Hello everyone I'm planing to build a stove or an outdoor woodboiler to heat my 20x100 high tunnel, i just built a double barrel stove..also have a hot blast ..but im needing to build something, i can fill up and it last for 12 hours untill i get home from work. does anyone have any ideas? ive not been to lucky finding a propane tank so ill have to start from mild steel.. i have to admit the hotblast has crappy burn times.. I lives in East KY i need to keep my temps ar 65 propane is just to costly would love to hear everyones ideas
Wood Stove Vs Outdoor Boiler for large greenhouse
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if i were to need 190k btu an hour or 200k btu an house and wanted to use one stove what size firebox would you use? i have access to all the firewood i need.. and can buy coal. i just need something to keep it at 65 for 12 hours
I agree, that is a commercial load. There are commercial pellet boilers with bulk tanks and stoker feeders that can put out that sort of heat. Froling has their wood chip boilers that use their precision dried wood chips. https://www.frolingenergy.com/small-commercial
Messersmith has their chip fired boiler https://burnchips.com/products/automated-outdoor-wood-boiler/
Although I have seen stoker fed wood boilers they are rare and mostly one off. Long ago I worked a few hours on large wood fired boiler with huge thermal storage tank for a large greenhouse but it was an one off. It might have 12 hours of thermal capacity but the other 12 hours required a couple of folks to be feeding it for several hours to charge it back up.
Messersmith has their chip fired boiler https://burnchips.com/products/automated-outdoor-wood-boiler/
Although I have seen stoker fed wood boilers they are rare and mostly one off. Long ago I worked a few hours on large wood fired boiler with huge thermal storage tank for a large greenhouse but it was an one off. It might have 12 hours of thermal capacity but the other 12 hours required a couple of folks to be feeding it for several hours to charge it back up.
well i put my info into the greenhouse Calculator site thats the btu it gave me but ill try using two barrel stoves with the hot blast total of 3 see what happens
Added for greenhouse to the tietle to reflect the heat load. A 20 x 100 high tunnel plastic greenhouse will lose a lot of heat. A boiler would offer the option of heating the soil which could be helpful depending on what crops will be growing in the greenhouse.
I'm wondering why is the propane heater set to 65º. What is the crop that's growing there? Will there be a lot of artificial lighting that also produces heat?
I'm wondering why is the propane heater set to 65º. What is the crop that's growing there? Will there be a lot of artificial lighting that also produces heat?
brenndatomu
Minister of Fire
A barrel stove won't have any better burn time than a hot blast does...I know a Kuuma VF100 wood furnace will go 12 hrs on a load, but you'd probably need a couple of them to pull that BTU load...a good gasifier boiler would be my recommendation...they'll easily do 12 hours, and pull that BTU load.
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