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Vaillant’s answer to a high flow combination boiler.
It stores 20 litres of hot water, so is always ready to supply the hot water you need,
when you need it. It has been designed for the larger home in mind,
with two bathrooms and shower room.
slightly different the other Vaillant combinations.
It still comes with the same fixing bracket, that is supplied with there other boilers.
This boiler comes in two parts, the boiler and the water storage section.
Once that bracket is fixed to the wall,
you then fit the back part of the boiler on to the bracket which is the water storage section.
All the valves and pipe connections required are supplied with the boiler.
You can then start to pipe up to the boiler,
The pipe connections once fitted to the
boiler have been designed
so that a standard pipe clip with fit back to the wall.
The hot and cold water pipes are 15 m in size and the gas and flow and return
are all 22 m.
The boiler is very easy to install for the qualified installer.
The Vaillant EcoTEC plus 937 is a 37 kW high-efficiency storage
combination boiler which has been designed especially for larger
Benefiting from the same high quality performance and
efficiency levels you’d expect
from a Vaillant combination boiler,
the Eco TEC plus 937 also features an innovative integrated hot water
storage device at the back of the boiler.
This special feature means the product is capable of delivering up to
20 litres of hot water per minute (significantly
more than could be delivered by a traditional combination boiler),
without the need for you to install a separate
hot water cylinder or cold water tank in the loft.
it’s important to note that the larger the (kW) output you select, the
greater the hot water delivery will be.
This is very important if you have a large family,
we have seen many combination boilers that are too small for the
property they are fitted in.
When asking why they have had a
24Kw installed and not the correct size for the property.
The answer we get is the installer or builder advised us and said its
plenty big enough for the home.
When choosing a combination boiler you need to do
your research and make sure the correct size is fitted.
The most common problem we find is always not enough hot water, or
being only able to run one tap at a time.
The installation of a Vaillant Eco TEC Plus 937 typically takes
between 1-2 days, depending on what
modifications are needed however some time should be allocated for
systems where radiators and pipe work need replacing.
The typical cost of replacing your old combination boiler with a new 937 Plus is
around £2800.00. The costs all depend on what is needed in the installation.
or a 7 year guarantee if you choose to have a Vaillant
Advance installer carry out the work. I know what installer
I would use, an extra 2 years on the warranty taking it up to 7 Years.
The boiler is highly efficient and economical to run with an 89.4% efficiency
rating (SAP 2009) and good for the environment.
Some of the features of this boiler are a built-in 2 stage
frost protection ensures
optimal performance all year round.
Flame lit detection system enables more efficient and quieter combustion and operation.
It has a contoured case and improved control panel design make this compact
When installing this type of system along with weather compensating
controls and an outdoor sensor, you could save up to approximately
£331 on your gas bill per year. By upgrading an old standard gas boiler to this new system
(with weather compensating controls and an outdoor sensor)
you could save in the region of 1,614G of C02/year.
All in all this boiler is one of the best to have
installed in your home if you want a good hot water flow rate.
The size of the boiler is basically the same as Vaillant’s other combination boiler,
the only difference is the depth because it has the water storage section fitted at the back.
so you have many options on where to install this boiler.
The best place to install any combination boiler is in the
old airing cupboard if possible with a vertical flue.
Some installers will not advise this because it normally involves running new supplies to the
boiler. The best advise I can give is to use a Gas Safe engineer who has been in the business for many years.
There are many options for controls, you can fit an internal time clock on the front panel,
even a receiver a wireless room thermostat, plus many more.
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