Fischer Aqua thermal store water heating systems utilise off-peak/on-peak electricity and providing mains pressure hot water.

Fischer Aqua is a thermal store water heating system that outputs hot water when you need it.

The Aqua uses incoming mains pressure water which is heated by conduction. The mains pressure water comes into contact with the stored water as it flows through a multi-coil heat exchanger for improved heat transfer.


  • Automatically Controlled

  • Quick and Easy to Install

  • Five Year Guarantee*

  • Reduce Energy Wastage

Call us on freephone

0800 103 2712

to discuss your heating requirements

Eliminate wastage and save money with Fischer thermal store water heaters

Fischer Aqua thermal store water cylinders are made in Great Britain and manufactured under ISO9001 Quality Management System – as audited by BSI (British Standards Institution).

We decided to join a highly experience cylinder manufacturing company to create a water heating solution suited for British homes. The Aqua thermal store has been designed with your home in mind, guaranteeing the required hot water supply for your homes needs. Keeping manufacturing on home soil allows us to give you a plumbing guarantee that is second to none. All our plumbers have been trained to the highest level to make installation an easy and stress free process.

Manufactured in Britain

Manufactured from copper, the Aqua cylinder has a high resistance to corrosion. Each copper cylinder comes with parts and components that are made from stainless steel for improved durability. What’s more, each Aqua is issued with 500ml inhibitor that can help reduce the risk of corrosion when added.

Fischer Aqua thermal store comes with a five year guarantee on the actual cylinder, with *one year on electrical components.

Each Fischer Aqua comes with a low loss header tank that is integrated into the system. It is a fully automatic self-filling cylinder that has ‘set and forget’ capabilities

Each Aqua comes with two 3kW immersion elements. This allows the Aqua to be used on economy 7 with day time boost capabilities or on flat rate tariff, giving you complete flexibility.

Available in a range of sizes† to suit different homes with specific water heating requirements. They are also Solar PV compatible for greater economical and environmental benefits.

†Fischer Aqua is available in slimline versions for smaller homes
Self-filling (Automatic) or manual header tank available

Also Available…

Fischer Future Heat can also install direct vented and direct unvented cylinders for customers that would like an alternative water heating system fitted. Please note that all direct unvented cylinders do require annual servicing, unlike the Aqua thermal store which is maintenance free.

Excellent service & products. We are really pleased with the heating & water systems provided & installed. Excellent value for money.
Mrs Bright, Gwynedd

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0% APR

Available on all heating systems†

Patented 40mm Clay Core

Exclusive to Fischer storage heaters

Customer Reviews

Fischer are rated 9.3 out of 10

Eight reasons why

Fischer Future Heat Heaters

As standard all Fischer heaters come with:

High Quality German Engineering

All Fischer Heaters are manufactured by our Master Craftsmen in Germany.

Controllable Heating System

Set each room to the temperature you want with our individual wireless thermostats.

Slimline, Low Input Smart Heaters

Run on as little as 1.9kW PER HOUR.

Exclusive 40mm Clay Core

Patented and designed with comfort and efficiency in mind.

Complete Heating Guarantee

If our heater does not heat your room to 21°C we’ll replace it free of charge. This Guarantee is valid for 12 months from date of order.

10yr Guarantee Manufacture Direct

Enjoy peace of mind with our 10 year manufacturers Guarantee. Guarantees/warranties are not insurance backed

Request a free heating survey

How can a home survey help?

An incorrect sized storage heater will cost you more as it would need to stay on longer to reach the desired temperature in your room, this could cost you £’s on your electricity bills! Our survey is designed to save you money by only installing the radiators which are best suited to your home.

Take advantage of our free, no obligation heating survey and find out how much you could save.

What our customers have to say

Need help? Call us now on freephone 0800 103 2712.