Above picture is after the cleaning. I wish I had taken a before picture.
Before you think about throwing a grill away, try cleaning it with Easy Off Oven Cleaner (in the yellow canister). You will be amazed at what it can do, I know it amazed me.
Preparing for our adventure, we knew that we wanted the ability to grill. Not only because we like to grill, but it gives us a backup to our stove and not cooking in the galley will help keep the boat cooler, when it is hot.
We acquired a Magma grill when we purchased our Gemini 3200 , a year ago June, but we never used it. The reason we never used it was it looked terrible on the inside and it would not stay lit. We were considering throwing it away, but we thought that we should try to clean it.
I cleaned it using Easy Off Oven Clean, in the yellow canister. Basically, I sprayed (coated) the inside of the grill with Easy Off, closed the lid, and allowed it so sit in the sun for 4 hours. When I came back and rinsed the grill, I was amazed. The grill almost looked brand new and now appears to be working. I guess it just needed a really good cleaning.
I'm so glad that we tried to clean the grill before throwing it way. The $3.54 cost of a canister of Easy Off saved us from purchasing a new marine grill with prices starting around $150.
Tip: I would not use the Easy Off near anything that is painted. It took the green paint off the propane canister.