I will agree with Paul, look at Modine Furnaces, I have a 10 year old model with a glow plug ignition and it works great. Like any furnace, you want to have it inspected every couple of years. I bought overkill on my furnace, to cover the extreme cold we can get. I have seen -50 degrees F with a wind chill of -90. I was loosing 10 degrees and hour once the sun went down. With my new insulation, glazing, and this furnace; I should be able to stay above freezing even in weather like that. My only worry then is loosing electricity and I am looking at an emergency generator to cover that.
Tom /----------------------------------------------------------------------- | Tom Hillson Orchid Grower Specializing | [EMAIL PROTECTED] In Paphs and Pleurothallids | http://www.orchids.iastate.edu ------------------------------------------------------------------------ |"There is always room for one more Orchid!!" On Aug 19, 2007, at 1:31 PM, Paul LeBlanc wrote: > Look at a Modine Hot Dawg heater. Modine makes greenhouse heaters > but this > one is designed for use in a garage where there is a concern for > noxious > gases. Just after I bought mine they came out with a version for humid > environments (sigh). They use glow plug ignition with failover > safety and > power venting. It worked like a charm all last winter. > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Nicholas Plummer > Sent: Sunday, August 19, 2007 1:30 PM > To: orchids@orchidguide.com > Subject: [OGD] direct vent gas heaters > > For the past five years, I've been using a Southern > Burner vented heater in my greenhouse, but while I > have a new greenhouse under construction, I'm thinking > about upgrading to something a bit more efficient. > I'm considering a direct vent heater, either Empire > DV35 or Sterling SF30 with ~24,500 BTU output, as that > would allow me to seal up the greenhouse better. The > Empire has a standing pilot light, passive exhaust, > and sits on the ground. The Sterling has electric > ignition, hangs from the ceiling, and has power > exhaust. Does anyone have experience with either of > these brands in a wet greenhouse? > > I'd prefer to have the heater at ground level and am > wondering if the Sterling can sit on concrete blocks > instead of hanging. I'm a little concerned about the > pilot light on the Empire, as the pilot on my Southern > Burner went out a few times. Does the Empire remain > lit reliably? Electronic ignition and power exhaust > of the Sterling isn't a worry, as I plan to have a > backup generator installed for power cuts, but I don't > know if it would have a significant effect on > efficiency. > > Any comments or other recommendations? > > Thanks. > > Nick > -- > Nicholas Plummer > Durham, NC, USA > > > > > ______________________________________________________________________ > ______ > ________ > Looking for a deal? Find great prices on flights and hotels with > Yahoo! > FareChase. > http://farechase.yahoo.com/ > > _______________________________________________ > the OrchidGuide Digest (OGD) > orchids@orchidguide.com > http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com > > > > > _______________________________________________ > the OrchidGuide Digest (OGD) > orchids@orchidguide.com > http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com _______________________________________________ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
