The first phrase is correct.
Most glass furnaces are fired by gas: some have electric boost. The few all electric furnaces are the most expensive to run.
I know. You are clueless and just babbling.
The first phrase is correct.
Most glass furnaces are fired by gas: some have electric boost. The few all electric furnaces are the most expensive to run.
I know. You are clueless and just babbling.
Adrian,
Edited to include gas,
Now please respond to the rest of the post