By increasing system volume you can reduce boiler cycling.
A bigger volume is less susceptible to
temperature swings and therefore reduces system sensitivity. |
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GLEDHILL Buffer Stores
Stainless Lite Buffer Store
Buffer vessels are simply a duplex
stainless steel tank that contain a volume of water, increasing
the overall volume of the heating distribution system. This
extra volume of water is designed to absorb any extra heat
generated by the heat pump in low load conditions.
How a Buffer Store works
If the building cannot absorb the
extra heat generated the return temperature to the heat pump
will increase and potentially cause the heat pump to turn off.
If the temperature drops in the water returning to the heating
appliance then it will turn itself back on. If this cycling
occurs at a greater frequency than the minimum run time for the
appliance this is classed as 'short cycling'. The aim of a
buffer vessel is to remove the possibility of any 'short cycling
of the heating appliance.
Buffer Store Technical
These buffer vessels are designed
to work at up to 3.5 bar pressure and are designed for primary
water only. They should not be used for potable domestic hot
water and are not approved or intended for this purpose. |
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Buffer stores can be used on both vented
and sealed primary heating systems and are designed to withstand up to
3.5 bar of pressure. If you intend to install to a sealed system you
must do so in accordance with normal protocols and in conjunction with a
sealed system kit if necessary. |
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Stainless Lite
Indirect Buffer Store
Technical
Specification and Prices
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Description |
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90IND
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120IND
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210IND
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250IND
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300IND
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400IND
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Price £ Inc VAT |
360.60 |
378.89 |
457.15 |
493.76 |
553.47 |
630.53 |
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Height |
mm |
= |
920 |
1483 |
= |
2020 |
2030 |
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Diameter |
mm |
= |
550 |
550 |
= |
550 |
630 |
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Weight (empty) |
kg |
= |
22 |
33 |
= |
44 |
55 |
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Weight (full) |
kg |
= |
142 |
243 |
= |
344 |
455 |
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Capacity |
Litres |
= |
120 |
210 |
= |
300 |
400 |
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Standing losses |
kWhr/24hr |
= |
1.00 |
1.60 |
= |
1.93 |
3.33 |
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Direct Buffer Store diagram
(click to enlarge) |
Click for Buffer Store Technical Manual
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Indirect Buffer Store diagram
(click to enlarge) |
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Click for manual |
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Stainless Lite
Direct Buffer Store
Technical
Specification and Prices
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Description |
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90D
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120D
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210D
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250D
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300D
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400D
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Price £ Inc VAT |
261.27 |
287.15 |
346.88 |
406.46 |
477.25 |
536.62 |
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Height |
mm |
732 |
920 |
1483 |
= |
2020 |
2030 |
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Diameter |
mm |
550 |
550 |
550 |
= |
550 |
630 |
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Weight (empty) |
kg |
13 |
18 |
28 |
= |
37 |
51 |
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Weight (full) |
kg |
103 |
138 |
238 |
= |
337 |
451 |
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Capacity |
Litres |
90 |
120 |
210 |
= |
300 |
400 |
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Standing losses |
kWhr/24hr |
0.80 |
1.00 |
1.60 |
= |
1.93 |
3.33 |
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Schematic drawings of
typical buffer
store installations:
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Example 1:
(Left) Heat pump supplying direct buffer store, supplying sealed
UFH system |
Example 2:
(Right) Heat pump supplying indirect buffer store, supplying
seal UFH system |
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Example 3: (Left) Heat pump supplying direct buffer store
which in turn is supplying heating system and Stainless Lite HP
cylinder |
Example 4: (Right) Heat pump is supplying indirect buffer
store which in turn is supplying heating system and Stainless
Lite Indirect cylinder |
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