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buffer tank

PFWR 1000 · Ecoline Vlies silver

Efficiency Class C

tubra PFWR Type 1000 - 3.0 square meters heat exchanger · Includes 100 mm silver fleece insulation

Item No. 37171000

  • Assembled tank
heat loss
141 W
Standby loss
3.38 kWh/24 h
ErP Volume
887
Weight
225 kg
Tank 3711000 Delivery time: approx. 4–5 weeks
Insulation 37191000 In stock
Total Delivery time: approx. 4–5 weeks

As of Oct 28, 2026

Request for 37171000

EAN 4250659514014

Average of tubra PFWR Type 1000 - 3.0 square meters heat exchanger

Dimensions and weights

H 2,093 Ø 990
Ø with insulation
990 mm
Ø without insulation
790 mm
Height including insulation
2,093 mm
Height without insulation
2,043 mm
tilt height
2,077 mm
Weight
225 kg
Insulation thickness
100 mm

Connections

No connections have been specified for this tank yet.

Technical Specifications

Volume

nominal capacity
887

heat exchanger

Heat exchanger Bottom Surface
3.0 m²

Print

Operating pressure of storage tanks
4.5 bar
Test pressure of the storage tank
7.8 bar
Max. Pressure heat exchanger
6 bar

insulation

Insulation thickness of the jacket (assembled)
100 mm
Insulation thickness of the jacket (raw)
115 mm
Insulation thickness of the lid
100 mm
Insulation color
silver
Lambda
0.0388 W/mK
Bulk density
1800 g/m²
Fire rating
B2 according to DIN 4102

Energy (ErP)

ErP Class
C
ErP - Heat loss (W)
141 W
ErP – Heat Loss (kWh)
3.38 kWh
ErP - Contents
887

specification text

PFW-R Multifunction Tank, incl. Insulation

Complete solution for heating, domestic hot water, and solar energy for single-family, two-family, or multi-family homes.

They ensure a constant supply of hot water without temperature fluctuations for drawing fresh water using a fresh water station that operates on the flow-through principle.

The fresh water station and the two heating circuit stations can be mounted directly on the storage tank. The internal piping ensures ideal stratification within the storage tank. Our PWF-R multifunction tank was developed in collaboration with Tuxhorn. You can find the corresponding components in Tuxhorn’s product portfolio.

Buffer tank for all hot water central heating systems. Suitable for: solid fuel and oil-fired boilers, heat pumps, solar systems, and gas or electric instantaneous water heaters. Manufactured from high-quality S235JR steel in accordance with EN 10025 and EC Directive 97/23/EC; exterior with anti-corrosion coating, interior left unfinished. Includes a sensor terminal strip for variable positioning of the sensors.

Nominal capacity
887 L
Operating pressure of storage tanks
4.5 bar
Test pressure of the storage tank
7.8 bar
Minimum pressure in the storage tank
+0 bar
Max. operating temperature
95°C
Min. temperature
20 °C
Heat exchanger Bottom Surface
3.0 m²
Max. Pressure heat exchanger
6 bar

Features

  • 5 x 1 ½ " socket (system connection on the left)
  • 3 x 1 ½ " sockets (system connection on the right)
  • System connections, including layer baffle plate
  • 1 x 1½" socket (air vent)
  • 4 x ½" sockets (standard sockets)
  • 2x 1" Socket for Solar Heat Exchangers
  • 2x 1" AG flat-seal connectors for quick
  • Connection
  • 4x 1" AG flat-seal connectors for the stations

The system connection ports are spaced 180° apart.

Insulation Details

Material
Polyester fiber nonwoven
Insulation color
Silver
Insulation thickness of the jacket (assembled)
100 mm
Lambda
0.0388 W/mK
Fire rating
B2 according to DIN 4102
Temperature Resistance
110 °C
Bulk density
1800 g/m²
Includes 50 mm floor insulation
ErP Class
C
ErP - Heat loss (W)
141 W

Dimensions with insulation

  • 990 x 2093 (Ø x H) mm
Manufacturer
Juratherm GmbH
Match Code
PFWR Type 1000 silver

Assembly consisting of

  • PFWR Type 1000
  • Fleece insulation, Type 1000
Weight
~225 kg
Tilt height
2077 mm
EAN13
4250659514014

Composition