In issue 236 Roy Lee asked about unvented LPG heaters for the greenhouse. This is not a good idea, but there are gas heaters available that are vented through the side-wall that are easy to install, have millivolt controls so that no electricity is required, use either natural or LPG gas, and are available in several sizes (at least they were 15 years ago when I bought mine).
Mine have been in use for 15 years now and have been extremely efficient, trouble free, and have caused no problems with the plants. They are produced by: Southern Burner Co. P. O. Box 885 Chickasha, OK 73023 Phone (800) 375-5001 I hope this helps. Charlie _______________________________________________ the OrchidGuide Digest (OGD) [email protected] http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com

