Stove and Cooker FAQs
As the burner is controlled by both the boiler thermostat and oven thermostat, if it is not maintaining the preset oven temperature, either of these stats could be cutting power to the burner before the desired temperature is reached. The two main causes of oven temperature not being reached are as follows:
- During cooking operation, heat is produced to the boiler which must be vented to the heating circuit to prevent the burner from shutting down. - The cooker must be able to automatically vent hot water to the heat system.
- Oven thermostat is out of calibration - Operational temperature settings of the oven stat should be checked and the stat replaced if required.
The 0-4 damper is a thermostatic damper for safety reasons and when the temperature of the water in the boiler exceeds 55 °C the thermostatic damper will begin to shut off the air supply to the stove. Should the water temperature continue to rise the thermostatic damper will continue to close and if the water temperature reaches 85 °C the thermostatic damper closes the primary air supply fully. Therefore when the boiler reaches temperature, adjusting the 0-4 damper will have no effect on the appearance/burn rate of the fire.
To ascertain if the damper is operating correctly, visually inspect that the damper is opening (setting 4) & closing (setting 0) when the unit is cold and when the flow pipe (top water pipe) from the stove is hot check if the damper is either partially/full closed (the closure of the damper will be dependent on the temperature in the boiler but it should allow a smaller opening than noted if the damper was set fully open when the stove was cold). If this proves to be the case, the damper is working within normal operating parameters.
To remove the back boiler and replace same with an insert boiler stove, will require the fireplace to be removed to allow access to remove the back boiler. To fit the Cara+ insert boiler model, it may be necessary to remove some of the block work surrounding the back boiler to allow for pipe fitting and the fireplace may need to be changed depending on the size of the fireplace opening (the Cara Plus fits into a fireplace opening of 16-18" wide & 21-23" high). The pipe work to the heating system should be capable to connect the insert so plumbing changes should be minimal provided the back boiler was originally fitted correctly.
The stove is supplied with a clay pot adaptor kit that allows for connection to an 8" flue liner but the existing chimney liner will need to be inspected for any cracks and in the event of the chimney exhibiting any cracks or leaks (not capable of withstanding temperatures in excess of 1000°C) a suitable flexible flue liner should be fitted. As the top baffle within the insert is removable, once the stove is connected correctly to the chimney system it will be possible to clean the chimney through the insert (i.e. from the bottom up).