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RVS NEXT NXWT 300L -100L buffer

Nexus Next A+ NEXT 300+100 2-in-1 Duplex 2205 stainless steel heat pump boiler with 100L buffer tank, extra-thick PU insulation and Ø32 mm high-flow heat exchanger.


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  • RVS Next Generation A+ Category:
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Cost overview
  • € 2.613,17
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RVS NEXT NXWT 300L -100L buffer

Nexus Next A+ NEXT 300+100 2-in-1 Heat Pump Boiler with Buffer Tank

The Nexus Next A+ NEXT 300+100 combines a Duplex 2205 stainless steel domestic hot water boiler with a lower 100 litre buffer tank in one compact unit.

The A+ energy label is supported by extra-thick PU insulation, reducing standby heat loss and keeping stored heat available for longer.

The integrated Ø32 mm AISI 316L corrugated heat exchanger is designed for modern heat pumps with higher flow requirements and efficient heat transfer.

The lower buffer section increases system volume, improves hydraulic stability and helps reduce frequent heat pump cycling.

Key Features

  • 2-in-1 DHW boiler and 100L buffer tank
  • Energy Label A+ with extra-thick PU insulation
  • Duplex 2205 stainless steel DHW tank
  • Ø32 mm AISI 316L high-flow heat exchanger
  • Improves hydraulic stability
  • Professional frosted-metal finish

Specifications

Technical data - NEXT 300+100

General
Product typeA+ 2-in-1 stainless steel heat pump boiler with lower buffer tank
Rated volume300+100 L
DHW boiler volume300 L
Buffer volume100 L
ApplicationDomestic hot water and heat pump buffer function
Installation typeVertical floor-standing
Connection layoutUpper DHW boiler with lower 100 L buffer tank
Number of heat exchangers1
Height [mm]1937
Tilt height [mm]2060
ØD Outer diameter [mm]700
Ød Inner diameter [mm]550
InsulationCFC-free rigid PU foam
Insulation thickness [mm]75
Outer casingFrosted metal, RAL 7030
Weight [kg]88
Warranty3 years
Tank
Upper DHW tank materialStainless steel Duplex 2205
Lower buffer tank materialStainless steel AISI 304
Max. tank pressure [bar]6
Max. tank temperature [deg C]95
Heat Exchanger
Exchanger typeHigh-flow corrugated heat pump heat exchanger
Exchanger designØ32 mm corrugated pipe coil
Exchanger materialAISI 316L stainless steel
Exchanger length [m]30
Max. exchanger pressure [bar]10
Max. exchanger temperature [deg C]95
Connections
HHeight1937 mm
ØDØD Outer diameter700 mm
ØdØd Inner diameter550 mm
HDN 14G 3/4"P&T safety valve1937 mm
BDN 3G 1"Connection inlet/outlet1672 mm
FDN 9G 1 1/4"Ø32 mm AISI 316L stainless steel XL heat exchanger 30 m, inlet/outlet1672 mm
CDN 5G 1/2"Sensor pocket (1) (12.7 mm)1395 mm
PDN 15G 1/2"Sensor pocket (2) (12.7 mm)1231 mm
LDN 6G 1 1/2"Electric heating element990 mm
DDN 7G 1/2"Sensor pocket (3) (12.7 mm)945 mm
ADN 4G 1"Connection inlet/outlet845 mm
EDN 8G 1"Ø32 mm AISI 316L stainless steel XL heat exchanger 30 m, inlet/outlet845 mm
GDN 2G 1/2"Drain tap597 mm
SDN 34G 3/4"P&T safety valve562 mm
JDN 23G 1"Connection inlet/outlet355 mm
NDN 29G 1"Connection inlet/outlet355 mm
RDN 25G 1/2"Sensor pocket (4) (12.7 mm)305 mm
TDN 26G 1 1/2"Electric heating element275 mm
IDN 24G 1"Connection inlet/outlet275 mm
MDN 28G 1"Connection inlet/outlet275 mm
Safety notice
The storage vessel must be protected against overpressure at all times.
We recommend installing the following safety accessories:
- Safety valve and inlet combination
- Nexus sanitary expansion vessel
- Nexus expansion vessel for heating systems
The required expansion vessel capacity must be calculated according to the total system volume and operating conditions.