Solar Panel Kits.

At last a financially viable kit that can provide all your hot water for 3 months of the year for just £1,225.00 + VAT & Del

ready to add Biofuel boiler in a hybrid system £ 1,715.00 + VAT & Del.

Kit includes, 1050/450 twin coil cylinder or 210litre thermal store cylinder - Twenty 58mm by 1800mm long evacuated tubes - full installation kit including pump expansion vessel & electronics.

All you need add is copper pipe, joints, bleed valve and glycol & water mixture & day or two's labour.

Look at diagram below and you will see that you can easily combine your existing or new boiler and have an added bio-fuel/log boiler & solar panels. This will cut your oil bill by up to 75%.

Our government have decreed on our behalf that solar kits are at 5% VAT if fitted. This is as always a bit vague.

They have also said that wood boilers are at 5% if fitted and if the boiler is over 7 Kw. I give some boilers that qualify below. (Chimney lining does not qualify as you might take out the wood stove and install a multi fuel or coal burning one?)

Thermal Stores.

Prices

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.

The thermal store concept has been around for many years now, and I have personally used one in my home for 15 years. The beauty of the system is in it's simplicity, 2 or more boilers/heat sources connected together with out need for electronics, valves or human interference.

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 out put 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 SIMPLE STUPID'

To order email or phone

info@cosi.co.uk  or tel. 01 227 780 830 or fax 01 227 787 588