Outdoor Wood Furnace Info

All-Purpose OWF Discussions => General Outdoor Furnace Discussion => Topic started by: bcanode on November 19, 2013, 07:02:31 AM

Title: Odd noise
Post by: bcanode on November 19, 2013, 07:02:31 AM

Best way to describe this is it sounds like something hard left in a dryer when it is tumbling.
It's happened a few times and it seems to be when the fire is really roaring during a heat up cycle.
Anything I should be worried about?

Title: Re: Odd noise
Post by: hondaracer2oo4 on November 19, 2013, 08:28:51 AM

What do you have for a boiler? Sounds to me like its either the firebox, water jacket or outer sheathing around the boiler expanding when a heavy heat load is on it.

Title: Re: Odd noise
Post by: bcanode on November 19, 2013, 08:56:16 AM

Heatmaster MF4000E

Title: Re: Odd noise
Post by: hondaracer2oo4 on November 19, 2013, 09:01:00 AM

Scott should be able to chime in here with some insight about that. All of the heatmasters are stainless correct? I know that my Hardy which is stainless can make some popping noises once in a while due to temperature changes.

Title: Re: Odd noise
Post by: baldwin racing on November 19, 2013, 09:52:02 AM

Quote from: bcanode on November 19, 2013, 07:02:31 AM

Best way to describe this is it sounds like something hard left in a dryer when it is tumbling.
It's happened a few times and it seems to be when the fire is really roaring during a heat up cycle.
Anything I should be worried about?

is it just fell down in and is bouncing around in the squirrel cage.....?  when calls for heat it kicks on and it bounces around in there?
kelly

Title: Re: Odd noise
Post by: bcanode on November 19, 2013, 10:48:20 AM

It's hard to describe. Sounds like the flames are periodically beating on the sides.  Hard to describe without sounding a like a who's on first skit.....

Title: Re: Odd noise
Post by: Scott7m on November 19, 2013, 11:57:27 AM

Its hard to say with out some more Info, in the past whIle running 5000e ive heard a thump or something under heavy load but not sure if thats what your hearing or not

Title: Re: Odd noise
Post by: idahohay on November 19, 2013, 01:05:03 PM

One thing that came to mind was is the boiler full?

Title: Re: Odd noise
Post by: bcanode on November 19, 2013, 01:19:26 PM

Could be described as a continuous thumping. Boiler is full.

Title: Re: Odd noise
Post by: hondaracer2oo4 on November 19, 2013, 01:46:44 PM

What happens when you open the loading door? Go away, continue, get worse? Sounds like idaho hay may be on the right track. Could be water boiling somewhere in the unit. Does the thumping slowly reside when the forced draft fan stops blowing?

Title: Re: Odd noise
Post by: ITO on November 19, 2013, 01:50:35 PM

What you are describing sounds like boiling water to me.

Title: Re: Odd noise
Post by: Flyfishjt on November 19, 2013, 02:57:48 PM

Sounds like backdraft! Open door and it'll go away.

Title: Re: Odd noise
Post by: hondaracer2oo4 on November 19, 2013, 04:29:24 PM

Not sure about the backdraft theory. A backdraft condition would be caused by a fire that has consumed all the available oxygen available to it but remains EXTREMELY hot and only needs an introduction of air to cause a massive explosion from the introduction of the much needed air.

Title: Re: Odd noise
Post by: Scott7m on November 19, 2013, 06:40:40 PM

The 4000e introduces air at the top of firebox as well as under the coal bed, the thumping "could be" the gases off the wood being burnt off by the top draft every moment or two