Best Combi Boilers for 2023

If you’re thinking about buying a new boiler this year, you are going to need the low down on what’s worth buying and what to avoid.

If you’re thinking about buying a new boiler this year, you are going to need the low down on what’s worth buying and what to avoid.

We’ll cover the things you really need to know:
Warranty
Brand Reputation
Customer Service
Efficiency
Hot Water Delivery
Key Features

We’ll cover the things you really need to know:
Warranty
Brand Reputation
Customer Service
Efficiency
Hot Water Delivery
Key Features

Get a great price on a new boiler in 30 seconds

Answer a few questions about your home, compare different packages,
check out affordability with finance options and get your installations within 48 hours.

Get my fixed price

Get a great price on a new boiler in 30 seconds

Answer a few questions about your home,
compare different packages,
check out affordability with finance options and get your installations within 48 hours.

Get my fixed price

Here’s our top 3 combi boiler brands of 2023

Warranty

Viessmann offer a 10 year warranty. This can be upgraded post installation for an additional fee to 12 years.

Worcester ranges from 5 to 12 years depending on the model and filter fitted. The average is 10 years.

Alpha warranties range from 7 to 10 years, this is down to which model is installed.

Viessmann offer a 10 year warranty. This can be upgraded post installation for an additional fee to 12 years.

Worcester ranges from 5 to 12 years depending on the model and filter fitted. The average is 10 years.

Alpha warranties range from 7 to 10 years, this is down to which model is installed.

Brand Reputation

Rating: 4 out of 5.

Rating: 4 out of 5.

Rating: 3.5 out of 5.

Customer Service

Rating: 4 out of 5.

Rating: 4 out of 5.

Rating: 4.5 out of 5.

Efficiency

98%
Based on the Vitodens 100-W 30kW

89.4%
Based on the Greenstar 4000 30kW

93%
Based on the E-TEC 28kW

98%
Based on the Vitodens 100-W 30kW

89.4%
Based on the Greenstar 4000 30kW

93%
Based on the E-TEC 28kW

Hot Water Delivery

12 Ltr/min
Based on the Vitodens 100-W 30kW

12.3 Ltr/min
Based on the Greenstar 4000 30kW

12.1 Ltr/min
Based on the E-TEC 28kW

12 Ltr/min
Based on the Vitodens 100-W 30kW

12.3 Ltr/min
Based on the Greenstar 4000 30kW

12.1 Ltr/min
Based on the E-TEC 28kW

Key Features

Inox radial stainless steel heat exchanger

Good backup support

Great build quality & affordable pricing

Inox radial stainless steel heat exchanger

Good backup support

Great build quality & affordable pricing

What’s Our Verdict

We believe Viessmann are the top premium branded boiler, however if you’re on a budget, Alpha offer a combi boiler to go easy on the bank balance. Ready to purchase your new boiler or want to compare prices? Jump to that here

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