ThermaQ ST OVB

ThermaQ
ST OVB

Open vented boiler system with electrical backup.

The ThermaQ ST OVB is designed for use with a standard vented boiler. This can be a gas, oil or solid fuel type which is connected directly into the heat store via the connections provided.

One of the main benefits of this system is the whole output of the heat source is utilised as there is no boiler heat exchanger. This format also allows the unit to be installed using a double pump system which can be split into two circuits.

Wood burning stoves offer one of the best inputs for these cylinders as they tend to reach very high temperatures. By pairing with an open vented boiler system they can provide hot water and space heating with almost zero carbon emissions.

  • Pressure Reducing Valve (Loose)
  • Mixing Valve
  • 2L Expansion Vessel (Stainless Steel)
  • 22mm Isolating Valve
  • Ball Valve (Combinations Only)
  • Float (Combinations Only)
  • Immersion Heater(s)
  • Single Aquastat
  • All Thermal Stores ERP rated ‘D’

ThermaQ ST OVB

Type Code Capacity
(L)
Cylinder
Height
(G)
Diameter
(mm)
Cold
Feed/
Drain
Off/
Return
(A)
Immersion
(B)
Stat
(C)
Flow
(D)
Cold
Main
Inlet
(E)
Coil Hot
Outlet/
And
Direct
Flow
(F)
Cylinder CTX0001 120 900 450 100 150 215 300 285 685
Cylinder CTX0002 140 1050 450 100 150 215 300 440 840
Cylinder CTX0003 160 1200 450 100 150 215 400 590 990
Cylinder CTX0004 180 1350 450 100 150 215 400 740 1140
Cylinder CTX0005 210 1500 450 100 150 215 400 895 1295
Cylinder CTX0006 250 1800 450 100 150 215 400 1195 1595
Cylinder CTX0007 300 1650 500 100 150 215 400 1045 1445
Combi CTX0014 120 1150 450 100 150 215 300 285 685
Combi CTX0008 140 1300 450 100 150 215 300 440 840
Combi CTX0009 160 1450 450 100 150 215 400 590 990
Combi CTX0010 180 1600 450 100 150 215 400 740 1140
Combi CTX0011 210 1850 450 100 150 215 400 895 1295
Combi CTX0012 250 1995 450 100 150 215 400 1195 1595
Combi CTX0013 300 1860 500 100 150 215 400 1045 1445