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Richard · 08-10-2009, 05:23 PM

Heat rises.

Tony, two winters ago when my dragon fruit were tiny I strung up some blue-colored "C" type holiday lights about 18 inches from the plants. (Initially closer - but noticed some heat scars.) These were connected to a thermostat for a household forced air heater: these are designed to come on below a user-selected temperature. I set mine for 40 F. Worked great -- of course here in San Diego the temperatures in that area would not have dropped below 33 F. I calculated that they cost less than a penny an hour to operate.

08-10-2009, 05:23 PM	#9 (permalink)
Richard un-Retired Richard's Photo Gallery Location: Vista, CA Find me on the map! Zone: USDA 10b Name: Richard Join Date: Jan 2008 Posts: 9,674 BananaBucks : 994,995 Feedback: 9 / 100% Said "Thanks" 3,636 Times Was Thanked 12,537 Times in 4,719 Posts Said "Welcome to Bananas" 1,685 Times	Re: low voltage lighting Heat rises. Tony, two winters ago when my dragon fruit were tiny I strung up some blue-colored "C" type holiday lights about 18 inches from the plants. (Initially closer - but noticed some heat scars.) These were connected to a thermostat for a household forced air heater: these are designed to come on below a user-selected temperature. I set mine for 40 F. Worked great -- of course here in San Diego the temperatures in that area would not have dropped below 33 F. I calculated that they cost less than a penny an hour to operate. __________________ Back in business at plantsthatproduce.com