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Zanussi Ultra Combi Boiler

Zanussi Ultra Combi Boiler

The Zanussi Ultra Combi is available in different outputs to suit your heating and hot water requirements.

Zanussi’s Ultra Combi is a condensing gas-fired boiler that fits neatly inside a kitchen cupboard and does not require an external hot water storage cylinder. It’s an energy-efficient and ErP compliant boiler and it comes with a generous parts and labour warranty to give you total peace of mind that the boiler will run at peak performance year after year. If you’re interested in purchasing the Ultra Combi, you can choose from two outputs to suit your needs and lifestyle.

How Much Does this Boiler Cost?

You can expect to pay between £660 and £780 to buy the Zanussi Ultra Combi. These prices do include VAT but not the cost of installing the boiler, so you need some extra cash to pay for the fitting work. The typical installation cost of a combi boiler is anything from £500 to £1,600. To find the best deal, shop around and get a range of fixed-price quotes from local and national installers. If you can’t afford to pay for your boiler upfront, look for a company that offers boilers on finance with flexible payment options.

How will I know if this Boiler is Suitable for My Home?

The Zanussi Ultra Combi is a combination boiler, so all the components are situated within the boiler and it can be installed without the need for additional tanks or a hot water cylinder. It has compact dimensions and can fit inside a kitchen cupboard, making it perfect for homes with limited storage space. As Zanussi’s Ultra Combi is available in two outputs of 30kW and 35kW, it’s also ideal for small to medium-sized homes with a maximum of one or two bathrooms.

Choosing the right size of boiler is extremely important as an undersized boiler won’t keep your home warm and an oversized boiler will lead to higher energy bills. If you’re unsure, a local Gas Safe registered engineer will be able to help you figure out if the Zanussi Ultra Combi is the best choice for your home and tell you what size/output you need.

Is it a High Efficiency Boiler?

Yep. The Zanussi Ultra Combi is A-rated for heating and hot water and it should save you money on your gas bills if you choose it to replace an old combi boiler. It’s a fully modulating boiler, which basically means it can adjust the heat output on its own to generate greater energy savings. Plus, the boiler is compatible with a range of optional controls, including weather compensation which adjusts the heat output according to the outside temperature and further improves the efficiency of your heating system.

Does this Boiler have a Good Range of Controls and Features?

This boiler has all the usual external functions and controls, as well as frost protection, an easy to use built-in filling loop and two-stage flame sensing for greater reliability. It has the latest generation Honeywell gas valve, automatic bypass and universal condensate connection. The Zanussi Ultra Combi can also be supplied with a range of additional flueing options and there is a visually impaired fascia option available too. And like we said before, the boiler can be used with a range of optional controls to improve comfort and efficiency.

How long is the Warranty on this Boiler?

Zanussi offers a 10-year parts and labour warranty on its Ultra Combi and the warranty must be registered by a Gas Safe engineer.

Summary of Important Information

  • Expect to pay between £660 and £780
  • Heating output of 30kW or 35kW
  • Hot water flow rates of 12.4 or 14.5 litres per minute
  • Dimensions of 700mm (H) x 395mm (W) x 278mm (D)
  • Uses gas as its fuel source
  • A-rated for efficiency
  • 10-year warranty as standard

Pros and Cons

The Zanussi Ultra Combi is a budget-friendly boiler that’s economical to run and a lot cheaper than some of the other boiler brands around today. You may, however, want to get the opinion of a trusted engineer before you purchase this boiler as the brand has an average rating on Trustpilot. Keep scrolling to check out all the pros and cons.


  • Considerably cheaper than some other gas boiler brands
  • Suited to small and medium-sized homes
  • Easy to install, use and service
  • Visually impaired fascia option
  • Fully modulating operation to low outputs
  • Frost protection
  • Two-stage flame sensing for greater reliability
  • Latest generation Honeywell gas valve
  • Provides maximum energy efficiency – reduce fuel bills and carbon emissions
  • Compatible with a range of optional controls – improves efficiency and performance
  • 10-year warranty


  • Average rating on Trustpilot – correct at time of writing this in November 2020