" After two decades in nice humid greenhouse the igniter is rusted to point where it cannot work" FWIW: After 20 some years, even the "Cadillac" of brands, Modine purpose built greenhouse propane heaters, are getting "long in the tooth"and may become unreliable. You may want to consider replacing it IMHO. Been there, done that. Best, m On Sun, Oct 31, 2021 at 12:55 PM Nicholas Plummer via pbs < pbs@lists.pacificbulbsociety.net> wrote: > Get a greenhouse, they said. It’s a relaxing hobby, they said. > > I keep my pilot flame burning all summer on my direct vent propane > heater—I figure its a small amount of propane in the grand scheme of > things, but I hope the heat will help to keep things dry around the valve > and thermocouple. Which means that something else will probably fail on > the coldest night of the year… > > After a couple of near disasters, I recently purchased a little wifi hub > with three wireless thermomenter/hygrometers for less than $100. Now I can > monitor the greenhouse on my phone, and theoretically it should alert me if > the temperature rises or drops below preset levels. > Nick > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > http://lists.pacificbulbsociety.net/cgi-bin/… > Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> > _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net>