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[woodbutcher]

Has anyone used a chimney cap on their OWB? I tried one that was meant for the HM chimney and it made a mess of creosote run down the pipe. I had to remove it. I just wanted to keep the rain out, seems like every winter we get a couple of inches of rain. Had 2 weeks of rain this winter. Anyone tried one of the cloverleaf caps? 

[hoardac]

I was just wondering the same thing have my old cap from my old boiler was wondering if I should use it or not.

[slimjim]

I can see possibly using them on a gasser but conventional style will typically plug up pretty fast, Wood Doctor had one that they used on their conventional that worked pretty well if you can find them but they were very expensive!

[E Yoder]

There is more moisture in the wood you load in the furnace then any rain that would come down the chimney. It'll steam out no problem. I only cap my furnace when the fire is out.

[Walleye]

Put a cap on mine last fall and had it plug with creosote twice. Ended up removing the screen and the band around the middle. No problems after that.

[BIG AL]

I put a bucket on my stack when I'm done for the season. Never seen any signs that the rain that went down the stack when it was running did any harm. Slim asked me where the cap was that came with it when I put the pipe on , I thought that was a shipping thing , probably behind the wood pile I guess. Never seen any use for a rain cap when it is running.

[mlappin]

I put a bucket on my stack when I'm done for the season. Never seen any signs that the rain that went down the stack when it was running did any harm. Slim asked me where the cap was that came with it when I put the pipe on , I thought that was a shipping thing , probably behind the wood pile I guess. Never seen any use for a rain cap when it is running.

Cap?

Ah…you mean the plastic shipping cap?

Five gallon bucket here as well when done.

[E Yoder]

I put a bucket on my stack when I'm done for the season. Never seen any signs that the rain that went down the stack when it was running did any harm. Slim asked me where the cap was that came with it when I put the pipe on , I thought that was a shipping thing , probably behind the wood pile I guess. Never seen any use for a rain cap when it is running.

 

[slimjim]

Ha ha, I remember that, I try to remember to tell customers now to save it, just looks better than a bucket for those who care but hey if you're a redneck you might as well look like one!

[woodbutcher]

The plastic cap that came with my boiler was nothing more than a plug. I noticed after I bought it that the plug filled with water and then somehow ran down the inside of the chimney and the whole inside was wet. I used floor dry to dry it out. I had the boiler about 8 months before I installed it and this was the first thing I checked. I removed the plug and put a pail over the chimney and it stooped the rain form coming in. Plug went in the trash. I only will use a pail in the off season. Thanks for the info on the cap. I guess I'll be running with no cap, sounds like using a cap is more of problem than a help.

[slimjim]

Yes on the conventional they are more nuisance than good, I wish I could find the info on the ones WoodDoctor used, they worked very well!

[RSI]

Were the WoodDoctor one something like this? http://www.pioneermetalworx.ca/caps

[mlappin]

Were the WoodDoctor one something like this? http://www.pioneermetalworx.ca/caps

I’ve seen a few of those clover leaf caps around. $$$

[slimjim]

Yup, exactly the clover leaf one without the flat bottom, they kept the rain out with very little restriction, 12 years on my Wood Booger and never plugged once!

[schoppy]

I'll snap a picture of the one I made for my G200 and post it tomorrow hopefully. Real easy to make with a little galvanized sheet metal. I did not have a cap on my G400 originally. We had a lot of rain last year, that along with the unit idling a lot because it was over sized and mild weather caused a lot of creosote to run down the back of my unit. It leaked out of the venter housing plate completely covering the back of the unit with creosote. Now I put on the cap if rain is predicted or the weather gets mild.