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Shower Cyl  Hot Water Cylinders

ShowerCyl hot water cylinders

The clever way to enhance shower performance on a gravity hot water system without the need for a booster pump.

 Available as Indirect, Direct, Combination and Economy 7 type hot water cylinders

To see many other types of cylinder in our comprehensive range click here

Gravity and mains pressure hot water from the same cylinder

Mains pressure hot water systems are extremely popular these days, but they can prove to be a significant investment. The beauty of mains pressure systems is the performance you can expect to achieve (providing you have sufficient pressure and flow rate in the cold water main supply - see note below).

It's one thing to desire, it's another to be in a position to spend the money and prepared for the upheaval.

ShowerCyl - Hot water cylinder with shower coil

The ShowerCyl cylinder is an interesting hybrid of a mains pressure and gravity pressure cylinders. The ShowerCyl is an open vented 'gravity' cylinder with all the  functionality you would expect, but with an additional heat exchanger fitted internally near the top which is dedicated purely to providing mains pressure hot water for a shower. (Similar to a shower take-off, but instead of drawing water from inside the cylinder it heats mains water passing through the coil.)

Gravity hot water cylinder with mains pressure shower take off

By installing a high efficiency mains pressure heat exchanger inside the cylinder in the top of the cylinder (where the hottest water is) and passing cold water through it (which is fed directly from your main) you produce mains pressure hot water in sufficient quantity to enjoy a high performance mains pressure shower (Please see note below) from it's own dedicated take-off on the cylinder.

 

The rest of your household hot water plumbing continues to operate under gravity conditions exactly as it did before.

ShowerCyl - the vented gravity cylinder that can supply mains pressure hot water to a shower

Having a mains pressure hot water supply to your shower does away with the need to install a shower booster pump to increase performance (providing of course your mains pressure supply is adequate). In such a scenario it would of course be prudent to provide a mains pressure cold feed to your shower valve also - thus providing fairly well balanced supplies. (Shower equipment connected to a mains pressure feed should be of the 'thermostatic' type.)

(Note: The performance of a mains pressure system is entirely dependant on the pressure and flow of the incoming cold water main and is subject to the normal fluctuations in pressure, temperature and/or flow. Once installed a mains pressure supply cannot be boosted if you are subsequently unhappy with performance. To do so is in contravention of Water Bye Laws. With ShowerCyl the same rules apply to the mains pressure coil and associated output, but you are at liberty to continue doing anything you wish with the stored gravity hot and cold water in your system. Interestingly this leaves you the option of reverting back to your gravity stored water if for any reason you find yourself unhappy with performance which would then enable you to install a pump. For this reason, if no other, it might be considered wise to request a direct shower take-off when ordering your cylinder.)

 

The ShowerCyl is available in the following cylinder formats:

 

 

(Click the link to the relevant cylinder type)

 


The benefits and savings

  1. Mains pressure hot water from your gravity system from a dedicated shower take-off without comprehensive re-plumbing of your house.

  2. No need to worry about G3 Building Regulations or an annual service on the cylinder.

  3. Save money on the cost of 1) a shower booster pump (no need to buy a pump), 2) a Surrey Flange for your cylinder (a necessary component if you install a booster pump), and 3) a larger header tank for the loft (often required to cope with the higher demand for water created by the pump).

Please be advised, the ShowerCyl cylinder can produce enough mains pressure hot water for you to shower. If you like the principle of the system but would like to supply the entire house by this method you should look at the TORRENT range of cylinders on this website. The ShowerCyl by comparison has a limited output to the Torrent and is designed to cope with the lesser demands of a typical shower.

Combination ShowerCyl Hot Water Cylinders

An excellent application for the ShowerCyl cylinder is where a lack of loft space demands you use a combination cylinder (a cylinder with a built-in header tank). It is often observed that combination cylinders provide very poor pressure (because the head of water is so low) and that it is impossible to get a decent shower because of this.

A remedy one might attempt is to install a shower booster pump. This however is not advisable because the header section of the cylinder will empty so quickly you run the risk of the system going dry (not a good idea and not particularly practical).

It is possible with the ShowerCyl cylinder to provide a dedicated mains pressure hot water feed straight from the cylinder whilst leaving the rest of the system in normal gravity mode. (just a couple of things to note, ensure you have sufficient mains pressure and room enough for a cylinder of a suitable size to make this viable.)

Regulations, installation and servicing

Mains pressure hot water systems that contain in excess of 15 litres of hot water under pressure are subject to Building Regulations (Section G3). Because the quantity of mains pressure hot water in the ShowerCyl system is below the 15 litre threshold at any given moment a cylinder of this nature does not present any issues under Building Regulations, it therefore does not require specialist installer, it does not require commissioning and certification and does not require an annual service. For these reasons it is permissible and entirely reasonable for any competent person to install one.

SHOWERCYL INDIRECT hot water cylinders to British Standard

Fitted with: Options:
  • 1" bosses (or Compression fittings*)
  • 2 1/4" IMH boss (Immersion heater not included)
  • Boiler coil
  • Envirofoam High Performance Insulation
  • See options list below
 

ShowerCyl Indirect - Vented cylinder with mains pressure shower coil heated via a boiler coil and optional immersion heater

Shower Cyl Indirect  Hot Water Cylinders

 

 

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mm Capacity (litres) inches Price inc vat
1500 x 400 170 60 x 16 464.26
1200 x 450 162 48 x 18 410.76
1500 x 450 218 60 x 18 498.37
1800 x 450 265 72 x 18 605.48
       
1200 x 500 190 48 x 20 707.24
1270 x 500 215 50 x 20 808.27
1500 x 500 245 60 x 20 823.84
1800 x 500 273 72 x 20 875.04
       
1200 x 600 300 48 x 24 1075.69
1500 x 600 380 60 x 24 1175.73
1800 x 600 450 72 x 24 1352.78

DIRECT

SHOWERCYL DIRECT hot water cylinders to British Standard

Fitted with: Options:
  • 1" bosses
  • 2 1/4" IMH boss (Immersion heater not included)
  • Envirofoam High Performance Insulation
  • See options list below
 

ShowerCyl Direct - Mains pressure shower water, gravity hot water Heated by single electric immersion heater

Shower Cyl Direct  Hot Water Cylinder

 

 

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mm Capacity (litres) inches Price inc vat
1200 x 450 166 48 x 18 403.17
1500 x 450 222 60 x 18 488.04
1800 x 450 268 72 x 18 628.56
       
1200 x 500 193 48 x 20 661.48
1270 x 500 218 50 x 20 817.13
1500 x 500 248 60 x 20 712.69
1800 x 500 276 72 x 20 923.77
       
1200 x 600 305 48 x 24 966.49
1500 x 600 385 60 x 24 1143.53
1800 x 600 454 72 x 24 1320.58

All cylinders are compliant with Part L Building Regulations.

SHOWERCYL  ECONOMY 7 DIRECTcylinders to British Standard
Fitted with: Options:
  • 1" bosses
  • 2 x 2 1/4" IMH boss (Immersion heaters not included)

 

  • See options list below
 

 

ShowerCyl E7 Direct - Heated by off-peak and boost element provides both gravity and mains pressure hot water for shower

Shower Cyl Economy 7 Direct  Hot Water Cylinder

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mm Capacity (litres) inches Price inc vat
1200 x 450 166 48 x 18 482.52
1500 x 450 210 60 X 18 543.42

SHOWERCYL ECONOMY 7 INDIRECT CYLINDERS to British Standard

Fitted with: Options:
  • 1" bosses
  • 2 x 2 1/4" IMH boss (Immersion heaters not included)
  • Boiler coil
  • See options list below
 

 

ShowerCyl E7 Indirect - Twin immersion heaters and a boiler heat exchanger to provide both gravity and mains pressure hot water

Shower Cyl Economy 7 Indirect  Hot Water Cylinder prices

Gas Appliance Guide - Still bringing you the BEST prices in the UK!

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mm Capacity (litres) inches Price inc vat
1200 x 450 162 48 x 18 545.74
1500 x 450 206 60 X 18 606.16

 


 

SHOWERCYL DIRECT COMBINATION CYLINDER to British Standard

Fitted with: Options:
  • 1" bosses
  • 2 1/4" IMH boss (Immersion heater not included)
  • Envirofoam High Performance Insulation
  • See options list below
 

 

ShowerCyl DIRECT Combination - Built in header tank, heated by single immersion heater

Shower Cyl Direct Combination Hot Water Cylinder prices

Gas Appliance Guide - Still bringing you the BEST prices in the UK!

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mm Capacity (hot/cold) inches Price inc vat
1500 x 450 166/40 60 x 18 579.57
1800 x 450 210/40 72 x 18 622.73

CT

SHOWERCYL INDIRECT COMBINATION CYLINDER to British Standard

Fitted with: Options:
  • 1" bosses
  • 2 1/4" IMH boss (Immersion heater not included)
  • Envirofoam High Performance Insulation
  • Options list see below

 

 

 

ShowerCyl Indirect Combination model - built in header tank, boiler coil and optional immersion heater

Shower Cyl Indirect Combination Hot Water Cylinder price list

Gas Appliance Guide - Still bringing you the BEST prices in the UK!

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mm Capacity (hot/cold) inches Price inc vat
1500 x 450 166/40 60 x 18 620.15
1800 x 450 210/40 72 x 18 665.93

SHOWERCYL DIRECT ECONOMY 7 COMBINATION CYLINDERS to British Standard

Fitted with: Options:
  • 1" bosses
  • 2 x 2 1/4" IMH boss (Immersion heaters not included)
  • Envirofoam High Performance Insulation
  • See options list below
 

Prices as of Mar 2017

ShowerCyl E7 Direct - Built in header tank and two immersion heaters for use on off peak tarriff

Shower Cyl Economy 7 combination Direct  Hot Water Cylinders

Gas Appliance Guide - Still bringing you the BEST prices in the UK!

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mm Capacity (hot/cold)) inches Price inc vat
1500 x 450 166 / 40 60 x 18 594.88
1850 x 450 210 / 40 72 x 18 639.35

INDIRECT

SHOWERCYL INDIRECT ECONOMY 7 COMBINATION CYLINDERS to British Standard

Fitted with: Options:
  • 1" bosses
  • 2 x 2 1/4" IMH boss (Immersion heaters not included)
  • Envirofoam High Performance Insulation
  • See options list below
 

Prices as of Mar 2017

 

ShowerCyl E7 Combination Indirect - Built in header tank, twin immersion heaters (for Economy 7) and a boiler coil

 

ShowerCyl Indirect  Economy 7 Combination Hot Water Cylinder prices

Gas Appliance Guide - Still bringing you the BEST prices in the UK!

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mm Capacity (litres) inches Price inc vat
1500 x 450 166 / 40 60 x 18 642.15
1800 x 450 210 / 40 72 x 18 725.34

Additions and optional extras

Options available at additional cost include:

 
  Compression fittings (instead of threaded bosses) 12.00
  Shower take-off 17.50
  Additional Tappings (pairs) 18.00
  Secondary return 12.00
 
  Immersion Heater (Incalloy) 3kW alloy coated (corrosion resistant) 32.00
  Drain valve (drain cock) [threaded boss included on cylinder] 7.50
     
  Hi recovery boiler coil (pumped) - indirect model only 45.00
  Super Recovery coil (Pumped) poa
     
  Ball valve and overflow (combination models - supplied loose - not installed) 15.00
  Additional immersion boss (already supplied with two) 18.00
  Gravity boiler coil with 28mm connections (Large bore for AGA, wood burner etc) - Indirect model only

78.00

(please add to stated price)

Positioning tappings (connections) to your specification does not normally attract a supplementary charge

     
When sizing a cylinder remember the stated dimensions do not include the thickness of insulation. You must add the thickness of insulation to the cylinder dimension to obtain the finished size. This is most important if the cylinder needs to pass through a doorway or access hatch. Make sure you have enough room to make connections and service immersion heaters.

Illustrations are for guidance only and should not be interpreted as an exact representation.

 

Gravity and mains pressure hot water from the same cylinder

 

 


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