Is the Vaillant EcoTEC Plus 615 a standard, combi or system boiler?

If you’re looking for a system boiler for your house or flat, then the Vaillant EcoTEC Plus 615 is one you may wish to consider.

If you choose a system boiler, you'll have to find somewhere to install a hot water cylinder too - they're normally located in an airing or landing cupboard. However, unlike regular boilers, they do not require a cold water tank to be fitted in the attic, making them suitable for homes with limited or no roof space or if you're planning a loft conversion in the future.

System boilers distribute the hot water to your taps and radiators using (often built-in) circulation pumps and are easier to install from scratch since they have one less component (the water tank) to consider.

System boilers also require programming to produce heat and hot water, so they cannot produce this instantly. Nonetheless, the cylinder keeps water hot for use later, so you don't have to wait as long as you set your timer and keep it on long enough to heat enough water.

Should I install a Vaillant EcoTEC Plus 615 system boiler in my home?

Whether this Vaillant ecoTEC Plus 615 System boiler is right for where you live depends on its size or "output" level. Size does not mean its physical dimensions - it means how powerful it is.

The output level of a boiler tells you how much power it has to heat the water coming from your taps and warming up your radiators. The higher the output level, the greater the volume of water it can heat up.

If the output (measured in kilowatts) is too high, you'll pay higher gas bills and your water will be piping hot. Too low and the water coming out of your taps and being fed into your radiators will often be lukewarm.

The Vaillant EcoTEC Plus 615 system outputs at a maximum of 15 kW, so which types of property would this Vaillant ecoTEC Plus 615 System boiler be appropriate for?

An experienced boiler engineer would recommend that this Vaillant ecoTEC Plus 615 System boiler would be a suitable installation choice for smaller homes and apartments with up to 10 radiators and one bathroom.

Where will the Vaillant EcoTEC Plus 615 fit in my house?

The Vaillant EcoTEC Plus 615 measures 720 mm in height and has a width of 440 mm and a depth of 338 mm.

Is the Vaillant EcoTEC Plus 615 a non-condensing or condensing boiler?

Condensing gas boilers like the Vaillant EcoTEC Plus 615 are environmentally friendlier and cheaper to run so, if possible, we strongly recommend that you choose this or one of the very latest models.

Condensing boilers are much more efficient and economical to run because they contain a secondary heat exchanger that captures and recycles the warmth still present in the flue exhaust gases and the water vapour condensation for re-use, meaning that they use less gas to run.

How energy efficient is the Vaillant EcoTEC Plus 615 system boiler?

As the British public has become more conscious of climate change, many homeowners consider the environment when choosing how to heat their homes.

The power we need for our central heating systems accounts for around 14% of the UK’s greenhouse gas production. There are often dangerous levels of ambient nitrogen dioxide gases in the atmospheres of British cities because of our use of gas boilers.

Would installing a Vaillant EcoTEC Plus 615 system boiler in your home be a green choice? Let's look at the numbers.

Boilers manufactured and installed in the UK are assigned energy efficiency ratings following testing to an agreed set of standards. These scores indicate how much energy the boiler uses and how much goes to waste when it's in operation.

By law, boilers must achieve a SEDBUK rating of "A" subject to achieving a minimum of 92% energy efficiency. Prior to April 2018, the minimum was 88% (88% and 89% on the SEDBUK are graded "B" and 90% and above is graded "A").

The Vaillant EcoTEC Plus 615 was awarded an efficiency rating of 93% with a SEDBUK band rating of "A".

The Energy Related Products Directive intends to encourage all manufacturers to reduce harmful gas emissions connected to the products they make, from the manufacturing stage to final disposal, including when they are in active use.

The Vaillant EcoTEC Plus 615 has an ERP rating of "A".

Is this Vaillant EcoTEC Plus 615 system covered by a warranty?

The manufacturer offers a parts and labour warranty of 5 years on the Vaillant EcoTEC Plus 615 boiler to new customers.