The ATAG i35C Plus is a premium combi boiler that delivers impressive 94% efficiency and robust 16.1 l/min flow rate – perfect for medium to large homes with multiple bathrooms. You'll appreciate its compact size and smart features like built-in weather compensation, which help maintain its A-rating for both heating and hot water. While it's pricier at £2,098 (excluding installation), the extendable 14-year warranty and lifetime heat exchanger guarantee make it a solid long-term investment. Let's explore what makes this powerhouse worth considering.
Key Takeaways
- ATAG i35C Plus costs £2,098 (excluding installation), with total installed costs ranging between £2,598 to £3,098 including labour.
- The boiler delivers exceptional efficiency at 94% with a powerful 35kW heating output and 16.1 l/min flow rate.
- Comes with an extensive 10-year warranty (extendable to 14 years) and lifetime guarantee on the stainless steel heat exchanger.
- Features built-in weather compensation and Economiser technology for optimal energy savings and consistent performance.
- Ideal for medium to large homes, though higher price point and specialised installation requirements may not suit smaller properties.
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ATAG i35C Plus Combi Boiler Overview
The ATAG i35C Plus combi boiler stands as a powerhouse of home heating, packing 35kW of output into its surprisingly compact frame.
You'll find it's perfectly sized at 700x440x355mm, making it a neat fit for most kitchen cupboards.
What makes this boiler special? Let's break down its standout features:
- An impressive flow rate of 16.1 l/min, perfect for running multiple showers
- Built-in weather compensator that automatically adjusts for efficiency
- ErP A-rating for both heating and hot water, keeping your bills low
- Passive flue gas heat recovery device for extra energy savings
You're getting modern convenience with this unit's smart controller compatibility and LPG conversion options.
The 10-year warranty (extendable to 14 years) shows ATAG's confidence in their product's reliability.
ATAG i35C Plus Combi Boiler Performance and Efficiency
When it comes to raw performance, you'll find the ATAG i35C Plus combi boiler punches well above its weight class. With 35 kW output for heating and 40.3 kW for hot water, it'll easily handle your medium to large home's demands.
You'll love its impressive 94% efficiency rating and A-rating for both heating and hot water. Plus, you can boost it to A+ by adding the ATAG ONE controller – your energy bills will thank you!
| Feature | Specification |
|---|---|
| Heating Output | 35 kW |
| Hot Water Output | 40.3 kW |
| Flow Rate | 16.1 L/min |
| Efficiency | 94% |
The built-in Economiser technology recycles flue gases, while the weather compensation feature comes standard. With a flow rate of 16.1 litres per minute, you won't have to worry about running out of hot water – even with multiple taps running.
ATAG i35C Plus Combi Boiler Pros and Cons
Now that you understand the impressive performance specs, let's weigh up what makes the ATAG i35C Plus shine – and where it might fall short for some homeowners.
The i35C Plus packs some serious advantages, like its remarkable 94% efficiency rating and generous warranty of up to 14 years. You'll also appreciate its space-saving dimensions and robust 16.1 l/min flow rate that'll keep your showers steamy.
However, there are some drawbacks to ponder:
- The price tag might make your wallet wince
- You'll need to find an ATAG-certified installer (they're not as common as other brands)
- It could be overkill for smaller homes
- Maintenance costs might run higher than standard combis
The good news? The lifetime guarantee on that fancy stainless steel heat exchanger helps offset some of those initial costs.
How Does The ATAG i35C Plus Combi Boiler Compare To Similar Models From Other Manufacturers?
Looking to see how the ATAG i35C Plus stacks up against its rivals? When compared to similar 35kW combi boilers from leading manufacturers, the ATAG holds its own quite impressively.
With a hot water flow rate of 16.1 l/min, it outperforms the Worcester Bosch Greenstar 8000 Style (14.3 l/min) and Vaillant ecoTEC Plus (14.4 l/min). Only the Viessmann Vitodens 200-W edges slightly ahead at 16.4 l/min.
The ATAG's 94% efficiency matches most competitors, though the Viessmann leads at 98%.
Where the ATAG really shines is its warranty – offering up to 14 years compared to 10-12 years from other brands.
You'll also appreciate its compact size and smart control compatibility through the ATAG ONE controller, making it a strong contender in the premium boiler market.
For homeowners seeking a replacement boiler, the ATAG i35C Plus is an excellent upgrade from older conventional boiler systems due to its superior efficiency and modern features.
How Much Does A ATAG i35C Plus Combi Boiler Cost?
Wondering about the price tag on the ATAG i35C Plus combi boiler?
You'll need to budget £2,098 for the unit itself, which includes VAT but not installation costs. While it's positioned in the premium price range, you're paying for advanced features and superior efficiency.
For a complete installation, you'll want to factor in these essential costs:
- Standard installation: £500-£1,000
- Required sundries (filter, flue): Around £300
- Potential system upgrades if needed
- Smart controls or thermostat additions
The total package typically runs between £2,598 and £3,098, depending on your specific requirements.
You can explore cost-saving options through finance deals or installer package offers.
Don't forget to compare quotes from multiple Gas Safe engineers – it's worth shopping around for the best deal.
ATAG i35C Plus Combi Boiler Warranty and Service Support
When it comes to protecting your investment, ATAG stands out with an impressive 12-year standard warranty on their i35C Plus combi boiler.
You'll also get a lifetime guarantee on the heat exchanger, with the option to extend coverage up to 18 years through their Complete Care Pack.
To keep your warranty valid, you'll need annual servicing by a Gas Safe registered engineer.
ATAG makes this easy with their Monday to Friday helpline and 24/7 emergency support when you need it most.
Their dedicated after-care team knows the i35C Plus inside and out, and you can access troubleshooting tips and product manuals online anytime.
For extra peace of mind, ATAG's Technical Service Desk is ready to help with any questions, and they'll connect you with trusted partners for installation and maintenance.
Final Verdict
Based on our thorough analysis, the ATAG i35C Plus stands as a top-tier combi boiler that's worth every penny. Its impressive 94% efficiency rating and advanced features make it a smart choice for modern homes.
Here's why you'll love this boiler:
- You'll save up to £320 yearly on gas bills thanks to its Economiser technology.
- The compact size means it'll fit neatly in your kitchen cupboard.
- You're getting instant hot water with the pre-heat facility.
- The lifetime guarantee on the iCon heat exchanger gives you peace of mind.
If you're looking for a reliable, efficient boiler that'll keep your home cosy without breaking the bank, the i35C Plus delivers.
It's like having a silent workhorse in your home – quietly doing its job while keeping your energy bills in check.
Get Up To 3 Free Quotes For Your New Boiler
Now that you've decided on the ATAG i35C Plus, you'll want to find the best deal and most qualified installer for your new boiler.
Getting multiple quotes is essential for making an informed decision and potentially saving hundreds of pounds.
You can easily get up to three free quotes from Gas Safe registered engineers through our comparison service. Simply fill out a quick form with details like your property size, number of radiators, and preferred installation timeframe.
When evaluating the quotes, don't just focus on price. Look for extensive warranties, aftercare services, and verified credentials.
Remember to check customer reviews and ask about any additional costs that mightn't be immediately obvious.
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