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Stainless Steel Buffer Store - Stainless Lite

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Stainless Lite Buffer Store

 
 

Heat pump buffer cylinders

The UK's Number One Supplier of Gledhill Products

 

By increasing system volume you can reduce boiler cycling.

A bigger volume is less susceptible to temperature swings and therefore reduces system sensitivity.

 

Gledhill Stainless Lite Buffer Store

GLEDHILL Buffer Stores

Stainless Lite Buffer Store

Buffer vessels are simply a duplex stainless steel tank that contains 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.

 
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.
 

Hurry! Price increase on 1st March 2017

 

Stainless Lite Indirect Buffer Store Technical Specification and Prices

Description  

90IND

120IND

210IND

250IND

300IND

400IND


Price Inc VAT 360.60 378.89 457.15 493.76 553.47 630.53
Height mm = 920 1483 = 2020 2030
Diameter mm = 550 550 = 550 630
Weight (empty) kg = 22 33 = 44 55
Weight (full) kg = 142 243 = 344 455
Capacity Litres = 120 210 = 300 400
Standing losses kWhr/24hr = 1.00 1.60 = 1.93 3.33


Direct Buffer Store diagram

(click to enlarge)

Click for Buffer Store Technical Manual

Indirect Buffer Store diagram

(click to enlarge)

Direct buffer store diagram

Click for manual

Indirect buffer store diagram


Stainless Lite Direct Buffer Store Technical Specification and Prices

Description  

90D

120D

210D

250D

300D

400D


Price Inc VAT 261.27 287.15 346.88 406.46 477.25 536.62
Height mm 732 920 1483 = 2020 2030
Diameter mm 550 550 550 = 550 630
Weight (empty) kg 13 18 28 = 37 51
Weight (full) kg 103 138 238 = 337 451
Capacity Litres 90 120 210 = 300 400
Standing losses kWhr/24hr 0.80 1.00 1.60 = 1.93 3.33

 

Schematic drawings of typical buffer store installations:

Schematic diagram of a buffer store with heat pump supplying sealed UFH system

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

Diagram showing indirect buffer store, heat pump and UFH system
Diagram showing heat pump supplying direct buffer store which in turn supplies heating system and an unvented hot water cylinder 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 Schematic diagram shower heat pump supply indirect buffer store which in turn supplies heating system and unvented hot water cylinder
 

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