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[sstan]

I posted under the NC topic but will take any imput.  Who has a spark arrestor/ rain cap on thier forced air stove?  Mine blows sparks like crazy and if I wnat to use it this summer I need something .. any ideas?

steve

[jackel440]

I know there is some available ,but i don't have a link handy.I would think you could get a cap at a lumber yard to fit the pipe size of your stove without too much trouble.

[John D]

Mine too,I had 2 fires already,even with the rain cap,homemade arrstor it still sparks like crazy. I think the only solution is going to be to extend the chimney (which I do not want to do),or make up a draft door,and run the shaver on natural draft only.To be honest ive been thinking about doing that anyway,the fan just seems to push the heat right out the chimney,and burn the wood faster.

   With my Shaver,my idea is to make a new ash door,one with a draft flap door in it,and install a grainger solenoid on it,and a cover to protect it.I think the draft door needs to be a lot larger than the feed pipe that the fan blows thru,so thats why i am going to build a new door.This should stop the sparks,and improve efficiency due to a slower ,steadier burn,and the oxygen feeding the front of the firebox first,so the fire burns front to back,not back to front like a shaver does with the fan coming in from the rear.

[Jason]

My Hardy H5 originally had a flat plate right under the chimney and it never sparked to ammount to anything.  Over time the plate (maybe 18 or 20 gauge stainless) warped and would occasionally fall into the furnace.  This winter I noticed it was gone and could find no trace of it in the furnace.  It was maybe 8" by a foot with the 2 8" ends bent up 90* about an inch in from the ends.  Now I get more sparks.  The thing just sat on 2 rods that are there for that purpose right under the chimney hole.  I'm going to replace that plate this summer but I've been thinking about a rain cap myself.  I have heard, however, that the relatively small holes in the arrestors for the smoke to pass through will creosote up and need cleaned every once in a while.  To me that doesn't seem like a real big deal.

[mikenc]

I would think any stainless cap with spark arrestor would work. Probably work better with at least a 2 or 3 foot piece of pipe added to chimney. You might check your local HVAC supply for cap.

[jon d]

Using spark arrestor/rain cap from central boiler. Natural draft, no fan. Only notice sparks when filling furnace. Only problem was in march during long burn cycles, the screen in the cap got alot of build-up. This shut off exhaust exiting the furnace. Had to take the top section and cap off and clean.. No other problems besides the cap, I think,  causing smoke to hover lower the the ground??