Our Heat & Hot Water Cylinders
A better hot water cylinder by design!
Our cylinders are manufactured by 3rd generation hot water cylinder manufacturers’, with heritage and history dating back to 1967. Their manufacturing and engineering team are unrivalled in our industry, their state-of-the-art manufacturing base and processes underpin the lifetime 25-year warranty on our Heat & Hot Water Cylinders.
Our cylinders are manufactured to the highest British Standard EN 12897:2006
You can find further technical and support information about our Heat & Hot Water Cylinders including our range, installation, schematic and downloads further below.
More than a hot water cylinder.
Our Heat & Hot Water cylinders are different from standard hot water cylinders that are only designed, and capable of, providing hot water for bathing, showering & washing.
Like a battery, but storing thermal energy or heat.
Our cylinders are unvented hot water cylinders, with the added ability to be able to provide heating via our patent-protected output coil at the top of the cylinder. Heat & Hot Water Cylinders are not Thermal Stores, although they do store thermal energy or heat.
Our top output only coil.
Heat & Hot Water Cylinders are installed exactly the same way as you would install a standard unvented hot water cylinder.
The controls are intended so that the top output only coil only works between your chosen temperature band, ensuring there will always be enough hot water for the day.
Via the 4-port blending valve & pump, the top output-only coil is to be connected to the heating circuit you want to supplement. The cooler the 4-port Esbe valve is set at, the longer the kWhr’s of use.
WHY INSTALL A HEAT & HOT WATER CYLINDER?
Benefits of our cylinders
Increase or maximise the use of cheaper overnight or flexible electric tariffs
Increase or maximise the use of your Solar PV or Solar Thermal to include some heating instead of just battery storage or hot water
Reduce the runs cycles or run time of your primary & most expensive, component of your heating system
For heating of towel rails or designated areas in your home during the Autumn or Spring time when you don’t want or need much
Use any PV export to help warm your home
Help reduce reliance on or the need for heating fuel deliveries
Back-up heating option when your primary heat source breaks down
Heat & Hot Water Cylinder Range
Technical information on our cylinder range including capacities
2-Coil Cylinders
2-Coil Cylinders complete with Unvented Kit
200 litre with 19L Potable expansion vessel & 22mm Hot & Cold Connections.
Dimensions: 1414mm x 545mm
Comes with 2m2 DN32 Bottom Input Coils & 1m2 DN32 Top Output Coils with 28mm 2-port zone valve for input coil (for when connected to a boiler) & high limit stat.
250 litre with 19L Potable expansion vessel & 22mm Hot & Cold Connections
Dimensions: 1722mm x 545mm
Comes with 2m2 DN32 Bottom Input Coils & 1m2 DN32 Top Output Coils with 28mm 2-port zone valve for input coil (for when connected to a boiler) & high limit stat.
300 litre with 24L Potable expansion vessel & 22mm Hot & Cold Connections
Dimensions: 1945mm x 545mm
Comes with 2m2 DN32 Bottom Input Coils & 1m2 DN32 Top Output Coils with 28mm 2-port zone valve for input coil (for when connected to a boiler) & high limit stat.
400 litre with 24L Potable expansion vessel & 28mm Hot & Cold Connections
Dimensions: 1575mm x 690mm
Comes with 3m2 DN32 Bottom Input Coils & 1m2 DN32 Top Output Coils with 28mm 2-port zone valve for input coil (for when connected to a boiler) & high limit stat.
500 litre with 35L Potable expansion vessel & 28mm Hot & Cold Connections
Dimensions: 1905mm x 690mm
Comes with 3m2 DN32 Bottom Input Coils & 1m2 DN32 Top Output Coils with 28mm 2-port zone valve for input coil (for when connected to a boiler) & high limit stat.
3-Coil Cylinders
3-Coil Cylinders complete with Unvented Kit
250 litre with 19L Potable expansion vessel & 22mm Hot & Cold Connections
Dimensions: 1722mm x 545mm
Comes with 1m2 DN25 Bottom Input Coils (Solar), 2m2 DN32 Middle Input Coils & 1m2 Top Output Coils with 28mm 2-port zone valve for middle input coil (for when connected to a boiler) & high limit stat
300 litre with 24L Potable expansion vessel & 22mm Hot & Cold Connections
Dimensions: 1945mm x 545mm
Comes with 1m2 DN25 Bottom Input Coils (Solar), 2m2 DN32 Middle Input Coils & 1m2 Top Output Coils with 28mm 2-port zone valve for middle input coil (for when connected to a boiler) & high limit stat
400 litre with 24L Potable expansion vessel & 28mm Hot & Cold Connections
Dimensions: 1575mm x 690mm
Comes with 1m2 DN25 Bottom Input Coils (Solar), 2m2 DN32 Middle Input Coils & 1m2 Top Output Coils with 28mm 2-port zone valve for middle input coil (for when connected to a boiler) & high limit stat
500 litre with 35L Potable expansion vessel & 28mm Hot & Cold Connections
Dimensions: 1905mm x 690mm
Comes with 1m2 DN25 Bottom Input Coils (Solar), 2m2 DN32 Middle Input Coils & 1m2 Top Output Coils with 28mm 2-port zone valve for middle input coil (for when connected to a boiler) & high limit stat
All Heat & Hot Water Cylinders also come with:
Esbe VTA323-DN20-35-60 Thermostatic Mixing Valve 35C – 60C for the DHW draw off
Esbe VTG141-20-55 Manually Adjustable 4-way Thermostatic Mixing Valve for blending down the Top Output Only Coil to the required temperature. Please Note : The cooler the set temperature, the longer the kWhr’s supplied to the heating / heated circuit.
Wilo Yonos Pico 15/1-4-130 Pump for the load side of the 4-way blending valve. Pumping to either your Radiator/s, Towel Rail/s or UFH manifold. You will need the appropriate size pump valves.
Pasteurisation
In the UK, all unvented hot water cylinders have to be Pasteurised to help protect against Legionella. Pasteurising at 50C will take around 2 hours to kill any legionella present. Pasteurising to around 60C will kill any legionella present even quicker, however, the higher the temperature the water in the cylinder is taken to, the greater the heat loss, especially if the water isn’t going to be used. With a Heat & Hot Water cylinder, that excess temperature after the Pasteurisation process can then be used to heat a towel rail or two via our Output Only Top Coil.
Guide Mechanical Schematic
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Downloads
Useful information on our Heat & Hot Water Cylinders
Heat & Hot Water Cylinder Pump
Thermostatic Mixing Valve
Mechanical Schematic
Wiring Schematic
Heat & Hot Water Controls
Immersion Heater
Manufacturers Indirect Dual / Triple Coil Cylinders Installation Manual
