If you want to serve multiple sinks or locate the heater out-of-sight, e.g. beneath a sink, you will need a mains pressure storage water heater (sometimes called an unvented water heater). You can install the heater more or less anywhere, but because the tank pressurised at the incoming cold mains pressure you will need to fit a safety relief valve and possibly other accessories if there is a cold water drinking supply nearby. This makes installation a little more complex, but overall we believe these heaters offer a much better solution than either instant or oversink water heaters. They are our best selling range of water heating products.
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Hyco Speedflow Premier Undersink Unvented Water Heater 10L
10 litre unvented mains water pressure heater which is suitable for small commercial applications, and offering high performance, multiple sink capability and allow the use of regular taps. External temperature control with neon element-on indicator and manually re-settable thermal cut-out. Glass-lined 2mm steel vessel with magnesium anode. 10L capacity suitable for 1 to 2 sinks. IPX4 (Splashproof) rating.
Capacity 10 Litres | Power 2kW | Tank Glass Lined Steel | Dimensions 410 x 310 x 280mm (H x W x D)
Size:
Single
Order Code:
SF10K
Price:
£77.00
Price inc. VAT:
£90.48
Hyco Speedflow Premier Undersink Unvented Water Heater 15L
15 litre unvented mains water pressure heater which is suitable for small commercial applications, and offering high performance, multiple sink capability and allow the use of regular taps. External temperature control with neon element-on indicator and manually re-settable thermal cut-out. Glass-lined 2mm steel vessel with magnesium anode. 15L capacity suitable for 2 to 3 sinks. IPX4 (Splashproof) rating.
Capacity 15 Litres | Power 2kW | Tank Glass Lined Steel | Dimensions 530 x 315 x 280mm (H x W x D)
Size:
Single
Order Code:
SF15K
Price:
£84.00
Price inc. VAT:
£98.70
Ariston Europrisma 10L 3kW Undersink Water Heater
Unvented mains pressure water heater -- 10 Litre capacity, 3 kW power, undersink.
Technologically advanced, versatile mains pressure water heater which is ideal for localised use. The Europrisma can be used where hot water is required but where it is not convenient to enlarge the existing central hot water system or where there is no central system at all. Examples of such situations are small industrial units, warehouses, dentists and doctors surgeries, cafes, and certain residential situations, e.g. additional bathrooms, loft conversions, etc.
Capacity 10 Litres | Power 3kW | Tank Glass Lined Steel | Dimensions 350 x 350 x 255mm (H x W x D)
Size:
Single
Order Code:
EP10UR-WW
Price:
£115.00
Price inc. VAT:
£135.13
Ariston Europrisma 10L 3kW Oversink Water Heater
Unvented mains pressure water heater -- 10 Litre capacity, 3 kW power, oversink.
Technologically advanced, versatile mains pressure water heater which is ideal for localised use. The Europrisma can be used where hot water is required but where it is not convenient to enlarge the existing central hot water system or where there is no central system at all. Examples of such situations are small industrial units, warehouses, dentists and doctors surgeries, cafes, and certain residential situations, e.g. additional bathrooms, loft conversions, etc.
Capacity 10 Litres | Power 3kW | Tank Glass Lined Steel | Dimensions 350 x 350 x 255mm (H x W x D)
Size:
Single
Order Code:
EP10OR-WW
Price:
£115.00
Price inc. VAT:
£135.13
Zip Aquapoint III Unvented Water Heater - 5L
Capacity 5L. Standard unvented heater for single or multiple outlets Zip Aquapoint III delivers hot water for one or more outlets and can be used with conventional taps or mixers. It has a glass lined steel storage tank tested to 12 bar. External temperature control and frost protection setting.
Capacity 5 Litres | Power 2.2kW | Tank Glass Lined Steel | Dimensions 376 x 256 x 260mm (H x W x D)
Size:
Single
Order Code:
AP35
Price:
£121.00
Price inc. VAT:
£142.18
Ariston Europrisma 15L 3kW Undersink Water Heater
Unvented mains pressure water heater -- 15 Litre capacity, 3 kW power, undersink.
Technologically advanced, versatile mains pressure water heater which is ideal for localised use. The Europrisma can be used where hot water is required but where it is not convenient to enlarge the existing central hot water system or where there is no central system at all. Examples of such situations are small industrial units, warehouses, dentists and doctors surgeries, cafes, and certain residential situations, e.g. additional bathrooms, loft conversions, etc.
Capacity 15 Litres | Power 3kW | Tank Glass Lined Steel | Dimensions 350 x 350 x 300mm (H x W x D)
Size:
Single
Order Code:
EP15UR-WW
Price:
£129.00
Price inc. VAT:
£151.58
Ariston Europrisma 15L 3kW Oversink Water Heater
Unvented mains pressure water heater -- 15 Litre capacity, 3 kW power, oversink.
Technologically advanced, versatile mains pressure water heater which is ideal for localised use. The Europrisma can be used where hot water is required but where it is not convenient to enlarge the existing central hot water system or where there is no central system at all. Examples of such situations are small industrial units, warehouses, dentists and doctors surgeries, cafes, and certain residential situations, e.g. additional bathrooms, loft conversions, etc.
Capacity 15 Litres | Power 3kW | Tank Glass Lined Steel | Dimensions 350 x 350 x 300mm (H x W x D)
Size:
Single
Order Code:
EP15OR-WW
Price:
£129.00
Price inc. VAT:
£151.58
Zip Aquapoint III Unvented Water Heater - 10L
Capacity: 10L. Standard unvented heater for single or multiple outlets Zip Aquapoint III delivers hot water for one or more outlets and can be used with conventional taps or mixers. It has a glass lined steel storage tank tested to 12 bar. External temperature control and frost protection setting.
Capacity 10 Litres | Power 2kW | Tank Glass Lined Steel | Dimensions 460 x 350 x 265mm (H x W x D)
Size:
Single
Order Code:
AP310
Price:
£137.00
Price inc. VAT:
£160.98
Redring EW Unvented Undersink Water Storage Heater - 10L
Capacity: 10L. Undersink. Will deliver hot water to as many as four outlets. Balanced supply of hot and cold water. Heat loss minimisation and energy savings from short pipe runs and superior insulation. Water outlet via existing tap or mixer. Adjustable thermostat to 70 deg C. Over temperature safety cut-out. Neon light indicates when heater is working. Compact shape for undersink mounting Remote siting possible.
Capacity 10 Litres | Power 3kW | Tank Glass Lined Steel | Dimensions 360 x 360 x 254mm (H x W x D)
Size:
Single
Order Code:
784501
Price:
£138.00
Price inc. VAT:
£162.15
Redring EW Unvented Undersink Water Storage Heater - 15L
Capacity: 15L. Undersink. Will deliver hot water to as many as four outlets Balanced supply of hot and cold water. Heat loss minimisation and energy savings from short pipe runs and superior insulation. Water outlet via existing tap or mixer. Adjustable thermostat to 70 deg C. Over temperature safety cut-out. Neon light indicates when heater is working. Compact shape for undersink mounting. Remote siting possible.
Capacity 15 Litres | Power 3kW | Tank Glass Lined Steel | Dimensions 360 x 360 x 300mm (H x W x D)
If you want to serve multiple sinks or locate the heater out-of-sight, e.g. beneath a sink, you will need a mains pressure storage water heater (sometimes called an unvented water heater). You can install the heater more or less anywhere, but because the tank pressurised at the incoming cold mains pressure you will need to fit a safety relief valve and possibly other accessories if there is a cold water drinking supply nearby. This makes installation a little more complex, but overall we believe these heaters offer a much better solution than either instant or oversink water heaters. They are our best selling range of water heating products. 
Time Controllers 
10 litre unvented mains water pressure heater which is suitable for small commercial applications, and offering high performance, multiple sink capability and allow the use of regular taps. External temperature control with neon element-on indicator and manually re-settable thermal cut-out. Glass-lined 2mm steel vessel with magnesium anode. 10L capacity suitable for 1 to 2 sinks. IPX4 (Splashproof) rating. 
Unvented mains pressure water heater -- 10 Litre capacity, 3 kW power, undersink.
Technologically advanced, versatile mains pressure water heater which is ideal for localised use. The Europrisma can be used where hot water is required but where it is not convenient to enlarge the existing central hot water system or where there is no central system at all. Examples of such situations are small industrial units, warehouses, dentists and doctors surgeries, cafes, and certain residential situations, e.g. additional bathrooms, loft conversions, etc. 
Capacity 5L. Standard unvented heater for single or multiple outlets Zip Aquapoint III delivers hot water for one or more outlets and can be used with conventional taps or mixers. It has a glass lined steel storage tank tested to 12 bar. External temperature control and frost protection setting.
Capacity: 10L. Undersink. Will deliver hot water to as many as four outlets. Balanced supply of hot and cold water. Heat loss minimisation and energy savings from short pipe runs and superior insulation. Water outlet via existing tap or mixer. Adjustable thermostat to 70 deg C. Over temperature safety cut-out. Neon light indicates when heater is working. Compact shape for undersink mounting Remote siting possible.
