That's cool. What's the temperature in the box?
thanks MIKE and AL,,,,,,,,,,,the temp in the box is 18.5 C with door closed and 11.3 C when the door is open [ to drop temp ]
this is achieved when the ambient is circa 20 C and the heat exchanger is fed by water at 16 C [ tank in the shade ]
the pump delivers 15 litres / min. and the lines are on closed loop ,,,,,,,,,,the smoke is gererated by apple and cherry wood
have a valve on the firebox which can be shut right down ,,,and should we ever need to lower temperatures could put dissapation fins on the 3 x metres of 50 ml S.S. pipe
many regards ,,,,,,brian