Outdoor Wood Furnace Info
Outdoor Furnaces - Manufacturers WITH EPA-Certified Models => Central Boiler => Topic started by: adamant on October 19, 2008, 06:13:15 AM
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was out there today to check on her and the damper was open and it
sounded like there was a fan running. even after the damper closed i
can hear it .. is there a fan?
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I don't have a Central Boiler, but I did a lot of research on them when purchasing my owb. My understanding is that Central Classics use a natural draft, but I think a fan can be installed as an added option.
If you know the damper closed, there shouldn't be any fan noise if you do have one. I also believe Central recommends the circulating pump be installed on the side of the boiler in the service compartment. Maybe you were hearing the pump?
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Did you figure out what the noise was? I hear it on my 6048 also. Is that the noise of the relay holding the door open?
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no not in the relay area..(different sound) sounds like it is coming from under the roof..
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First year with 5036.. Havn't heard much noise with the damper closed , just the very quiet hum of the pumps.
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I have a little buzzing noise coming from the door. The damper was shut for the first time today and I listened for that buzzing and it was gone. I have no idea what noise could be coming from the roof though...?
It's not a steam leak or something is it...?
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It should not creating any steam. I have no ideal what noise you'd hear from the roof. Make sure your plastic/metal fill cap is not to tight.??? Really don't know.. mine's quiet after damper's closed..
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If you're sure your damper is closed it's more than likely the pump. It should be a very low sound and you'll here it all the time. If you're not sure unplug your pump and then you'll know.
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Did you ever figure out what that noise was? :-\
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Has anyone added a fan to their Central Boiler? I'm thinking about installing a draft inducer to mine after 4 winters. My unit burns pretty good (I have 3 sections of stack) but it just makes sense to me that a fan would create a hotter fire, burning more of the gases in the wood. I do notice that sometimes when I open the door the fires flares slightly because of the extra boost of air it gets. What do you think?
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Has anyone added a fan to their Central Boiler? I'm thinking about installing a draft inducer to mine after 4 winters. My unit burns pretty good (I have 3 sections of stack) but it just makes sense to me that a fan would create a hotter fire, burning more of the gases in the wood. I do notice that sometimes when I open the door the fires flares slightly because of the extra boost of air it gets. What do you think?
i dont think it would hurt but the flash you see occasionally will still happen...this happens mostly on shutdown of the draft, after you have had a good burn going and you shut off the supply air the fire is still burning hot untill the air is used up, then the fire starts to die and cool down from lack of air but the wood is still hot and producing gas...gas with no air does not burn...if you open the door at just the right time the coals are hot enough to ignite the gas when they get that blast of fresh air from the open door
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ckbetz: is that a rhino in your avatar?
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i found out what it was. the hot water.. after the damper closed (185 deg.) the water jacket under the roof is where it coming from..
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As far as that flash goes, WillieG is right. I have a Hardy H5. It has a big door on the front for wood and a small door below it, under the grates for the ash. All Hardys have these 2 doors. There's a great big red warning lable right beside the big door saying to always open the little door first or you may be subjected to a flash. It's most likely to happen, as Willie said, right after the fan shuts down and the embers are still hot. It's like a bomb going off inside the furnace-unreal how big and fast the fireball can be. Sometimes if someone is over visiting I'll flare it on purpose just to scare them. But in all seriousness if you don't realize that can happen you are at risk of serious burns. My dealer was VERY insistent that we always open the lower door first. That gets some air to the fire and the flare is contained inside the furnace where it belongs.
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Thanks guys, I didn't mean for what I described to sound like what you are talking about. I was talking about a fire in a burn cycle that just simply burns a little better when I open the door. I've experienced the flash too and know exactly what you mean. I even timed it perfectly once (accidently) and had a "poof" that actually blew the door back at me. Very interesting.
Thanks for your comments, I appreciate your thoughts. Wow this forum is growing with some good people on it now. :)
Almost forgot. Adamant, it's a Kawasaki Teryx. It's a little wider/longer than the rhino. I love it, it rides over whoops like a cadillac and hauls as much as I can get it in, or as much as I can tow behind it. Right now there are still a few '08's out there with some serious discounts. I should be able to clean up around the property pretty well with it. I don't have much flat and can't get my truck in and out of most places. The added bonus is the family of four can all go riding with the jumpseat we put in the back. We've had a blast with it so far.
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ckbetz...i think your idea of adding another blower to increase the air flow during a burn cycle is worth the effort..it is kind of a "research and development" thing soif i were to do it i would make a way to throttle the second blower down right from wide open to completely closed so you could "play" with the amount of air delivered to get the best results?
good luck and keep us posted if you go ahead with it
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Well Willie, my Central Boiler doesn't have a blower at all now, it's natural draft. There's just a servo that opens the draft. Central Boiler maintains that there are only certain circumstances that would require a draft inducer since their stoves are made to expell the gases so well without one. Anyway, I noticed a better burn by adding a joint of stack and would add more if I didn't need to guy it off of something so I'm thinking the draft inducer would make it burn quite a bit hotter. Thanks for your thoughts.
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i have a home made OWB and i now have one 150 cfm blower feeding it and i have another on the shelf as a spare..in the past i have thought of adding the second one with a longer feed tube to reach the back of the 5 foot long firebox to induce better combustion as well...if you proceed let me know what you think the results are. I may add mine for the next burn season
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I'll let you know if I decide to add that to my already huge spending spree this winter (24x24 garage, Teryx side by side, windows, siding, etc.). It never ends..hehehe