The versatile option

AccuWIN
Klassik

500 - 5000 Litres
product request

AccuWIN Klassik

The versatile option

Your AccuWIN Klassik heat accumulator stores heat efficiently and safely. The energy from your heating system is stored in your AccuWIN and can be used as and when required. This makes heating very convenient, especially with solid fuel boilers. You can pick your AccuWIN from the 19 different sizes and types available and opt for a capacity of between 500 and 5000 litres. 

Boiler design

Optional heating coil integration  X

Available with zero, one or two heating coils to integrate various heating sources

Hooked strip X

Hooked strip to simply and quickly fit the insulation

Different capacities X

Capacity of 500 to 5000 litres (special sizes available)

Fleece insulation X

Up to 38 per cent less storage loss as compared to soft foam insulation thanks to the energy-saving and environmentally friendly 100 mm fleece insulation.

Cogent to the smallest detail
 

  • Up to 38 per cent less storage loss as compared to soft foam insulation thanks to the energy-saving and environmentally friendly 100 mm fleece insulation.
     
  • Available with zero, one or two heating coils to integrate various heating sources.
     
  • Hooked strip to simply and quickly fit the insulation.
     
  • Capacity of 500 to 5000 litres (special sizes available) 

The advantages at a glance

+ Rapid heating thanks to large smooth-tube indirect coil heaters

+ Optimum heat storage thanks to 100 mm ECO SKIN fleece insulation

+ The right accumulator solution for every situation

Greater efficiency for heat storage

The AccuWIN has large smooth-tube indirect coil heaters so heats up very fast. Thanks to its energy-saving 100 mm ECO SKIN fleece insulation, the AccuWIN has up to 38% less accumulator losses than comparable products with soft foam insulation. Should your boiler not be available, you can also heat up the content of your AccuWIN with an optional electric immersion heater.

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Other heat accumulators

Need more inspiration? Windhager offers a variety of solutions for hot water tanks and accumulator tanks that can be used flexibly. See for yourself!

Our heat accumulators at a glance

Technical data

The Windhager AccuWIN Klassik heat accumulator is available with zero (eight versions), one (seven versions) or two (four versions) heating coils.

AccuWIN Klassik: 0 heating coils

Type   ACK 500 ACK 800 ACK 1000 ACK 1500 ACK 2000 ACK 3000 ACK 4000 ACK 5000
Contents approx. l 500 800 1,000 1,500 2,000 3,000 4,000 5,000
Coil heater surface top/bottom m2 –/– –/– –/– –/– –/– –/– –/– –/–
Coil heater content top/bottom l –/– –/– –/– –/– –/– –/– –/– –/–
Ø not including insulation mm 650 790 790 1000 1100 1250 1400 1600
Height not including insulation mm 1640 1700 2050 2150 2380 2596 2669 2770
Height including insulation mm 1725 1785 2135 2235 2465 2681 2754 2855
Tilted height not including insulation mm 1670 1750 2090 2270 2460 2650 2740 2893
Weight not including insulation kg 75 91 101 190 238 365 490 580
Supply and return connections   6/4" int. thr. 6/4" int. thr. 6/4" int. thr. 6/4" int. thr. 6/4" int. thr. 2" int. thread 2" int. thread 2" int. thread
Max. operating pressure bar 3 3 3 3 3 3 3 3
Energy efficiency class   C C C C C C C C

 

AccuWIN Klassik: 1 heating coils

Type   ACK 501R ACK 801R ACK 1001R ACK 1501R ACK 2001R ACK 3001R ACK 5001R
Contents approx. l 500 800 1,000 1,500 2,000 3,000 5,000
Coil heater surface top/bottom m2 1.8/– 2.4/– 3.0/– 3.6/– 4.2/– 4.5/– 6.0/–
Coil heater content top/bottom l 11/– 15/– 19/– 22/– 26/– 29/– 39/–
ø not including insulation mm 650 790 790 1000 1100 1250 1600
Height not including insulation mm 1640 1700 2050 2150 2380 2596 2770
Height including insulation mm 1725 1785 2135 2235 2465 2681 2855
Tilted height not including insulation mm 1670 1750 2090 2270 2460 2650 2893
Weight not including insulation kg 98 122 143 244 298 446 660
Supply and return connections   6/4" int. thr. 6/4" int. thr. 6/4" int. thr. 6/4" int. thr. 6/4" int. thr. 2" int. thread 2" int. thread
Max. operating pressure bar 3 3 3 3 3 3 3
Energy efficiency class   C C C C C C C

AccuWIN Klassik: 2 heating coils

Type   ACK 802R ACK 1002R ACK 1502R ACK 2002R
Contents approx. l 800 1,000 1,500 2,000
Coil heater surface top/bottom m2 2.4/1.8 3.0/2.4 3.6/2.4 4.2/2.8
Coil heater content top/bottom l 15/11 19/15 22/15 26/26
ø not including insulation mm 790 790 1000 1100
Height not including insulation mm 1700 2050 2150 2380
Height including insulation mm 1785 2135 2235 2465
Tilted height not including insulation mm 1750 2090 2270 2460
Weight not including insulation kg 146 176 278 341
Supply and return connections   6/4" int. thr. 6/4" int. thr. 6/4" int. thr. 6/4" int. thr.
Max. operating pressure bar 3 3 3 3
Energy efficiency class   C C C C