Outdoor Wood Furnace Info

Outdoor Furnaces - Manufacturers with NON EPA-Certified Models Only => Shaver Furnace => Topic started by: ambonci on November 16, 2014, 06:47:58 AM

Title: knocking noise
Post by: ambonci on November 16, 2014, 06:47:58 AM
I fired up my stove yesterday after a long summer of upgrades to my 165.  BTW the upgrades are working great.  the Ranco is awesome.  Anyway, I noticed when the blower kicks on and the water temp starts to come back up I can hear a loud knocking noise coming from stove.  when it gets up to temp the noise stops.  it sounds like something is loose and banging inside water jacket.  has anyone ever experienced this?  stove is working great with all new insulation and the new ranco.

thanks
Adam
Title: Re: knocking noise
Post by: Dougr6 on November 16, 2014, 06:55:09 AM
Could it be "steam knock" from heating water expanding?
Title: Re: knocking noise
Post by: ambonci on November 16, 2014, 07:33:41 AM
could very well be.  Its just odd
Title: Re: knocking noise
Post by: Steinacher Sales on November 16, 2014, 07:38:24 AM
Are you heating to higher temps. then before the upgrades?

Greg Steinacher
618-401-0726
Title: Re: knocking noise
Post by: ambonci on November 17, 2014, 05:32:36 PM
No im heating to 170 with 7 degree differential.  last year I heated to 180 most of the year.  I remember it doing it last year the more I think about it.  its just an odd sound that's all.  last year I thought it was the hot water coil banging around but now that the coil is deleted its still doing it so its not that  :D
Title: Re: knocking noise
Post by: hill dweller on December 09, 2014, 06:18:19 PM
I get this noise too only at the front i think its from the return water not being circulated to the front of the furnace.
Title: Re: knocking noise
Post by: victor6deep on December 15, 2014, 07:52:01 PM
Turn your pump speed up and the knock will go away.
Title: Re: knocking noise
Post by: ambonci on December 17, 2014, 07:33:32 PM
Turn your pump speed up and the knock will go away.
I did and my noise went away.  whats the logic behind it?