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New Year New Oil Fired Boiler

Has your oil boiler seen better days? Thinking of getting a new one? To help you make an informed decision on which brand here’s some information on the best Oil Boiler’s for 2022.

According to data collected in May 2020, 85% of UK households use gas-fired boilers to heat up their homes and provide hot water. However, around four million households aren’t connected to the Gas Grid. Instead, they rely on a range of alternative heating fuels such as LPG, oil, solid fuels, electricity or solar to make their homes toasty!

If you’re one of these four million, then you might want to look at the right options to heat up your home, especially if your old heating system is ready to retire or you’re planning to renovate your home.

Here, we’ll take a look at the best oil boilers out there to help you choose the right oil boiler for your home (and wallet!). But first, you might want to find out what type of boiler you have, before you take the plunge.

Top 3 best oil boiler brands 2022

1. Worcester Bosch

Worcester Bosch is the leading boiler manufacturer in the gas boiler market, and that includes the oil boiler market too. To sum it up, Worcester Bosch offers an extensive range of boilers with a range of different fuels and is suitable for properties of all sizes.

Worcester Bosch is known as being the “Rolls-Royce of the heating industry”. It is at the premium-end, but you’ll get excellent build quality combined with elegant design. It’s a brand you can rely on.

Surely it’s no surprise that Worcester Bosch came first according to Which? Best Boiler Brand survey 2021.

During the survey, 8,001 members of the public who’ve bought a boiler in the past six years were asked to rate their Worcester Bosch oil boilers based on reliability and how likely they were to recommend Worcester Bosch to friends and family.

Which? asked 153 Which? Trusted Traders how they felt about the build quality, the ease of fixing and servicing Worcester Bosch boilers and how easy it is to get hold of boiler spare parts.

Here’s the score:

Worcester Bosch overall score 79%
Reliability Score
Brand customer score
Brand engineer score

Worcester Bosch prides itself on its excellent customer service. It has a TrustPilot score of 4.6/5.

Worcester Bosch oil boiler warranty

Worcester Bosch oil boiler warranty is between 2-7 years depending on the boiler model.

Worcester Bosch oil boiler range

No matter what your house size is, Worcester Bosch has got you covered. The Worcester Bosch oil boiler comes in the following models;

  • Greenstar Danesmoor
  • Greenstar Heatslave II (best selling model)
  • Greenstar Utility

Available as a combi, system and regular oil boiler.

Worcester Bosch oil boiler cost 

The cost varies depending on the model and oil boiler type. It could start from £2,600 for an oil combi boiler, £1,860 for an oil system boiler and £1,700 for an oil conventional boiler**. These boiler prices don’t include installation though, so be sure to factor that in.


2. Grant

Grant has over four decades of boiler manufacturing experience. They’re known for quality and reliability, offering a range of boilers that can be easily installed and maintained.

The entire Grant oil boiler range was awarded a Which? Best Buy Awards in 2017, 2018 and 2019. Which? recognises Grant boilers as one of the best oil boiler brands in the market and described it as a “reliable” brand.

Grant’s rating:

Grant overall score 71%
Reliability Score
Brand customer score
Brand engineer score

Grant has an astonishing score on TrustPilot (4.5), which indicates that their customer service is brilliant, and their customers are happy with the product.

Grant oil boiler warranty

Nothing says that the boiler is built to last more than a long warranty and that’s what you get when you invest in a Grant boiler.

The boiler range warranty is 5 years. (10-year guarantee when installed by a G1 Installer, if you bought a Vortex Blue) – your driving license will expire before your boiler warranty does!

Grant oil boiler range

Grant designed a wide range of products which means you’re guaranteed to find the right one for your home.

The range includes;

  • VortexBlue (best selling model)
  • Vortex Pro
  • Vortex Eco

The award-winning Vortex and VortexBlue oil-fired condensing boilers are available in internal, external, combination, boiler house and wall-hung models, all of which are endorsed by the Energy Saving Trust.

Grant oil boiler cost

To give you a rough idea, the Grant combi oil boiler prices start from £2,220, while the system oil boiler range starts from £1,610, and Grant regular boilers price range starts at £1,240.**


3. WarmFlow

WarmFlow is the most efficient oil boiler. Their combi oil boiler saves up to 5ltrs of fuel per week because it is the only AA rated oil combi boiler in the market (no other brand has an AA rated combi oil boiler). Sounds too good to be true!

WarmFlow has over five decades of boiler manufacturing experience. It uses a unique patented stainless steel heat exchanger alongside the latest Riello burner.

Although WarmFlow isn’t featured in the Which? Best Boiler survey, it doesn’t affect its reliability. It has a ​​4.3 TrustPilot score which means that their customers are happy with the boilers and customer service.

WarmFlow oil boiler warranty

Warmflow offers a 5-year warranty for both parts and labours if installed by a Warmflow Connect approved installer.

WarmFlow oil boiler range

The WarmFlow Agentis oil boiler comes in combi, system and regular oil boiler range. This includes internal and external boilers. It also includes boiler houses and professional boiler systems.

Additionally, they also produce a professional range which is the only oil boiler to include a factory fitted magnetic filter saving installation time and money.

WarmFlow oil boiler cost

WarmFlow oil boiler price range starts from £1,970 for an oil combi boiler, £1,370 for an oil system boiler and from £1,170 for regular oil boilers.**

Source: Warmzilla

*Average boiler prices were taken from an online heating supplier 
** Prices correct at time of blog publication (1.12.21) 

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