Fixed price boiler installation's

ATAG iC Economiser 27 fully installed combi boiler with 10 years warranty


5.00 out of 5

The ATAG iC Economiser 27 is an innovative 31kW combination boiler, with an impressive flow rate of 12.6 l/m @35°C. Designed with efficiency in mind, the built-in Passive Flue Gas Heat Recovery Device (PFGHRD) helps reduce gas consumption, working alongside the inbuilt weather compensator to deliver the most efficient Economiser range in Europe.

ATAG One Controller


  • Available Options

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Key Features

  • Innovative built-in gas heat recovery technology helps to cut your home’s gas consumption
  • Exceptional energy saving performance is the best in Europe
  • Save in excess of £40 per year on hot water production
  • Sleek, compact design – perfect for properties with limited space
  • Lower cost of ownership – helping cut your heating bills
  • Features the in-built weather compensator – ensuring your boiler adapts to outside weather
  • Fully compatible with ATAG iSol solar range
  • Compatible with the smart ONE controller – taking the hassle out of heating your home
  • A solution to suit all – ATAG’s Economiser range consists of three boilers, Economiser 27, 35 & 39, producing impressive flow rates from 12.6 l/m to 17 l/m @ 35°C
  • 27kw has the same flow rate as a standard 32kw combi boiler!
  • 10 years parts and labour warranty
  • **Available in LPG, Please call or Email before ordering as this needs to be set at factory and will cost slightly extra**
  • Life time guarantee and main heat exchanger


User Instructions

Technical Spec

ATAG iC Economiser 27
Part Number BE200127
ErP Seasonal space heating energy efficiency class A
ErP Seasonal space heating energy efficiency (%) 94
ErP Water heating energy efficiency class A
ErP Water heating energy efficiency (%) 94
Erp Declared load profile DHW XXL
DHW input kW 29.7
CH output kW (50/30ºC) 23.2
Flow rate @ 35°C rise l/min 12.6
SEDBUK 2009 (%) 89.7
Dimensions (H x W x D) mm 700x440x355
Boiler lift weight with jig Kg 43
Standard guarantee (years) 7
Additional year warranty available from 8 – 10 years 1, 2 or 3
LPG available Yes
Solar compatible Yes
NOx class 5
Ingress Protection (IP) IPX4D
Maximum equivalent horizontal flue length (m) 13
Maximum equivalent vertical flue length (m) 13


2 reviews for ATAG iC Economiser 27 fully installed combi boiler with 10 years warranty

  1. Rated 5 out of 5

    Harold j Hickman

    We did our research on boilers and choose to have a ATAG boiler. We found 2 installers close to us and got quotations from them both, upon reading more about ATAG boilers we come across online boiler shop who’s prices was upfront and clear, and cheaper than the 2 other quotes, we got them to come out and they sent us a quote for the same cost as the online price. Very happy we found this shop, The lads from AJ CLIFF was very professional and did a very good job. We will be recommending them.

  2. Rated 5 out of 5

    John Allen

    Can not fault this boiler, so quite you can tell if its working ir not, water flow is very good on hot too.

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