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Unvented Cylinders (48 products)
Our range of unvented hot water cylinders are stainless steel shell with stainless steel thermostat pockets, all units pickled and passivated to ensure long life, insulated with environmentally friendly foam and enclosed in a rust resistant white steel case. They are available as direct (electrically heated) and indirect for oil and gas. Read more Show less
Expansion Vessel for Unvented Hot Water - 18 Litres
Part number: 21195
Potable Water expansion vessel - 18 litres with butyl bladder membrane manu...
Ex. VAT
£30.16
Inc. VAT
£36.19
Dry Trap Tundish - 15mm x 32mm Compression
Part number: 23731
The TeslaTun is both a dry trap and a tundish combined, incorporating a sea...
Ex. VAT
£22.50
Inc. VAT
£27.00
Temperature & PRV Short Probe 7 Bar 3/4" TM x 22mm
Part number: 24138
PRV. Designed to prevent damage to an unvented hot water cylinder by reliev...
-
New Product
Just arrived. Latest version, etc.
Ex. VAT
£19.33
Inc. VAT
£23.20
Stelflow Direct - 90 Litre
Part number: 20411
Stelflow Direct - 90 Litre Duplex stainless steel shell with stainless stee...
Ex. VAT
£305.81
Inc. VAT
£366.97
Expansion Vessel Service Valve 3/4" BSP Union x BSP PM
Part number: 23730
Service valve for sealed heating system expansion vessel.
Ex. VAT
£13.50
Inc. VAT
£16.20
Expansion Vessel for Unvented Hot Water - 24 Litres
Part number: 21196
Potable Water expansion vessel - 24 litre with butyl bladder membrane manuf...
Ex. VAT
£34.53
Inc. VAT
£41.44
Expansion Vessel for Unvented Hot Water - 2 Litres
Part number: 21192
Potable Water expansion vessel - 2 litres with butyl bladder membrane manuf...
Ex. VAT
£20.15
Inc. VAT
£24.18
Immersion Heater 14" Titanium - Unvented Cylinder
Part number: 23744
Tesla 3 kW, 14" long immersion heater, 1.3/4" BSP connection for use with u...
Ex. VAT
£41.78
Inc. VAT
£50.14
Immersion Heater 14" Incoloy - Unvented Cylinder
Part number: 23743
Tesla 3 kW, 14" long immersion heater, 1.3/4" BSP connection for use with u...
Ex. VAT
£24.07
Inc. VAT
£28.88
Temperature & PRV Short Probe 7 Bar 1/2" TM x 15mm
Part number: 22078
Designed to prevent damage to an unvented hot water cylinder by relieving e...
Ex. VAT
£19.86
Inc. VAT
£23.83
Potable Vessel Mounting Brackets 8 to 18 Litre Vessels
Part number: 22045
8 to 18 Litre Vessels Wall mounting bracket, securing band and fixings....
Ex. VAT
£5.37
Inc. VAT
£6.44
Expansion Vessel for Unvented Hot Water - 8 Litres
Part number: 21193
Potable Water expansion vessel - 8 litres with butyl bladder membrane manuf...
Ex. VAT
£23.33
Inc. VAT
£28.00
Temperature & PRV Short Probe 4 Bar 1/2" TM x 15mm
Part number: 22076
Designed to prevent damage to an unvented hot water cylinder by relieving e...
Ex. VAT
£19.86
Inc. VAT
£23.83
High Temperature & Pressure Relief Pump
Part number: 23745
Pump House, automatic high temperature hot water pump with 5 litre stainles...
Ex. VAT
£609.23
Inc. VAT
£731.08
Expansion Vessel for Unvented Hot Water - 12 Litres
Part number: 21194
Potable Water expansion vessel - 12 litre with butyl bladder membrane manuf...
Ex. VAT
£25.91
Inc. VAT
£31.09
Ultrasteel Unvented Indirect Cylinder - 250 Litres
Part number: 23403
Duplex stainless steel shell with stainless steel thermostat pockets, insul...
Ex. VAT
£571.86
Inc. VAT
£686.23
Potable Vessel Mounting Brackets 24 Litre Vessel
Part number: 22064
24 Litre Vessel Wall mounting bracket, securing band and fixings....
Ex. VAT
£15.91
Inc. VAT
£19.09
Stelflow Direct - 120 Litre
Part number: 20412
Stelflow Direct - 120 Litre Duplex stainless steel shell with stainless ste...
Ex. VAT
£321.03
Inc. VAT
£385.24
Temperature & PRV Short Probe 4 Bar 3/4" TM x 22mm
Part number: 22994
Designed to prevent damage to an unvented hot water cylinder by relieving e...
Ex. VAT
£19.47
Inc. VAT
£23.36
Temperature & PRV Short Probe 10 Bar 3/4" TM x 22mm
Part number: 22995
Designed to prevent damage to an unvented hot water cylinder by relieving e...
Ex. VAT
£20.07
Inc. VAT
£24.08
Stelflow Indirect - 180 Litre
Part number: 20421
Stelflow Indirect - 180 Litre Duplex stainless steel shell with stainless s...
Ex. VAT
£444.90
Inc. VAT
£533.88
Ultrasteel Unvented Indirect Cylinder - 300 Litres
Part number: 23404
Duplex stainless steel shell with stainless steel thermostat pockets, insul...
Ex. VAT
£621.61
Inc. VAT
£745.93
Ultrasteel Unvented Indirect Cylinder - 210 Litres
Part number: 23402
Duplex stainless steel shell with stainless steel thermostat pockets, insul...
Ex. VAT
£528.55
Inc. VAT
£634.26
Temperature & PRV Short Probe 6 Bar 1/2" TM x 15mm
Part number: 22077
Designed to prevent damage to an unvented hot water cylinder by relieving e...
Ex. VAT
£20.28
Inc. VAT
£24.34
Stelflow Direct - 150 Litre
Part number: 20413
Stelflow Direct - 150 Litre Duplex stainless steel shell with stainless ste...
Ex. VAT
£355.91
Inc. VAT
£427.09
Ultrasteel Solar Unvented Indirect Cylinder - 300 Litres
Part number: 23408
Duplex stainless steel shell with stainless steel thermostat pockets, insul...
Ex. VAT
£861.87
Inc. VAT
£1,034.24
Ultrasteel Solar Unvented Indirect Cylinder - 250 Litres
Part number: 23407
Duplex stainless steel shell with stainless steel thermostat pockets, insul...
Ex. VAT
£765.41
Inc. VAT
£918.49
Ultrasteel Solar Unvented Indirect Cylinder - 210 Litres
Part number: 23406
Duplex stainless steel shell with stainless steel thermostat pockets, insul...
Ex. VAT
£791.76
Inc. VAT
£950.11
Ultrasteel Solar Unvented Indirect Cylinder - 180 Litres
Part number: 23405
Duplex stainless steel shell with stainless steel thermostat pockets, insul...
Ex. VAT
£729.40
Inc. VAT
£875.28
Ultrasteel Unvented Indirect Cylinder - 180 Litres
Part number: 23401
Duplex stainless steel shell with stainless steel thermostat pockets, insul...
Ex. VAT
£507.69
Inc. VAT
£609.23
