Please note that all Gas Boilers must only be installed by rgii.ie registered & approved fitters. Flu Exhaust Kits are available for your Boiler and are purchased separately.
€1,214.95€987.76
/ Price Per ITEM
This product is out of stock and not available to order right now.
Ideal Logic 18 HE System Boiler & Flue (LOGIC SYSTEM IE)
The Ideal Logic 18 HE System Boiler is a compact, energy-efficient and dependable heating solution, ideal for sealed domestic systems in Irish homes. Designed for straightforward installation and cupboard fit, it’s well suited to both replacement projects and new builds where space is limited. With a high HARP (SEDBUK) efficiency rating and an integrated water flow sensor, it delivers consistent performance even at low system pressures.
Key Features
Output: 18kW system boiler
High HARP (SEDBUK) efficiency rating
Integrated water flow sensor for reliable operation at low system pressures
Compact, lightweight design – fits into a standard kitchen cupboard
Concealed pipe connections at the base for a neat finish
Back-lit display with clear, easy-to-read pressure gauge
LPG conversion available
Wide range of additional flueing options
Low component count for improved reliability
7-year manufacturer warranty
Please note:
Must be installed by an RGII-registered and approved installer (Ireland)
Flue exhaust kits are required and sold separately
* Effective from 3 December 2025 * Free delivery on order over €400, applies to Small & Light, Large & Heavy items within zone 1 only.
Zone Indicator:
To help you understand delivery availability, every item displays a zone icon, icons appear on the top-right corner of each product image:
Types of goods
Available zones
Descriptions
Small & light items
All Zone area
Items under 20kg weight & under 2m long, (some fragile items may not be included e.g. glass/mirrors)
Large and bulky items Extra Large items
Zone 1 & 2 only
Wet & hazardous bagged, items over 20Kg weight & oversized; Euronics white goods, TVs of all sizes.
Large Paint items (6L / 6L+)
Zone 1 only
Large hazardous items (6L+) - available for collection
Available zones
Indicator
Descriptions
All zone area
This icon with all zone area in green, indicates this items can be shipped to all Zone.
Zone 1 & 2 only
Zone 1 & 2 in green and zone 3 greyed out, indicates this product can only be shipped to Zone 1 and 2
Zone 1 only
Zone 1 in green zone 2 and zone 3 are greyed out, indicates this product can only be shipped to Zone 1 only.
Old Appliance Collection:
When you buy a large appliance, we’ll collect your old one for free through WEEE Ireland. Please ensure it is uninstalled, disconnected, and ready for pickup. Collection is like-for-like and takes place at the front door or apartment entrance. Restrictions may apply based on access and item type.
At TJ O'Mahony we will exchange or refund any Retail unused product returned to us in its original condition within 30 days of receiving it (*)You can return any unused product to us in its original condition for a full refund or exchange within 30 days of delivery.
This right to return does not apply to products that are non stock and only available to order such as catalogued doors, catalogued bathroomware and mixed paints which are made especially for your order.
Please note that we are unable to accept returns on certain bagged building products and materials, including (but not limited to) hard wall, cement, bonding, slates, and ridges. We appreciate your understanding and recommend checking product requirements carefully before purchase.