Ideal Logic+ vs Logic Max: Which Ideal Boiler, and What It Costs Fitted

Ideal is one of the UK's best-known boiler brands, and its boilers are made in Hull. With BoxHeat, an Ideal combi costs from £2,570 fully fitted. The choice comes down to two models from Ideal's Logic range: the Logic+ Combi 2 and the Logic Max.

This guide explains how the two differ, which size to choose, what each costs fitted and how to keep the warranty valid. To browse the boilers themselves, see our Ideal boilers page.

Yes. Ideal was founded in Hull in 1906 and still makes its boilers there. It has been part of the French heating group Groupe Atlantic since 2015.

• Familiar to engineers: Ideal boilers are fitted all over the UK, so engineers know them well and parts are easy to get.
• Easy to live with: both models we fit have a built-in filling loop for topping up the pressure and an intelligent pre-heat for quicker hot water.
• Smart controls: both work with Ideal's Halo thermostats and other OpenTherm controls.

The trade-off is price. With BoxHeat, Ideal's cheapest combi costs more than the cheapest Worcester Bosch, Baxi, Viessmann or Glow-worm, so it suits people who specifically want an Ideal.

Both are A-rated condensing combi boilers from Ideal's Logic range. They look the same, are the same size on the wall (395mm wide, 700mm high and 278mm deep) and deliver the same hot water flow at each size. The differences are the warranty and the filter.

• Logic+ Combi 2: the lower-cost choice, with a 7-year Ideal warranty. View the Logic+ Combi 2
• Logic Max: the latest evolution of the Logic range, with a 10-year Ideal warranty and an Ideal System Filter included. View the Logic Max

For most people, the Logic Max is the better value: three extra years of warranty for £50 more on the 24kW, or £90 more on the 30kW. Every BoxHeat installation includes a magnetic system filter whichever model you choose.

Our online quote covers the Ideal Logic+ Combi 2 and Logic Max in 24kW and 30kW. If you're after a different Ideal boiler, such as a larger Logic combi, a Vogue, or an Ideal system or regular boiler, call us on 0345 905 7500. We may be able to arrange it, and we'll confirm the price with you before you go ahead.

You can also get an instant online price for system and regular boilers from Worcester Bosch, Baxi and Viessmann. Not sure which type you have? Our guide to combi vs system boilers explains the difference.

Both models come in 24kW and 30kW. For a combi, the size mostly decides how much hot water it can deliver at once:

• 24kW: hot water at up to 9.9 litres a minute. Logic+ Combi 2 24kW or Logic Max 24kW.
• 30kW: hot water at up to 12.4 litres a minute, which helps when a tap and a shower are often used at the same time. Logic+ Combi 2 30kW or Logic Max 30kW.

These are our fixed prices for a like-for-like combi replacement, correct in November 2026.

Prices include the boiler, a magnetic system filter, removal of your old boiler, a chemical system flush, controls set-up and installation by a Gas Safe registered engineer. If your home needs extra work, such as moving the boiler or converting to a combi, it's included in your fixed quote. Get your fixed price online, or spread the cost with boiler finance (monthly finance available, subject to status).

Ideal's warranty needs registering within 30 days of installation, and we register it with Ideal for you. After that, Ideal's main condition is that the boiler is serviced every year by a Gas Safe registered engineer, so keep your service records.

On the Logic Max, Ideal links the full 10-year warranty to the Ideal System Filter, so ask your engineer to clean the filter at each annual service.