Buffer TanksWe supply German manufactured hot water unvented buffer tanks which are specifically designed to combine large solar hot water systems with multiple alternaive fuel sources such as solid fuel boilers (wood logs, wood pellet), gas or oil boilers, or heat pumps, to provide your home with domestic hot water and space heating support. Model
| Capacity (litres) | Dimensions H x W (mm) | Weight Empty (kg) | Weight Full (kg) | Internal Heat exchanger coil (surface area m2) | RATIO HP 500
| 500 | 1840 x 850
| 104
| 629
| no
| RATIO HP 800
| 800 | 1840 x 1040
| 130
| 920
| no
| RATIO HP 1000
| 1000 | 2222 x 1040
| 145
| 1125
| no
| RATIO HP 1500
| 1500 | 2222 x 1240
| 200
| 1675
| no
| | RATIO HP 500-G | 500 | 1840 x 850 | 144
| | YES (1.9)
| RATIO HP 800-G
| 800
| 1840 x 1040 | 190
| | YES (3.0) | RATIO HP 1000-G
| 1000
| 2222 x 1040 | 205
| | YES (3.0)
| RATIO HP 1500-G
| 1500
| 2222 x 1240 | 270
| | YES (3.5)
|
Energy Efficient DesignConvection Brake fitted on the cylinder pipe connections makes it possible to lower heat losses by up to 50% per pipe connection. The pateneted design of the barriers separates the water cooled in the connection pipes from the hot water content of the cylinder. Annual cylinder heat losses are thus reduced by 10% to 20%. 
Domestic Hot Water Preparation
The Water Buffer Tank can be used with an optional instant hot water preparation device which takes mains pressure cold water and heats it up to domestic hot water temperature via the hot water stored in the buffer tank.   Recommended Solar Collector Area| | BT500
| BT800
| BT1000
| BT1500
| Recommended solar collector area (m2)
| 10 | 15
| 17
| 20 |
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