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Last updated: 26th October, 2022


Ideal Logic+ Heat Only Boiler Review

Ideal Logic+ Heat Only Boiler Review

Today we will be reviewing the Ideal Logic + heat only boiler, specifically in its 18kW capacity and whether or not this is the right boiler for you and your home.

With over a century of being at the forefront of the heating industry, Ideal has helped revolutionise the UK market through design and innovation.

Ideal continues to be one of the most trusted and reliable boiler manufacturers in the UK due to a fusion of vast experience and a willingness to constantly innovate.

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What Is The Ideal Logic Range?

Launched in 2009, the highly accredited Logic boiler range from Ideal has been hailed by both consumer markets and industry insiders.

With an emphasis on providing highly energy efficient boilers to reduce emissions whilst simultaneously reducing a homeowners energy bills, the Logic range sounds… well, ideal.

Ideal Logic + 18kW Technical Specifications


10 Years on parts and labour warranty

Boiler type

Heat Only


A-Rated @ 89%

Max output



W 395mm, D 279mm, H 700mm

Ideal Logic + 18kW Key Features

  • UK manufactured

  • Quiet Mark award recipient

  • Good Housekeeping awards 2013 and 2017

  • Queen's Award 2013

  • Sleek, compact cupboard boiler fit

  • Built-in frost protection

  • Fully back-lit LCD display

  • Energy Saving Trust endorsed

  • LPG conversion available

Ideal Logic + Efficiency

‘A’ Rating

With an 89% ErP ‘A’ score, the Logic + heat only has been officially endorsed by the highly reputable Energy Saving Trust, a hallmark of eco-friendly quality.

Built-In Frost Protection

The Ideal Logic + heat only was granted the Queen's Award in enterprise innovation due to its advanced built-in frost protection. Cold weather complications account for a huge number of boiler unreliability or breakdown issues, this often results in service or repair fees.

Installation and Boiler Repair 

Even when it comes to installation, the Logic + heat only is very efficient, a telescopic flue and clip flue turret connections make this boiler incredibly easy to install for a Gas Safe registered engineer.

Ideal is such a prevalent brand even amongst the current industry wide boiler shortage, replacement parts can be readily sourced and fitted.

What Is A Heat Only Boiler?

A heat only (sometimes referred to as regular, conventional, open vent) boiler provides the heat for a home's central heating system and hot water cylinder.

A heat only boiler is suited to servicing larger properties with multiple bathrooms/radiators or a business premises with a high water demand. 

Heat only boilers do require sufficient installation space within a property, as they use two storage tanks (feed & expansion) as well as the aforementioned hot water cylinder.

Although a combi is generally considered more space saving, a heat only boiler is still compact and can supply more bathrooms with hot running water than a combi can.

However if you think your property is more suited to a combi, check out our handy guide to the best combis of 2022 right here!

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Ideal Boiler Quality

As a market leader, the Ideal brand boasts an ‘Excellent’ 4.8/5 star rating on Trustpilot, having been reviewed over 20’000 times!

The constant recognition as evidenced by awards and endorsement from both consumers and industry sources, only confirms the success of the Ideal brand and its product range. 

How Much Does An Ideal Logic + Heat Only Boiler Cost?

iHeat prices for the 18kW Ideal Logic + (including installation) start at £2245. The prestige of a Logic range boiler model carries great value forward and has been tirelessly designed to ensure and maximise product longevity. 

New Ideal Boilers

Here at iHeat we want our customers to receive the highest quality products, that's why we stock a range of Ideal boilers.

With next day Gas Safe installation available, up to 10 year warranty, and a price match guarantee, get a free instant quote on our website today!

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Stephen Day profile photo
Article by
Stephen Day | Co-founder
Gas Safe registered and FGAS certified engineer with over 20 years experience in the heating and cooling industry.