The Orchid Forum, for the UK and Europe (previously known as The UK Orchid Forum) • View topic - Gas heaters?
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 Post subject: Gas heaters?
PostPosted: Fri Apr 18, 2014 9:36 am 
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Joined: Tue Dec 20, 2011 9:34 pm
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I live in: United Kingdom (England)
My nearest city or region is: Cheshire
Anybody tried them and had problems?

Reason i ask is because some gas heaters produce ethylene as a byproduct which is known to kill orchids (its a plant hormone), i also noticed that some greenhouse gas heaters sold in the uk say not suitable for orchids. It seems normal practice in commercial or at least larger greenhouses to vent any exhaust fumes outside of the greenhouse because if this?

Any bad experiences out there?


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 Post subject: Re: Gas heaters?
PostPosted: Fri Apr 18, 2014 7:27 pm 
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I use a Hotbox propane heater and have done for many years without any problems whatsoever. In fact, I am about to buy another for my second greenhouse because the price of paraffin has gone through the roof. You do need to make sure that sufficient fresh air gets to the burner, so consequently need a crack of window for the fumes to escape. Make sure you get one which has variable flame, that is, goes on full at start then turns down gradually automatically as temperature is met, then eventually switches to pilot.
Watch out too whether the thermostat needs electricity. I use mine during electricity outages so the thermostat is mechanical without electric but I see that some heaters do need electric these days.
Care about connection. If you want natural gas do get a Gas Safe registered person to do the connections. If on Propane make sure you get two minimum 19kg tanks with an auto changeover valve for when one tank is empty.
Richard


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