hot water heating

[Charles]

I am beginning to see your point now.

Although boilers and traditional hot water/steam heating systems are not used extensively in this area, there is a variation of these systems that is becoming increasingly popular among Texas growers. The use of hot water for "under pot heating" has been proven to be extremely effective and efficient. In these systems, water is heated in a modified hot water heater and pumped through an extensive tubing system that is mounted to the bench. The heat is radiated from the tubes and absorbed by the pots that are placed directly on them. The media in the pot is maintained at a constant temperature which allows air temperatures to be held much lower than with traditional systems. The overall effect is improved plant growth and reduced energy costs.
Greenhouse Heating Requirements