Remeha Avanta Plus Hot Water Cylinder Folleto

OVERVIEW

OVERVIEW

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60% of the buildings that will be standing in 2050 are 
already here with us today. So tomorrow, there will be a 
great need for intelligent heating technology specifically 
designed for refurbished buildings. This is where Remeha’s 
advanced thinking is leading the way. To a future where our 
highly efficient heating systems help to improve the overall 
energy efficiency of refurbished buildings. Giving them new 
life and a more sustainable future.

Remeha is committed to helping create a more 
sustainable future with our comprehensive range of 
energy-efficient, low-carbon heating solutions. Our 
superior quality, British-manufactured hot water cylinder 
range offers 24 options of Unvented Direct, Indirect 
and Solar cylinders with 400l, 500l, 800l, 1000l, 1250l, 
2000l and 2500l models available in each of the three 
categories. A range of optional immersion heater units is 
also available to provide boost and backup.

Remeha Commercial cylinders are manufactured from Duplex 
2205 stainless steel to EN 1.4462, ASTM S3 2205/S31803 (with 
PRE value of 35). This Ferritic-Austenitic steel combines high 
strength, excellent corrosion resistance and stress corrosion 
cracking resistance as well as excellent pitting resistance. 
This marine-grade Duplex gives a low thermal expansion and 
high chloride resistance. It has a great strength-to-weight 
ratio which allows the finished cylinder to be substantially 
lower than other materials.

2205 is a high specification grade of Duplex stainless steel, 
making it highly suitable for commercial water cylinders. 2205 
has approximately twice the proof strength of standard 304 
and 316 types of stainless steel, meaning it is well equipped 
to deal with the system pressures involved. The pitting and 
crevice corrosion resistance in potable water is greater than 
that of 316 stainless and other leaner alloyed Duplex stainless 
types often used in water cylinders. End users can therefore 
be assured of a long trouble-free service life.

The Duplex metallurgical structure is carefully balanced to 
provide dual austenitic and ferritic phases, which provides  
the high strength level and acts as an effective impediment  
to stress corrosion and cracking. 

Remeha Commercial cylinders come with a 6 bar 
operating pressure as standard. The design options 
being maximised by this choice.

* Depending on incoming cold water temperature and primary flow conditions.

Pressure Equipment Directive 97/23/EC.
Low Voltage Directive (LVD) 2006/95/EC.
Electromagnetic Compatibility (EMC) Directive 2004/1 08/EC.
Ecodesign Requirements for Energy Related Products (ERP) Directive 

2009/125/EC.

Building Regulations Part G and Part L (England and Wales).
Scottish Building Standards Section 4 and Section 6.
Building Regulations (Northern Ireland) Parts F1 and F2 and Part P.
Water Supply (Water Fittings) Regulations (England and Wales).
The Water Byelaws 2004 Scotland.
Water Supply (Water Fittings) Regulations (Northern Ireland).

Relevant clauses of the following standards are complied with: 

EN 12897, EN 60335-2-21.
The stainless steel materials used comply with the relevant 

clauses of: EN 10088.

BS EN 1490 Building Valves – Combined Temperature and 

Pressure Relief Valves.
BS EN 1491 Building Valves – Expansion Valves.
BS 6144 Specification for Expansion Vessels Using An Internal 

Diaphragm For Unvented Water Supply Systems.
BS EN 1567 Building Valves – Water Pressure Reducing Valves and 

Combination Reducing Valves.
BS EN 60730-2-9 Automatic Electrical Controls – Particular 

Requirements for Temperature Sensing Controls.
BS EN 60730-2-8 Automatic Electrical Controls – Particular 

Requirements for Electrically Operated Water Valves.
BS EN 13959 Anti-pollution Check Valves.

Health and Safety Executive Approved Code of Practice L8: The control of 

legionella bacteria in water systems.
BS EN 806 Parts 1 to 5: Specification for installations inside buildings 

conveying water for human consumption.
BS 8558 Guide to the design, installation, testing and maintenance of 

services supplying water for domestic use within buildings.
Chartered Institute of Building Services Engineers Guide B and Guide F.
Manufactured in a factory approved to: 

BS EN ISO 9001 · OHSAS 18001 · ISO 14001

•  It is the responsibility of us all to consider the safety of 

others when designing and installing hot water systems. 

Advice on doing so is contained in HSE document L8,  

this advice is heavily detailed and precise

•  Essentially, it is recommended that any cylinder should 

have access for inspection and cleaning, a system of 

pasteurisation and where possible dead legs in the system 

are designed out

•   Remeha Commercial provides features which meet  

these needs.

•  A minimum of two inspection ports (three on larger models)
•   Three optional destratification loop kits (shunt pumps) 

are available to circulate the hot water from top to bottom 

to enable pasteurisation

20°C and below 

Legionella bacteria are dormant

20°C to 45°C 

Legionella bacteria multiply

55°C 

Legionella bacteria die in five to six hours

60°C 

Legionella bacteria die in 32 minutes

66°C 

Legionella bacteria die in two minutes

Above 70°C 

Disinfection taking place

Remeha Commercial range.
•  The Remeha Commercial range of cylinders are insulated 

with 100mm of polyurethane foam of initial K-value 0.024 

W/m.k, flammability to BS 4735

•  The foam is applied to all surfaces of the cylinder including 

around the legs and the lifting lugs at the top

and certified.
Typically calorifiers are made to British and European 

manufacturing standards. These units are generally 

bespoke and essentially one-off, the performance 

is not tested or qualified by any third party. Claims 

made for performance will be based on calculations 

rather than testing.
That is not the case with Remeha Commercial 

cylinders. The range has been tested by Kiwa and 

Nemko for safety and performance. They are built 

entirely in a purpose-designed manufacturing facility 

in the UK.

Flow rates are crucial to today’s 

hot water specifiers

We have all been in a hotel where the shower does not 
perform and we have to run around to get wet. Why? Because 
the hot water system was not designed correctly. Today this 
all changes with Remeha Commercial, typically massive flow 
rates in excess of 100 litres/min can be achieved. If you have 
higher than that coming in, the cylinder will deliver that too.

Heat recovery in minutes, not hours

Remeha Commercial cylinders are designed in such a way 
that if provided with the prescribed heat input, the units 
will recover from cold in less than 60* minutes. This is done by 
the inclusion of super high performance coils or commercial 
electrical elements.

Remeha Hot Water Cylinders are approved and certified by a 
third party for safety and performance and manufactured in 
the UK.

Remeha’s range of Hot Water Cylinders meets all British environmental legislation and regulation standards 
as well as EU Directives. This includes the recommendations of HSE Document L8 relating to Legionella 
Pneumophilia, with the cylinders containing a minimum of two inspection ports (three on larger models) and 
three optional destratification loop kits to circulate the hot water and enable pasteurisation.