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Witten by Bernard Morgan (Engineer) & Adam Apperley (Marketing). Published: January 12, 2024. Updated: February 15, 2024

Best boiler for 3 bedroom house

The best boiler for a 3 bed house depends on how many radiators and bathrooms you have.

What works for one property may not work for another. So when choosing the best boiler for a 3 bedroom house, it’s useful to do research. Mainly so that you’re not dealing with an incorrect installation.

To help avoid this, choose an installer who has aligned themselves with a manufacturer. Otherwise, you could end up dealing with many problems. An installation that doesn’t follow manufacturer guidelines could void the warranty.

For example, Boilerhut has aligned itself with Viessmann, Alpha, Navien and Grant. We are a national premium installer and are accredited for each company.

So we’ve gathered all the information needed for the best boiler for 3 bed house.

For a 3 bedroom property, we will generally always recommend a combi boiler. However, there may be some occasions where this isn’t the best option.

Maybe your pipework and radiators aren’t in good condition or buried under solid flooring? In this case, adding a pressurised combi boiler may cause problems. Or, maybe you are thinking about extending your home in the near future? You might be better off with a different boiler type to future-proof yourself.

If you want to see our top 10 boiler brands and models guide, click here >

What size boiler do I need for a 3 bedroom house?

A typical 3 bedroom house in the UK has 1 bathroom. Knowing how many bathrooms you have in your property is essential for choosing the right sized boiler.

As noted above, we would recommend a combi as the best boiler for a 3 bed house. However, system and regular boilers are good options too. To learn more about boiler types read our guide >

It’s worth knowing that combi boilers would need to be more powerful than system or regular boilers. This is because heating fresh cold water for hot taps and showers on demand takes a lot of energy.

BOILER TYPE EXAMPLE OUTPUT REQUIRED
Combi Greenstar 4000 30kW 28kW to 35kW
System/Regular (Heat-only) Vitodens 100-W 18kW to 25kW

Having more than 3 bathrooms in a 3 bedroom property would be highly unusual. Under these conditions, we would recommend a storage combi boiler. You can find out more about storage combi boilers here >.

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What is the best boiler for a 3 bed house?

We believe reliability, efficiency and reputation are the best considerations when buying a new boiler. Modern condensing boilers should last 10-15 years. So the more reliable the boiler, the better for your bank account.

It’s always very tempting to go for the cheapest option. But we really, really, don’t recommend that if you can help it.

What often gets overlooked are the expenses towards frequent boiler repairs. And the possibility that the boiler will break down after 3 years and it only has a 2-year warranty. Leaving you with. no option but to buy another boiler.

These are our recommendations for the best boilers for a 3 bedroom house in 2024.

Please note: The prices below are an average of 3 or more prices from online plumbing wholesalers. Correct as of January 2024. Prices are for the boiler only, and do not cover the installation costs or any extras.

BRANDMODELOUTPUT (KW)PRICE*FUEL
ViessmannVitodens 100-W Combi Boiler30£1,441Gas/LPG
Worcester BoschGreenstar 4000 Combi Boiler30£1,479Gas
ViessmannVitodens 050-W Combi Boiler30£1,143Gas/LPG
ViessmannVitodens 111-W Storage Combi Boiler32£2,139Gas/LPG
AlphaE-Tec Plus28£919Gas

#1. Viessmann Vitodens 100-W

Viessmann Vitodens 100-W - Winner Best boiler for 3 bed house | BoilerhutThe Vitodens 100-W is one of the best boilers on the UK market for 3-bed houses. It’s affordable, reliable, stylish and will work as expected for years.

You can learn more about the Vitodens 100-W combi boiler here >

Here are a few of the stand-out features:

  • Patented stainless steel heat exchanger – for life-long efficiency.
  • 12-year warranty.
  • 94% A-rated efficiency.
  • Modulation range of 1:10.
  • Backlit LCD touchscreen.
  • Low carbon emissions.
  • Quiet operation.
  • Built-in WiFi for fault monitoring.
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#2. Worcester Bosch Greenstar 4000

Worcester Bosch 4000 - Best boiler for 3 bed house | BoilerhutWorcester Bosch is the most popular boiler brand in the UK. The 4000 range is their mid-range boiler and offers great functionality in a compact form.

You can read our full review of Greenstar 4000 combi boilers here >

Here are our favourite features:

  • 10-year warranty
  • 94% A-rated efficiency
  • Compatible with Worcester Bosch’s EasyControl app.

Unfortunately, this boiler has an aluminium heat exchanger, making it less corrosion-resistant. It will also lose approximately 10% of its efficiency over ten years. This means it will cost more to run over time.

#3. Viessmann Vitodens 050-W

Viessmann Vitodens 050 W - Best boiler for 3 bed house | BoilerhutThe 050-W is Viessmann’s great value entry-level boiler that still sits in the premium boiler category. It’s compact, quiet and great-looking.

For a full and detailed review, read about the 050-W system boiler >

As a quick summary:

  • Patented stainless steel heat exchanger.
  • Low carbon emissions.
  • 92% A-rated efficiency.
  • Built-in WiFi.
  • Touchscreen.
  • 10-year warranty.

#4 Viessmann Vitodens 111-W

Viessmann Vitodens 111-W - Best boiler for 3 bed house | BoilerhutThe Viessmann Vitodens 111-W storage combi boiler is a high-efficiency, wall-mounted condensing boiler. It has an impressive efficiency rating of up to 98%, earning it an A rating.

For a detailed review of this fantastic boiler, please read this page >

A few of the key features and specs of the 111-W:

  • Integrated 46-litre hot water tank.
  • Up to 21.2 litres a minute of hot water.
  • Can fill 140-litre bath in 8 minutes whilst supplying another tap.
  • LPG compatible without additional hardware.
  • Integrated WiFi.
  • 10-year warranty.
  • Modulation of 1:10.
  • Quiet operation.

#5 Alpha E-Tec Plus

Alpha E-Tec Plus | BoilerhutA popular boiler with a stainless steel heat exchanger. It’s an excellent addition for a mid-tier boiler.

Here are a few stand-out features:

  • 10-year warranty.
  • Stainless steel heat exchanger.
  • Integrated filling loop.
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Best Oil Boiler for 3 bedroom house

It’s estimated that up to five million households across the UK aren’t connected to the mains gas grid. If you want to dig into the details of the best oil boilers available in 2024 please read our guide >

Navien LCB700 Best oil boiler for a 3 bedroom house | BoilerhutThe oil boiler we recommend for a 3 bedroom house is the Navien LCB700 Blue Flame combi boiler at 28kW.

  • 93% A-rated efficiency.
  • 7-year warranty.
  • Blue Flame technology means it’s future-proof for the potential release of bio oils.
  • Modulation range of 1:10.
  • Stainless steel heat exchanger.
  • Low carbon emissions.

What is a Combi Boiler?

If you want a full and detailed explanation of what a combi boiler is and how they work, please view our combi boiler section >. Or for a list of the best combi boilers read our guide >.

In summary, a combi boiler provides heating and hot water in one unit. System and Regular boilers require a hot water cylinder to store hot water.

Combi boilers are great for homes with an average hot water usage. This is because they heat hot water on demand and can only provide hot water at either the boilers maximum rate or the cold water pressure rate. System boilers can provide a higher rate of hot water.

What is a Storage Combi Boiler?

A storage combi boiler is between a combi boiler and system boiler. They have a hot water tank inside the unit meaning they can provide more hot water than most combi boilers. This is without the need for an external hot water cylinder.

They are more expensive than standard combi boilers but less expensive than a full system installation.

Read more about storage combi boilers here >

Benefits of choosing a manufacturer-aligned installer

Choosing the right company makes a massive difference on the outcome of your boiler installation. Boilerhut is a premium Viessmann Partner across the UK.

Why does this matter?

Boilerhut are a premium Viessmann installer. We have installed thousands of boilers for Viessmann across the UK. We have a strong relationship with the manufacturer. Because of this influence and cooperation, we can provide you with many benefits:

  • Our  close working partnership with Viessmann allows us to give you a higher level of support
  • Highly experienced installation company across all Viessmann products
  • Viessmann extended warranty
  • High-quality manufacturer service – ensures your boiler performs exactly as promised

Get your new boiler with Boilerhut and we’ll look after you for years to come.

Get Your FREE Online Quote Today!
Save up to £590 PER YEAR on your heating bills.
Quote in 30 seconds. No obligation. Next Day installation.
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