What are the advantages of a hot water heating coil built into ...

[Bob-Dole]

What are the advantages of a hot water heating coil built into the paved floor of a greenhouse where plants are grown on the floor?
 
  What will be an ideal response?

Question 2

Why do low energy radiant heat systems use 20-50 less fuel than conventional heaters?
 
  What will be an ideal response?

[FergA]

Answer to Question 1

It places the heat where it can warm the roots and plant for better growth
than an overhead heat source and it allows the grower to dry the floor after plants
have been watered. This keeps the plant foliage drier, thereby reducing diseases.

Answer to Question 2

1) The exhaust temperature is lower, thus more of the heat of
combustion is used for heating. 2) Conduction heat loss is lower because the
inside to outside temperature differential is lower due to a lower inside operational
temperature.

[Bob-Dole]

Both answers were spot on, thank you once again

[FergA]

Great! Please up vote