Originally Posted by Trophyduck
SO let me add this.....IS it really that much more advantageous to have the underbelly enclosed, regardless if it is heated or not?
I just bought a new (used) one and the shop tech said it really doesn't help much.....more of a "gimmick".
insulation will help
prevent freeze-ups. A single layer of 5mil plastic that prevents the wind from blowing around the pipes will make some difference.
However, proper amounts of insulation
(based on the expected climate) along with introduction of additional heat will
prevent the water in the lines and tanks from freezing.
So, yes the corrugated plastic underbelly cover can be classed as a gimmick. But, pump oodles of warm air into that space and it actually works.
Do the insulating job correctly and you'll use much less energy to accomplish the same goal.