I had a Valor Black Beauty (Model 349) installed last winter. I noticed then that the heat output wasn’t all that great but left things as they were. This year I notice the room temperature barely exceeds 19°C and am concerned that something has not been done according to the installation manual. The previous gas fire gave a good heat even though the efficiency was only about 50%. The screw within the restrictor elbow is fully open. Parameters of the fire are: Max output heat 4Kw Min output heat 1Kw Efficiency 74% (gross) Can someone please help.
4kw is'nt that high, if its 74% efficient that equates to 3kw. A lot of other fires convecter box and radiant fire are higher, usually 6.9kw to keep under the threshold for requiring an air vent. So even at 50% efficiency you will get 3.5kw out. There is no adjustment to gas consumption on modern fires, so unless the pipe work is under sized it should be correct.
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