Oil boilers remain a common choice for heating in many Dublin homes, particularly in areas that are not connected to the natural gas grid. While the push for renewable energy is growing, oil-fired heating systems continue to offer reliable performance and solid value for homeowners across the city and surrounding counties.
Whether replacing an old unit or installing a new system during a renovation, choosing the right oil boiler and a trustworthy installer can make a major difference in comfort, efficiency and long-term running costs.
This guide outlines the most recommended oil boiler brands in Dublin, what to consider when buying, and who to contact when it comes time for installation.
Top-Rated Oil Boiler Installer in Dublin: Easy Flow Plumbing and Heating
For homeowners looking for a dependable installer in Dublin, Easy Flow Plumbing and Heating stands out as one of the most highly rated companies for oil boiler services.
With a strong reputation for clear pricing, efficient workmanship and customer-focused service, Easy Flow Plumbing and Heating has become a go-to option for those seeking expert oil boiler installation or replacement.
The company provides:
- Full supply and installation of trusted oil boiler brands
- Servicing and maintenance of existing systems
- Energy-efficient upgrade options
- Clear, written quotations with no hidden costs
- Fully insured and qualified plumbing professionals
Easy Flow Plumbing and Heating is regularly recommended by homeowners across Dublin and has experience fitting boilers in all property types, from suburban homes to rural cottages and older houses.
Why Oil Boilers Still Make Sense in Dublin
Although newer heating technologies are gaining popularity, oil boilers are still practical for many homes in Dublin. They are especially common in older estates or in areas where gas lines are not available.
Some of the reasons oil boilers remain in demand include:
- Strong heat output for larger or older homes
- Independence from the gas grid
- Reliable hot water and central heating supply
- Newer condensing models offer higher efficiency
- Domestic oil storage allows for flexible purchasing
A modern oil boiler can run quietly and efficiently while providing consistent warmth throughout the home. For those who already have an oil tank and setup in place, a like-for-like replacement is often the most economical option.
Best Oil Boiler Brands in Dublin
There are several brands that consistently perform well in terms of reliability, energy efficiency and after-sales support. These are the most commonly recommended oil boiler brands in Dublin:
Grant
One of the most recognised names in the Irish heating industry, Grant offers a wide range of oil-fired condensing boilers. The Grant Vortex range is well-known for its efficiency and build quality. Available in both outdoor and indoor models, these boilers are a solid option for most Dublin homes.
Firebird
Firebird boilers are manufactured in Ireland and are often praised for their quiet operation and compact design. The Envirogreen range features low-emission models and is compatible with modern heating controls. Firebird remains a top choice for those looking for a dependable, locally made solution.
Worcester Bosch
Worcester Bosch is more commonly associated with gas boilers, but their oil boiler range is also highly regarded. The Greenstar Heatslave II is a popular choice among homeowners who want a compact, high-performing system with trusted brand support.
Warmflow
Known for user-friendly controls and energy-saving features, Warmflow’s oil boilers come in combi, system and heat-only models. The Agentis range offers excellent seasonal efficiency and is compatible with smart heating technology.
What to Look for in a New Oil Boiler
Before buying a new oil boiler, it helps to understand what matters most in terms of performance and value. Here are the key factors Dublin homeowners should focus on:
Efficiency Rating
Modern condensing oil boilers can achieve efficiency ratings of over 90 percent. This means less fuel is wasted and heating bills are lower. Always check for the Seasonal Efficiency of Domestic Boilers in the UK (SEDBUK) rating or an A-rating on the unit.
Output Size
The correct boiler output depends on the size of the house, number of radiators and hot water demand. A professional installer will calculate this during a survey to avoid buying an undersized or oversized unit.
Internal vs External Boilers
External oil boilers are housed in a weatherproof casing and installed outside the home. These are ideal for freeing up indoor space and reducing noise inside. Internal models, on the other hand, are fitted indoors, often in utility rooms or kitchens.
Combi vs System
Combi oil boilers provide heating and hot water directly, without a separate water tank. These are compact and suitable for smaller homes. System boilers require a hot water cylinder but can deliver higher volumes of hot water to multiple bathrooms.
Benefits of Replacing an Older Oil Boiler
If your oil boiler is more than 15 years old, it may be time to consider an upgrade. Older models tend to be less efficient, cost more to run and are prone to breakdowns.
Upgrading to a modern condensing boiler can offer:
- Reduced fuel costs
- Lower carbon emissions
- Improved heating response times
- Quieter operation
- Better control over temperatures and timers
Some Dublin homeowners also qualify for grants or support under the Sustainable Energy Authority of Ireland (SEAI) when switching to a more energy-efficient boiler.
How to Choose a Trusted Installer
A good installer is just as important as the boiler itself. Choosing a registered, experienced and insured professional helps ensure the system is fitted safely and performs as it should.
Look for an installer who:
- Offers clear written quotes with no hidden extras
- Has strong reviews and real customer feedback
- Is fully insured and certified
- Has experience with the brand you are choosing
- Provides follow-up support or servicing options
As mentioned earlier, Easy Flow Plumbing and Heating is widely recommended in Dublin for exactly these reasons. Their team handles everything from supply to installation and ensures all safety checks are carried out before completion.
Oil Boiler Servicing and Maintenance
Once installed, an oil boiler should be serviced once a year. Regular servicing improves efficiency, reduces breakdowns and helps extend the life of the system.
A standard service usually includes:
- Cleaning the heat exchanger
- Checking the burner and ignition system
- Inspecting the oil tank and supply
- Testing safety features
- Checking emissions and adjusting settings if needed
Easy Flow Plumbing and Heating also offers ongoing maintenance and servicing contracts to help homeowners stay ahead of issues.
Summary
Oil boilers remain a popular and practical choice for many homes in Dublin. With modern models offering high efficiency and improved comfort, upgrading an older unit can be a smart move.
When it comes to installation, Easy Flow Plumbing and Heating continues to lead the way for professionalism, fair pricing and top-quality workmanship. With access to all the major brands and the experience to match, they remain the first recommendation for oil boiler services in Dublin.
For those considering a new boiler, it’s important to choose the right unit, have it sized correctly, and ensure it’s installed by someone who knows what they’re doing.