| If you see smoke, check with your wood heat dealer or chimney sweep on further advice on when to replace the combustor. |
| Cleaning the combustor once a year, preferably when your flue system is serviced, is sufficient for most users. |
| During supersonic flight, the fan may be feathered, and a surplus of fuel may be introduced into the core combustor. |
| In the energy recovery unit, up to 600 tonnes a day of refuse will be directed to a three-stream fluidized bed combustor. |
| The combustor is a conventional one, with a reverse-flow design. |
| A new concept with an indirectly heated calciner is presented, where the heat for calcination is transferred by means of heat pipes from an external combustor. |
