Propane Heat?

Its getting cold outside. My grow area, flowering/veg sections, is in a room that is 5'Wx7'Hx25'L with an open window for fresh air supply. Closing the window is not an option. Leaving the door open is not an option.

I need some heat for the winter months. I understand that a propane heater might fit the bill. I believe it will even emit CO2 as well.

I have found several wall units that will work, but none without a thermostat.
Can I somehow retro fit one?

Perhaps any other suggestions. Thanks:thumbsup:

..any good unit should come with a themostat. ..or at least be adapted to one. A mercury switch is best. My girls loved the fumes from my forced air propane gas-log fireplace. As did I.

no you need a bigger light to make heat :)

Im presently running two 400 watt hps. My grow is even insulated, air tight with one hurricane 6" 630 blower and a dayton 465 blower. I have great vents.

It really gets cold here...fresh air gets below zero.

The propane heaters ive seen only have a low-med-high settings. I dont believe they will cut on or off at a specific setting.

...a remote wall mounted thermostat (mercury switches are better than contact switches) can be placed anywhere..they are non-electic. Mind has that. You must be looking at very cheap floor models, that run all the time. You want something to control on and off by temperature.