OUR FREQUENTLY ASKED QUESTIONSFAQ's

What is an open vent boiler?

An open vent boiler is also known as a regular or heat only boiler. The open vent heating system usually comprises of the boiler, a hot water storage cylinder and where required a feed and expansion tank in the loft. Open vent boilers can consistently supply hot water to a number of taps at the same time. They work well if you are replacing an old open vent heating system, and are ideal if water pressure is low in your area. Open vent boilers are also compatible with solar water heating and heat pump systems for a lower carbon footprint and lower energy costs.

ecoTEC plus open vent

Extremely reliable and displaying all the in-built quality Vaillant is known for, the ecoTEC plus is clearly one of the best open vent solutions available today. The ecoTEC plus open vent boiler is available in a range of power outputs to meet the heating requirement of your home. All ecoTEC plus boilers offer low energy consumption and premium components to give outstanding performance.

Key features:

  • ErP A rated boiler with up to 94% efficiency, helping you to reduce your carbon footprint and save money on your fuel bills
  • Highest quality aluminium heat exchanger which is designed for long life and easy maintenance
  • Compact and lightweight for exceptional siting and flexibility, for a kitchen-friendly, stylish design
  • Quality German design and engineering which is manufactured at award-winning UK facilities
  • Six open vent models covering 12, 15, 18, 24, 30 or 35kW heating outputs
  • Compatible with Vaillant’s vSMART™ app based control for heating on the go

 

What is a system boiler?

System boilers need a cylinder to store hot water, but system components are built into the boiler itself, so there is no need for a cold water feed and expansion tank in the loft. System boilers can give a constant supply of hot water to a number of taps at the same time. With no need for a loft tank, system boilers free up space and eliminate worries about leaks or frost damage. They can also work with solar water heating systems and heat pumps, making a great entry into renewable heating solutions.

 

ecoTEC plus system

Extremely reliable and displaying all the in-built quality you’ve come to expect from a Vaillant, the ecoTEC plus is clearly one of the best system solutions available today.

The ecoTEC plus system boiler is available in a range of power outputs to meet the heating requirement of your home. All ecoTEC plus boilers offer low energy consumption and premium components to give outstanding performance. Each one is ultra-quiet, awarded the Quiet Mark for innovative reduced-noise design by the Noise Abatement

Society, and designed for a peaceful home.

Key features:

  • ErP A rated boiler with up to 94% efficiency, helping you to reduce your carbon footprint and save money on your fuel bills
  • Premium quality stainless steel heat exchanger for superior heat transfer and highly efficient performance
  • Compact and lightweight for exceptional siting and flexibility, for a kitchen-friendly, stylish design
  • Quality German design and engineering which is manufactured at award-winning UK facilities
  • Six system models covering 12, 15, 18, 24, 30 or 37kW heating outputs
  • Designed for a peaceful home, the ecoTEC plus is awarded theQuiet Mark for its reduced noise
  • Compatible with Vaillant’s vSMART™ app based control for heating on the go

What is a combi boiler?

’Combi’ is short for combination boiler. This type of boiler heats water as you draw it from the tap and provides central heating. It doesn’t need a cold water feed and expansion tank or a hot water storage cylinder because the boiler is connected directly to the water mains, meaning it only heats water as and when it is needed. As you only have the combi boiler unit in this heating system, it can free up space for conversion, storage and living. Homes that need larger supplies of hot water are usually better suited to a system or open vent boiler with a hot water cylinder.

ecoTEC plus combination

Extremely reliable and displaying all the in-built quality Vaillant is known for, the ecoTEC plus is clearly one of the best combi solutions available today. The ecoTEC plus combi boiler is available in a range of power outputs to meet the heating requirement of your home. All ecoTEC plus boilers offer low energy consumption and premium components to give outstanding performance. Each one is ultra-quiet, awarded the Quiet Mark for innovative reduced-noise design by the Noise Abatement Society, and designed for a peaceful home.

Key features:

  • ErP A rated boiler with up to 94% efficiency, helping you to reduce your carbon footprint and save money on your fuel bills
  • Premium quality stainless steel heat exchanger for superior heat transfer and highly efficient performance
  • Rapid hot water delivery of up to 15.9 litres per minute, heating only the water you require
  • For varying property sizes, ecoTEC plus combi boilers are available in 25, 32, 35 and 38kW heat outputs
  • Quality German design and engineering which is manufactured at award-winning UK facilities
  • Designed for a peaceful home, the ecoTEC plus is awarded the Quiet Mark for its reduced noise
  • Compatible with Vaillant’s vSMART™ app based control for heating on the go

Contact us now to get quote

Contact us now to get quote

Contact Us

0208 858 5310
info@certifiedgasheating.co.uk
London, Essex & Kent
Certified Gas Heating Limited
38 Ormiston Road
Greenwich
London
SE10 0LN

Emergency Numbers

0208 858 5310
07908 239 665
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VAT Registration: 292 7093 77

Certified Gas Heating Limited is a company registered in England and Wales with company number 08267973