boiler link-ups :

When a property has more that one heating source, it can be very economical and versatile in use to link them together to supply the entire demand for heating and domestic hot water.
As the cost of both gas and oil fuel continue to rise, it is possible to make huge savings by linking a woodburning or multi-fuel central heating stove or range cooker to your existing heating system. Add thermostatically controlled valves to your radiators, and your existing gas or oil fired central heating boiler will only be required to 'top-up' your heating requirements.
Pay back times will obviously vary, but it is possible to save enough on existing fuel bills to recoup the costs of the required equipment within one year.

In principle, the requirement to link two or more boilers into one heating system is relatively simple to arrange. However, in practice there are physical difficulties, possible dangers, and in many cases high financial cost to the owner.
The difficulties lie in linking the boilers, so that one boiler when in operation does not supply the second boiler with hot water when it is not in operation.
Attempts to link boilers in domestic situations have resulted in solutions which are either dangerous, unnecessarily complex, expensive or a combination of all three. Also, in numerous situations an unacceptable level of domestic upheaval is produced during installation.

The use of a Dunsley Baker Neutralizer offers a neat solution to all of the problems just highlighted. The neutralizer fixes the neutral point location of the system. The cold feed and open vent are both connected to the system at the neutralizing chamber and provided that both boilers are only connected through this point then pumped or gravity circuits connected to the chamber can have no hydraulic interaction.
This means in effect that the pumped circuit from, say a gas or oil fired boiler will not induce flow through a solid fuel boiler via its gravity circuit. The solid fuel boiler will, however, feed hot water into the system, thus achieving the desired objective.

The manufacturers are continuing to produce updated information on system design and they welcome requests for advice on situations which deviate from their typical system layouts.
Dunsley Heat : 0148-468 2635