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Hot Water Services

Plumb Thermals can install all types of hot water cylinders and service and maintain hot water systems. We can design & install  a new hot water system, if this is what is required. Past projects have been both large and small scale installations. Sometimes a hot water cylinder is not needed, and it may be more beneficial to have either a single point or multipoint hot water heater.  Give us a call if you are not sure which type of hot water system or hot water cylinder your require and talk to an experienced engineer.  


  • Hot water cylinder installation – Unvented – Vented – Indirect – Direct – Buffer
  • Servicing for all hot water cylinders
  • Repair hot water cylinder
  • Hot water heater installation – multipoint & single point
  • Plumbing & Heating Services


Unvented Hot Water Cylinder Installation

Unvented cylinders are covered by Building Regulation Part G, where stored water capacity exceeds 15 litres. and provide hot water at mains pressure to your hot water taps. Plumb Thermals are qualified under G3 to install, modify or service your unvented hot water cylinder.


Hot Water Cylinders

Advantages & Disadvantages

Unvented Hot Water Cylinder

Unvented cylinders main advantage is the provision of mains pressure hot water throughout the house without the cost of booster pumps nor the requirement for a cold water tank to be sited above the highest hot water outlet, eg an upstairs shower head. By bringing the cold supply from the combination valve you can also ensure a balanced pressure in the hot and cold supply throughout the house. 

The disadvantage is the lack of hot water provided if there is an interruption in mains water supply. 

Indirect Hot Water Cylinders

Indirect hot water cylinders are heated by your boiler, and normally have an immersion heater as a back up.

Direct Hot Water Cylinders

Direct hot water cylinders are only heated by the immersion heater.


Hot Water Cylinders

Multipoint/Singlepoint Water Heater

This may service  multiple outlets for the hot water such as a few hand basins or sinks. All that is required is a cold water supply at mains pressure, electricity and drainage.Electric water heaters  can also be ideal just for use as a hot water supply to a single hand wash basin, and can be fitted as an undersink or oversink installation.

Buffer Cylinder

Buffer cylinders, also called actuators or stores, are used to take up excess heat from a heat source, hold it in a store, to be able to distribute it through the heating system as soon as it is required. It stops the need for the heat source to be continually starting and stopping, thereby making it more efficient and lengthening its lifespan.

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    Areas Covered

    Areas covered by Plumb Thermals Plumbers

    Norfolk, Norwich, Thorpe Hamlet, Thorpe St Andrew, Thorpe End, New Catton, Old Catton, Catton, Sprowston, Beeston, Plumstead Green, Great Plumstead,   Paper Mill YD, Trowse Newton, Poringland, Brundall, Wymondham, Bixley, Eaton, Little Melton, Cringleford, Bawburgh, Postwick, Framingham Pigot, Three Score, Chapel Break, Clover Hill, New Costessey, Costessey, Hellesdon, Upper Hellesdon, Drayton, Taverham, Ringland, Horsford, Horsham St Faith, Caister St Edmund

    Plumb Thermals Services

    Toilet Installation | Tap Fitting | Shower Repairs | Shower Installation | Leak Repairs | Power Flushing | Burst Pipes | Hot Water Cylinders | Radiator Replacement | Biomass Installation
    Home | Unvented Cylinders | Booster Pumps | New Toilet | Contact

    Plumb Thermals Ltd

    Plumbing and Heating; Domestic and Commercial
    54 Wolfe Road Norwich, Norfolk
    Phone: 01603 479473

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