Phone COSI on 01227 787 587

or visit our show room at 58/60, Wincheap, Canterbury, CT1 3RS

Thermal Store for Solar Panels

Prices these exc. VAT, which can be 0%,5% or 15% depending on installation.

Size	1500 X 450	1500 X 500	1800 X 450	1800 X 500	1,950 X 450	1,950 X 500
Volume aprox. Litre's	210 Litre's	250 Litre's	250 Litre's	320 Litre's	270 Litre's	355 Litre's
Basic with hot water coil	£ 856.00	£1,118.00	£ 900.00	£1,175.00	£ 994.00	£1,269.00
Extras
F & E + 270mm on height	£ 68.75	£ 68.75	£ 83.75	£ 83.75	£ 83.75	£ 83.75
Solar coil	£ 75.00	£ 75.00	£ 75.00	£ 75.00	£ 75.00	£ 75.00
70mm insulation	£ 37.50	£ 37.50	£ 37.50	£ 37.50	£ 37.50	£ 37.50
100mm insulation	£ 100.00	£ 100.00	£ 100.00	£ 100.00	£ 100.00	£ 100.00
Emersion heater boss (each)	£ 12.50	£ 12.50	£ 12.50	£ 12.50	£ 12.50	£ 12.50
Emersion heaters (each)	£ 31.25	£ 31.25	£ 31.25	£ 31.25	£ 31.25	£ 31.25
T/stat & pocket	£ 31.25	£ 31.25	£ 31.25	£ 31.25	£ 31.25	£ 31.25
Carriage	£ 75.00	£ 75.00	£ 75.00	£ 75.00	£ 75.00	£ 75.00
Total (add up your options)

Basic thermal store is complete with; 15 meter finned water coil, fitted with thermostatic valve, 40mm sprayed foam insulation, 1 off 28mm boiler flow and returns, 1 off 22mm boiler flow and returns, 2 sets of 22mm heating flow and returns. Fill and drain plus 22mm vent. Its include delivery to main land UK.

F & E is complete with high temp ball valve for solid fuel heating.

Solar coil is complete with thermostat pockets top and bottom for sensors. It is advisable to have the extra insulation with solar panels if there is the room.

You can have 1 or more emersion heaters to make use of cheaper night electricity.

All prices plus VAT @, 15% if bought separately, but only 5% if bought with solar system or wood boiler over 7kW, plus installation.

Some Some manufacturers advocate the use of cheaper plate heat exchangers. There are a number of problems going down this design road;-

1. The passages ways on a plate heat exchanger are very small, in a hard water area a water softener must be used, plus a filter system, other wise this type regularly clog up and need replacing. (They are used in all gas combi boilers, hence the low cost and short life)
2. No electricity - No hot water as they require a pump and flow switch.
3. Pumps and flow switches ware out and go wrong, more maintenance, servicing and of course cost in the long run.

With the above problems and very little cost saving by the time you have bought the pumps and fittings, I cannot see any advantage in using a plate heat exchanger system. Our thermal store have a 12 meter long 15mm diameter finned copper coil. The output depends on the house flow rate and the temperature inside the store but is easily 25-30 litre/min. More than enough for 2 showers and basins. If you need more hot water, 3 bathrooms etc etc, you are better of with 2 cylinders, and charge the second hot water cylinder indirectly from the thermal store. Either a pump fed, unvented or using conventional cold water tanks in the loft. If in doubt email me, putting more plate exchangers or large thermal stores will not help as it will be constrained by the flow of water into the house.

KISS principle  'KEEP IT STUPLIDLY SIMPLE'

If you want more than 2 bathrooms or 3 showers link a simpler thermal store to an unvented cylinder.

email to ask question