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General Outdoor Furnace Discussion / Re: Making my boiler more efficient -- question

« on: December 22, 2011, 01:22:43 AM »

My system uses the following tubing and set up.

 http://www.trueleaf.net/pdf/Benchwarmer-Bro-2005.pdf

The fin type you have photos of are very hard to get and expensive. I have seen them in older boiler type greenhouses. Usually a few feet under the tables.

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General Outdoor Furnace Discussion / Re: Making my boiler more efficient -- question

« on: December 21, 2011, 05:53:00 PM »

I have two greenhouses with heated tables that use a radiant tube system. The water runs directly under the plants. This works best for rooting things up. Once the soil reaches a high enough temperature the pump cuts off.  The other two greenhouses are larger but have heat exchangers that blow hot air out.

 

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General Outdoor Furnace Discussion / Re: Making my boiler more efficient -- question

« on: December 20, 2011, 05:03:03 PM »

We are heating 4 greenhouses with this unit insulation is not the problem as much as just being over loaded. I may have a deal were I can try this new product out if so I will post any results.

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General Outdoor Furnace Discussion / Re: Making my boiler more efficient -- question

« on: December 19, 2011, 02:50:29 PM »

Sounds interesting.  It seems with the heatmor stove we have creosote has not been any problem YET. The fans tend to push out the smoke fairly fast. When it does seem slow opening the door and getting the fire really hot can burn it out. Of course this works not not sure how it may change if something is added. I have heard that a copper coil around the pipe does not take to much away from the heat inside the pipe. Not sure if this is true but said to work.

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General Outdoor Furnace Discussion / Making my boiler more efficient -- question

« on: December 19, 2011, 02:55:08 AM »

I have a heatmor boiler that we have been using to heat several greenhouses for over 10 years. We have it pretty much over loaded heating 4 greenhouses with one unit. We currently do not have the funds or area to add an new unit. So I have been trying to find a way to make this one more efficient. My first idea was to use copper tubing wrapped around a 4 foot stove pipe at the top of the boiler and have it pumped back into the system. Essentially catching some of the heat off the stove pipe which maybe enough to heat part of or most of one of the smaller greenhouses. I have not priced the over all expense and time it will take to make the copper tubing contraption. After searching the internet I found something along the same lines called the Aquastack apparently a device that would reclaim some lost heat out of the stove pipe. From what I have seen no one has responded in older post that has actually used the unit described? If so does it work and does it work well enough? Would I be better off building my copper coil? I would really like to hear more about this aquastack sense it maybe just what I would need to keep our water temps up higher and me from loading the boiler every few hours on cold nights. Any suggestions?