Here's a new one- Engraved Radiator

[mdengraver]

Here's a new one - Engraved Radiator

 

[mdengraver]

I guess this design is probably casted?

 

[Leland Davis]

It is cast but someone had to carve the casting blocks.

 

[thughes]

increases the surface area.

 

[mdengraver]

increases the surface area.

So creates more heat.