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 4.8 stars

1,520 reviews

 4.8 stars

1,520 reviews

Baxi 830 Combi Gas Boiler

Baxi 830 Combi Gas Boiler Boiler
Typical Price (inc VAT)
Typical installation Cost (inc VAT)*
£500 - £1000
Sundries (Filter, Flue, etc)
Total Cost
£1,755 - £2,255

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Make Baxi
Model 830 Combi Gas Boiler
Is Condensing Condensing
Efficiency Rating 93%
Band Rating A Rating
LPG Compatible No
Standard Warranty 10 Years
Central Heating Max. Output 21.2 kW
Mounting Wall Mounted
Flow Rate 12.2 l/min
Typical Price (inc VAT) £955
Typical installation Cost (inc VAT)* £500 - £1000
Sundries (Filter, Flue, etc) £300
Total Cost £1,755 - £2,255
ERP Rating A Heat A Water
Hot Water Max. Output 30 kW

* This is a guide price for a straightforward, like-for-like boiler replacement. Installation costs will vary dependent on work required.

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Everything you need to know about the Baxi 830 combi gas boiler

This Baxi model is a highly efficient condensing gas combi boiler. Made to be compact enough to save you space, but powerful enough to provide for your heating and hot water demands.

Some of its key features include:
  • - An efficiency rating of 93%
  • - Small in size and lightweight, for quick, easy installation
  • - A magnetic filter, to keep your pipework clean and fully functioning
  • - Optional smart controls
  • - 20% Hydrogen blend ready

Is a Baxi 830 combi gas boiler suitable for my home?

This boiler is best suited for a small to medium-sized property, where space is limited, as they can be fitted in a standard kitchen cupboard.
The combi 830 can only provide adequate heat for a home with 1 bathroom and up to 15 radiators. However, Baxi does provide higher output options and boiler types within the 800 range, so you can still take advantage of the benefits of this model, even if you have a larger home with higher heating demands.

What is the output range on a Baxi 830 combi gas boiler?

This boiler has an output rating of 30kW, meaning it performs best for properties with up to 15 radiators. It is perfect for homes that don’t have an excessive demand for central heating and hot water.

What is the size of the Baxi 830?

The dimensions of this boiler in millimetres are:
Width: 390mm Height: 700mm Depth: 285mm

Baxi 830 combi gas boiler price

Including approximate installation costs, the Baxi 830 costs between £1,755 - £2,255.

Get the best deals for this combi gas boiler

To find the best deal on the installation of this boiler, it’s recommended to compare quotes from more than one qualified heating engineer. Boiler Guide can help with this! Simply click the link below to get up to 3 FREE quotes.

Warranty on the Baxi 830 combi gas boiler

Baxi offers a 10 years parts and labour warranty (terms apply) with this boiler model, so you can have peace of mind that your boiler is covered in the event of any issues.

Reviews of the Baxi 830 combi gas boiler

Baxi is consistently rated highly for providing reliable boilers and excellent customer service. Manufacturing in the UK since 1866, Baxi is known for creating energy-efficient heating products and hosting an extensive range of partner brands, including Potterton and Heatrae.

According to customer reviews on Trustpilot, Baxi is rated ‘Excellent’ with an overall score of 4.5/5.Out of over 44,000 reviews, 80% of those customers rated Baxi with the highest score of ‘Excellent’.


How many radiators can a 30kW combi boiler run?
Up to 15 radiators. As a guideline, always allow 1.5 - 2kW per radiator in the property to gauge which kW output boiler is the most suitable.
For more information on output (also referred to as boiler ‘size’) take a look at our article: What size boiler do I need?

How efficient is a Baxi 830 boiler?
The Baxi 830 combi boiler is 93% efficient, making it one of the most efficient boiler types available.
Find out more about efficiency and why it’s important in: Boiler Efficiency Explained.

Is a 30kW combi boiler enough?
This depends on the size of your home. You need to consider two things, how many bathrooms you have and how many radiators you have, to decide which boiler type and output are best for you.
An output of 30kW will power up to 15 radiators, but a combi boiler is only recommended for small-medium sized homes with one bathroom. If you have two or more bathrooms, you will need to consider a different boiler type, such as the system boiler.
Learn more about boiler types and if a system boiler is a better choice for you.

How many radiators can a Baxi 836 run?
As the Baxi 836 has an output of 36kW, this means it is capable of powering between 18-20 radiators. You should always take the advice of a certified heating engineer when it comes to choosing the best boiler for your home and it is recommended that you compare quotes before you decide.
To get the best deals, and find the right advice, you can use our simple form to get comparison quotes.

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Get a quote to install this boiler

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