This is governed by the Gas Safety (Installation and Use) Regulations 1998. It is mandatory to have a Gas Safe registered engineer inspect and certify the boiler annually. A copy of this gas safety certificate (CP12) must be provided to tenants within 28 days of the inspection. See also environmental regulation and protection laws.

EPC Regulations: Landlords must also adhere to Energy Performance Certificate (EPC) regulations. EPCs provide an energy efficiency rating for the property, including the boiler. Landlords must ensure that their properties meet the minimum energy efficiency standards. In some cases, this may mean landlords are required to upgrade the boiler to a more efficient model.

Boiler types

Combi Boilers: Combi (combination) boilers are the most popular choice for UK homes. They provide hot water on demand and do not require a separate hot water cylinder. Combi boilers are space-saving and energy-efficient, making them a popular choice for rental properties.

System boilers: System boilers incorporate a hot water cylinder, making them suitable for homes with multiple bathrooms. These boilers are efficient and offer good water pressure but may require more space.

Regular boilers: Also known as conventional or heat-only boilers, regular boilers require both a hot water cylinder and a cold water tank. They are less common in modern properties but may be found in older homes.


Regular servicing: Boiler service and maintenance is essential for both safety and efficiency. Landlords should arrange annual servicing by a Gas Safe registered engineer. This not only ensures the boiler operates safely but also prolongs its lifespan.

Tenant responsibilities: Tenants should be educated about their responsibilities in maintaining the boiler. This includes promptly reporting any issues or faults and not attempting DIY repairs.

Safety considerations

Carbon monoxide (CO) alarms: Landlords must install CO alarms in any room with a solid fuel-burning appliance (eg a wood-burning stove) or a boiler. Regular testing and battery replacement are crucial to ensure the alarms are functioning correctly.

Ventilation: Adequate ventilation in rooms containing a boiler or areas with gas appliances is essential to prevent the buildup of harmful gasses.

Boiler manuals: Providing tenants with the manufacturer's manual for the boiler can help them understand its operation and troubleshoot minor issues safely.

Replacing and upgrading boilers

Age and Efficiency: Older boilers are often less energy-efficient and may not meet modern standards. Landlords should consider replacing outdated boilers with more efficient models to reduce energy bills and meet legal requirements.

Financial assistance: Landlords can explore government schemes and incentives to support boiler replacements, such as the Boiler Upgrade Scheme or the Green Deal.

In summary

Boilers play a pivotal role in providing warmth and hot water in rental properties in the UK.

Landlords must navigate legal requirements, choose appropriate boiler types, ensure regular maintenance, prioritise safety and consider replacement or upgrades when necessary.

By understanding these key aspects, landlords can fulfil their responsibilities and provide comfortable, safe, and efficient heating solutions to their tenants, ultimately benefiting both parties in the rental agreement.

Copyright 2023. Article made possible by Tudor Lodge Digital.

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