Buffer tank PR2 – with two coils

от 851,00 лв.

Accumulates the heat generated by boiler; recommended for each space-heating system. Ensures optimum operating mode of biomass boiler, permitting its functioning at nominal power output even when the heating system does not need all the heat energy produced thereby.
Produced heat is accumulated and stored inside the buffer tank and can be used even when the boiler itself has cooled down.


Energy Efficiency
Aesthetic PVC jacket
Easy installation
Primer coated
Optional kit for electric heating

Product features:

  • Removable high efficiency insulation with thickness 100 mm and outer casing of PVC with RAL 9006 color
  • Multi-position mounting of temperature sensor
  • Primer coated on the outside of the tank
  • Heat exchanger coils
  • All threads are internal
  • Inlet / Outlet connections – at 180 angle degrees
  • Easy installation.
  • Optional kit for electric heating with nominal power  3kW, 4.5kW, 6kW or 7.5kW

Modifications and sizes, L:

  • 300, 500, 800, 1000, 1500, 2000, 2500, 3000

Energy Efficiency

  • Directive 2010/30 /EU, Regulation 812/2013:
  • Class E – capacity from 300 to 500 Liters;
  • Class Е – capacity from 800 to 1000 Liters.


1 – Aesthetic PVC jacket with color RAL 9006
2 – Primer coated outer surface
3 – Removable insulation
4 – Water tank of low-carbon steel
5 – Lower coil S1
6 – Upper coil S2

Technical specifications

PR 2PR 2 300PR 2 500PR 2 800PR 2 1000PR 2 1500PR 2 2000PR 2 2500PR 2 3000
Height without insulation / with insulationH, Hi, mm1410/14601610/16601860/19102040/20902150/22202132/21822482/25322246/2296
Minimal vertical clearancemm14301640190020752220222025422332
Diameter without insulation /with insulationD, mmØ 650/750Ø 650/850Ø 790/990Ø 790/990Ø 1000/1200Ø 1200/1400Ø 1250/1450Ø 1400/1600
Operating pressure/Max. buffer temperaturebar/0C3/953/953/953/953/953/953/953/95
Operating pressure /Max. coil temperaturebar/0C16/11016/11016/11016/11016/11016/11016/11016/110
Recommended boiler size, connected to buffer tankkW6-1010-1715-2718-3327-5036-6746-8455-100
Weight without insulation/with insulationkg, kg i83/93118/130189/205203/221306/329366/393400/430520/555
Sleeve for Electric heating elementВ, mm, Rp 11/2”76079092011301130117011701184
Heat carrierС1, mm, Rp11/2”11701370157317421808177521261797
Heat carrierС2, mm, Rp11/2”13901520130514201474
Heat carrierС3, mm, Rp11/2”8809901085117014201184
Heat carrierС4, mm, Rp11/2”7708809801060765735735864
Heat carrierС5, mm, Rp11/2”540620670730235230230344
Heat carrierС6, mm, Rp11/2”150150170170Rp1/2”/975Rp11/2”/1170
Sensor sleeveА1, mm, Rp1/2”410410570580875920920910
Sensor sleeveА2, mm, Rp1/2”10601120129015001500164516451660
Sensor sleeveА3, mm, Rp1/2”10101120129014501525162516251590
Sensor sleeveА4, mm, Rp1/2”420460465495520500500610
Air vent sleeveF, mm, Rp11/2”14101610186020402150213224822246
Capacity lower/upper coil S1/S2S1/S2 L6.2/3.110.5/6.217.9/11.118.5/12.321/14.824.6/14..824.6/14.829.9/17.1
Heat exchange surface S1/S2S1/S2 m21.0/0.51.7/1.02.9/1.83.0/2.03.4/2.44.0/2.44.0/2.44.9/2.8
Inlet/Outlet Lower coi  S1S1i/S1o, mm, Rp1”660/260770/250820/310880/310895/375980/380980/3801082/477
Inlet/Outlet Upper coil  S2S2i/S2o, mm, Rp1”1080/8801270/9901390/10721520/11721635/12251645/12851889/15251660/1310


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