iC Combination
High efficiency boilers
Our combination boilers come in a range of sizes designed to suit all needs, from a small flat to a large family home, and are renowned for their efficiency.
Key features and benefits
Compact and quiet, an iC combination boiler will fit neatly into the heart of your home. This makes it a perfect choice if you have limited space, or if you want to free up space currently allocated to a hot water cylinder.
ATAG iC Combination High efficiency boilers
• 18 years peace of mind without the need of pricey breakdown cover, with the Complete Care Pack, includes smart controls, system cleaners and a filter to ensure your system remains efficient and reliable for longer, saving you up to £300(1)
• Advanced flow control technology for ultimate energy efficiency
• 12 years as standard, with the option to upgrade to an industry leading 18 years
• Control the system easily via a smartphone or tablet using the app for ATAG One Zone or Tadoº smart thermostat
• Lifetime guarantee on the ATAG iCon stainless steel heat exchanger(2)
• OpenTherm compatible: OpenTherm technology allows the boiler to operate at maximum efficiency while keeping your home warm and cosy
• Weather compensator included which allows the boiler to run at optimum, resulting in maximum heating efficiencies
• Boiler Plus compliant(3)
(1) Save a further £300 on boiler cover. (2) Heat exchanger lifetime guarantee - subject to terms & conditions. (3) Boiler Plus compliant when installed with ATAG One Zone, ATAG Programmable
Room Stat, Tadoº or weather compensator. Visit our website for the terms & conditions atagheating.co.uk/termsandconditions
Save Energy, Cut Bills, and Reduce Emissions
Replacing your old, inefficient boiler with a new A-rated model could save up to £400 per year on energy bills. Viola Energy helps homeowners upgrade to greener heating solutions that perform better, last longer, and lower your carbon footprint.
We only fit boilers with advanced efficiency technology, helping you enjoy reliable warmth while using less gas — good for your home and the planet.
Lower energy bills
Reduced carbon emissions
Quieter operation
Compact, space-saving designs
Trusted Local Installers with 20+ Years’ Experience
We’re proud to be a small, independent business serving Prescot and the North West. Our customers choose Viola Energy because we combine local reliability with industry expertise — offering personal service, honest pricing, and long-term peace of mind.
What sets us apart:
Gas Safe & NAPIT certified engineers
2-year workmanship warranty
Up to 18-year manufacturer-backed guarantees
Finance options available through Kanda
Fully insured and accredited
Free advice and no-obligation quotes
Supplying the Most Reliable Choice For Your Home
Buying a new boiler is a considerable investment and you need to be sure it’s going to keep you warm for years to come. That’s why all ATAG boilers come with 12 year warranty as standard with the option to extend to 18 years.
ATAG boilers are renowned for their reliability, cost-effectiveness, and ability to keep homes warm and cozy.
Upgrading to an ATAG boiler can result in savings on heating bills, and industry-leading warranties ensure that if the boiler breaks down, repairs are covered at no cost for up to 18 years. These boilers combine engineering excellence with high-quality materials, making them durable and highly efficient. Moreover, they are designed to maintain their efficiency throughout their lifespan, providing ongoing savings year after year.
ATAG also prioritises environmental responsibility. Their highly efficient boilers help reduce carbon emissions, and the latest range is designed to operate using a blend of natural gas and hydrogen, further minimising environmental impact. Additionally, 95% of ATAG’s boiler packaging is recyclable.
