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10:32 am
March 26, 2010
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I manage to survive (just) in a 400sq ft workshop. Quite often I run my gas forge with 3 off 3/4" burners running at full tilt. As you can imagine the heat can get just about unbearable. Sweat drips off me, down past my crown jewels and collects in my boots.
I've got an induction forge coming but will still need the gas forge for those long heats that makes them so superior to coal forges :mstickle:
I can see two options
1/ put a hood and flue (I've got an inline extractor fan I can use with it) over it.
2/ use a "recycling" / reverbatory forge, ie the exhaust gases preheat the incoming air
Would the turbulence of option 1/ affect the running of atmospheric burners, maybe blown burners would be better?
Is option 2/ a lot of messing around for little gain? I do like the idea of this because it just seems SO wrong pumping out all that heat with the exhaust gases, wrong on so many counts.
1:32 pm
June 24, 2010
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Remember that all the heat from a gas forge ends up in your shop. I haven't seen efficiency figures for the recuperative forge, but even if it uses 50% less fuel, you've only reduced the heat added to your shop by 50%. The recuperative forge may be a great way to reduce propane use, but I don't think it eliminates the need for a hood.
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