Non-Electric Freeze Protection - Small Green Houses
Printer-friendly versionI read the post on the electric solution.
Really would prefer a propane solution.
Does anyone know of a small propane heater that can be set to freeze protect.
I would like to run it off an ordinary propane tank (Like for the grill)
I am deciding of 50-100 sqft greenhouse.
Thanks in advance
rob
this seems to be an old thread but I will Post anyway.. you do need some electric to run most propane radiant heaters.. I would use only the radiant. . i do have one that does not need electric but its very un reliable at cold temps.. seem ok above 50 deg.. below that its hit or miss. . the one i run in my GH 144sqft. is 25kbtu radiant. i tried the small 20 grill tanks against the man. specs. it did work but the problem is green houses are hard to heat at freezing temps and really suck up the propane.
i was going through 1 20lb cyl every other day... it gets old real quick.. and your paying a premium on propane at that level..I went with 100lb cyl ... i get a buck off per gallon this way so its well worth it... and i personally dont think its too bad to lug it around to get it filled..178lbs filled... but if you learn how to roll it on edge its simple to move around.. or get a cart. ... either way.. most heater manuf. require a 100lb min tank. .
When you say "freeze protection" I'm assuming you want to have a thermostatically controlled unit that will kick on when the temp gets too low. Unfortunately there really isn't a propane solution that I'm aware of to this, since themostatic control requires electricity to function.
There are plenty of small propane heaters that use a BBQ grill tank or even smaller, but you have to manually light them with a push button ignitor. The smallest propane heater I'm aware of that is thermostatically controlled is an HD30, which isn't the most affordable option and is a lot of heater for that size house.