Hey guys, thanks for the comments on my install. Haven't been here in a while.

Yes, I drilled the 4" holes with a brand new hole saw in reverse. Also I used blue painters masking tape on the fiberglass first to protect the gelcoat from splintering. All four holes came out perfectly clean.

Yes, this is a Heatercraft unit.

Yes, I routed the heater hose under the floor, and it was a fairly easy install after hours of planning and preparation.

And Yes, the entire clan of friends and family greatly appreciate my efforts to keep everyone comfortable. Not exactly a challenge here in Northern Cali, but we all love the morning/evening heater sessions nonetheless!!!

Happy Springtime Upgrading to you all!

~Chris