• Get the best quotes, fast!
  • Over 5,000 engineers across the UK
  • Gas Safe registered engineers

Need a New Boiler?

Get FREE no-obligation quotes now!

  • No delays! Get quotes today
  • Compare quotes & get the best prices
  • Gas Safe & OFTEC registered engineers
 4.8 stars

1,927 reviews

 4.8 stars

1,927 reviews

ATAG I15S 15 kW System Gas Boiler

ATAG I15S 15 kW System Gas Boiler Boiler
Typical Price (inc VAT)
£N/A
Typical installation Cost (inc VAT)*
£500 - £1000
Sundries (Filter, Flue, etc)
£300
Make ATAG
Model I15S 15 kW System Gas Boiler
Is Condensing Condensing
Efficiency Rating 93%
Band Rating A Rated
LPG Compatible Yes
Standard Warranty Up to 14 Years
Central Heating Max. Output 14.7 kW
Mounting Wall Mounted
Flow Rate N/A
Typical Price (inc VAT) £N/A
Typical installation Cost (inc VAT)* £500 - £1000
ERP Rating A Heat

* This is a guide price for a straightforward, like-for-like boiler replacement. Installation costs will vary dependent on work required.

Get your best deal

Quickly compare 3 FREE quotes

  • Quotes from local engineers
  • Get quotes today, installed tomorrow
  • Finance options available
  • Save up to £500 on installation
Get Quotes Now It only takes 30 seconds
0330 808 0405
Call us to get quotes

We will get you the best deal!

0330 808 0405
4.7/5 out of 26,466 reviews

1,8 million quotes provided in 10 years

Product Description

The IS15 System gas boiler is a compact and highly efficient unit which has been designed and manufactured by ATAG as a wall mounted unit. With compact dimensions of just 700x440x355mm (H x W x D) it should fit neatly into any home or even a kitchen cupboard so you can keep it tucked away out of sight.

This unit has an output rating of 15kW which is ideal for small, one bathroom homes with not such a high demand for heating or hot water. If your home is larger you can choose a higher output from the range which goes up to 40kW. The boiler delivers an impressive A rated efficiency of 89.8% which could help to save you money on your heating bills and lower your home’s carbon emissions.

As a System boiler it will produce hot water for your central heating and for your hot water storage cylinder such as the ATAG iSteel hot water tank. The pump has been built into the boiler to ensure heat loss is kept to a minimum and improve energy efficiency even further. Included in this model is the unique iCon heat exchanger which has a lifetime replacement guarantee.

Available with a 10 year warranty you'll be well covered by ATAG after the installation and even more so if you meet the terms for a 14 year warranty. To get a 14 year warranty, the boiler must be installed with an Adey Atom filter, ONEZone smart controller and ATAG water treatment pack

Get your best deal

Quickly compare 3 FREE quotes

  • Quotes from local engineers
  • Get quotes today, installed tomorrow
  • Finance options available
  • Save up to £500 on installation
Get Quotes Now It only takes 30 seconds
0330 808 0405
Call us to get quotes

We will get you the best deal!

0330 808 0405
4.7/5 out of 26,466 reviews

1,8 million quotes provided in 10 years

Need a new boiler?

Get FREE no-obligation quotes now!

Excellent 4.8 out of 5

Find approved boiler engineers
in your area.

Begin your search by entering your postcode below.

Or select your region from the list and start your search