Baxi Solarflo Brochure

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SOLARFLO

Solar thermal domestic hot water system

www.baxi.co.uk

Introduction to Baxi

Innovators in heating technology

For over 150 years, Baxi has led the way with new and pioneering
heating solutions. We are proud that we still manufacture boilers in
the UK, close to the site where Richard Baxendale first established the
business, in Preston, Lancashire.

Today, our dedication to innovation is greater
than ever as we develop new ways to heat
homes. We are committed to delivering
sustainable heating and hot water solutions
that minimise energy usage, cut carbon
emissions and deliver maximum value for you
and your customers.

Above all, we want to be at the heart of the
home, bring warmth to people’s lives and
protect the planet for future generations.

All our products are backed by heateam, our award-winning dedicated UK service centre and a
national network of 270 Gas Safe registered engineers, who are on hand to offer expert help and
advice.

Here are just some of the many heating solutions
we offer that can be tailored to suit your needs:

• High efficiency boilers

• Solar energy

• Ground source heat pumps

• Micro-CHP technology

• Biomass solutions

• Vented and unvented cylinders

• Flue gas heat recovery systems

1

What is Solar?

Everywhere we look we are being urged to consider energy efficient options for our homes. As
customers become more ‘green’ and governments encourage the use of renewable energy sources,
solar energy is becoming more popular and the demand for it is increasing.

Solar energy in the UK

The Sun has been heating our bodies and drying our clothes for thousands of years but here in
the UK we have not been using its potential to provide us with hot water. This begs the question
would solar power work here? The fact is, solar power is greater than most people imagine with
enough energy hitting the earth in one minute to meet our demands for a whole year – if only we
could harness it properly. The technology in a Baxi Solarflo™ system can utilise enough solar power
to effectively heat 90% of a family’s hot water in the summer and an average of around 55% of it
annually making the investment into solar hot water systems worthwhile.

Why use Solar?

Savings for customers mean opportunities for installers

Real savings can be made over the medium to long term when homeowners switch to renewable
energy sources. As the world’s supply of gas diminishes, we must use this resource more efficiently
and find other ways of meeting our hot water requirements. A Baxi Solarflo™ system gives customers
a sustainable energy source which is free and natural, so it’s becoming an attractive addition for
customers and developers with an eye on the future. Thanks to the superb design and the training we
offer, Baxi Solarflo™ systems are also easy for installers to fit.

2

How does it work?

Solar thermal water heating devices make use of
free energy from the most abundant source we
have – the Sun

Flat plate collector panels or evacuated tubes, either fitted onto existing
roofs or built into the roof structure of new build properties, absorb energy
from the Sun and heat water in a specially designed water storage cylinder

such as the Megaflo Eco Solar® or the Megalife Solar® from Heatrae Sadia.

In the summer, this system can supply up to 90% of a home’s hot water
and even on dull days some hot water can be produced. Over the year, a
well designed solar package provides approximately 55% of the annual
domestic hot water demand, and can substantially reduce
carbon emissions.

Solar collector panel

How Baxi SolarfloTM works

The collector panels work by
transferring heat into a fluid
that is circulated to a solar coil
in the base of the hot water
storage cylinder. Here, the
heat is transferred into the
stored domestic hot water. The
cooled fluid is then circulated
back to the solar collectors to
be re-heated, and the cycle is
repeated.

3

Hydraulic pump
station and
solar controller

Baxi Megaflo

System Compact GA

Domestic
hot water

Megaflo Eco Solar® Cylinder

Baxi Solarflo™ key features & benefits:

• On-roof, in-roof and flat roof portrait or

landscape solar collector panel packages
available (1, 2 or 3 panels) to enable
installation to most roof styles

• Evacuated tube packages also available

(20 or 30 tubes)

• Provides approximately 55% of a home’s

annual domestic hot water needs

• The package consists of solar collector

panel(s), a hydraulic pump station, controller
and all the components required for safe
operation

• Compatible with Heatrae Sadia’s Megaflo Eco

solar range of cylinders

• Control of boiler hot water schedule to

maximise solar efficiency

• Compatible with majority of existing UK

heating systems

• 150mm lead skirt on in-roof flashing to aid

fitting to any tile profile

• Quick fit brackets supplied for on-roof kit to

aid speedy installation

• Tool free hydraulic fittings to aid speedy

installation and less time spent on the roof

• 3.2mm tempered low Iron glass cover to

aid absorption of solar irradiation in cloudy
conditions to improve efficiency

• 10 year warranty*

• SAP compliant** and MCS certified

* Subject to registration and an annual service.
** If maximum property size is not exceeded.

ON-ROOF IN-ROOF EVACUATED TUBES

4

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Types of Solarflo

Introducing a complete range of panel options to meet individual needs, tastes and requirements. Baxi solar panels are high

quality. They carry the Solar Keymark certification are MCS certified and are suitable for a range of different installations

including on-roof, in-roof or flat roof applications with portrait or landscape collector options to effectively and efficiently
harness natural energy from the Sun.

Features

Flat plate aluminium frame collector

•

MCS certified collector range

•

Solar Keymark certified

•

10 year warranty*

•

Portrait or landscape options

•

Tool-free collector hydraulic connections

•

Ultrasonic welded to withstand high temperatures

•

Fast fit roof brackets

•

collectors

2.0m2 Collectors

2.0m² 1,2 & 3 portrait or landscape collectors - on-roof, in-roof or A-frame.

Portrait Collectors
Performance 2.0m

Aperture Area 1.89m2

Opitical efficiency h0 0.794

Heat loss co-efficient a1 4.31W/m2K

Heat loss co-efficient a2 0.012W/m2K

2

Landscape Collectors
Performance 2.0m

Aperture Area 1.89m2

Opitical efficiency h0 0.801

Heat loss co-efficient a1 3.81W/m2K

Heat loss co-efficient a2 0.018W/m2K

2

Technical Data

Gross area 2.01m

Height 1753mm

Width 1147mm

Depth 87mm

Weight 34.3kg

Maximum pressure 10bar

Shutdown temperature 213°C

2

Technical Data

Gross area 2.01m

Height 1147mm

Width 1753mm

Depth 87mm

Weight 35kg

Maximum pressure 10bar

Shutdown temperature 211°C

2

2.5m2 Collectors

2.5m² 1 or 2 portrait collectors - in-roof only.

Portrait Collectors
Performance 2.5m

Aperture Area 2.37m2

Opitical efficiency h0 0.814

Heat loss co-efficient a1 3.639W/m2K

Heat loss co-efficient a2 0.009W/m2K

5

2

Technical Data

Gross area 2.51m

Height 2187mm

Width 1147mm

Depth 87mm

Weight 47kg

Maximum pressure 10bar

Shutdown temperature 198.1°C

2

* Subject to registration and an annual service.