Chimney question. for new wood stove

Wayco Wayne_2

at my car dealership has a rental property where they want to install a wood stove in the basement to supplement heat. The installer said he was going to pipe the flu into the chimney for the oil furnace. He called me and asked me if this was all right. I said I didnt think so but I'd check here at heating help. Does anyone have knowledge in this area? WW

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Bob Harper_2

wood stove venting

No, wood cannot share with any other fuels or appliances. You will need an insulated listed liner installed dedicated to just that stove.

Get a chimney contractor or hearth pro in there before someone burns the house down. If they don't have a clue about the venting, they certainly don't have a clue about clearances to combustibles either.

Hire a pro!
Bob

hot_rod

wood heat in a rental property?

that makes me nervous. It's not the best appliance for in-experienced users.

CO, combustion air, over temp protection, plenty of issues to be concerned with.

hot rod

J.C.A._3

WW

Bob has the goods....Believe him! JCA

Wayco Wayne_2

Thanks for the help

I knew but wasn't sure. Good to hear from folks who are. WW

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nick_7

In somwehat the same vein, I have an oil-fired boiler in basement venting to a masonry chimney that it turns out is shared with an open fireplace on the floor immediately above. anyone have an idea if there would there be adverse issues there in either proper venting of the boiler or in using the fireplace occasionally ? thanks

Bob Harper_2

If the oil boiler is truly sharing its flue with an open fireplace, both need to be shut down immediately!

You can NOT share wood with any other fuel-period! You can NOT share an open fireplace with anything else-period!
The oil appliance needs a dedicated flue suitable for the class of service. What you could do is reline the oil flue and block off the fireplace opening. Put flowers in the fireplace.
Left as is, this is a suicide machine.

Are you sure it shares its flue with the fireplace or are there two flues in one chimney: one oil flue and one fireplace flue? There is a huge difference.
Bob

nick_7

I am pretty sure it is the same flue, the same opening, for boiler and fireplace. It has been that way for a couple of years. Is the problem possible CO? I have a CO detector right next to the fireplace that has never registered a problem. thanks

Jamie Hall

Wood flues

get a lining of creosote. Fuel fired chimneys, particularly oil, get a lining of combustibles... either one can light off the other on the right conditions. If you're lucky, you have spectacular fire works out the top of the chimney. If you're not, you don't have a house any more.

As the guys say: do not mix wood with anything else. No more than one wood stove or fireplace on a flue. Ever.

Weezbo

Yes . Especially non existent MUA + :wood stove ,fire places....

some very not good things can happen .*~/:)

Tom_4

I was reading this post and I agree that you should not combine both oil and wood in the same flue. So why is it ok for companies to manufacture wood/oil combination boilers that use the same flue. I personally know many people with seperate wood fired and oil fired appliances in the same flue that have been that way for 20 to 30 years with no problems. As I said I do not agree with it as it could be a potential problem. Tom

Tom_4

I was reading this post and I agree that you should not combine both oil and wood in the same flue. So why is it ok for companies to manufacture wood/oil combination boilers that use the same flue. I personally know many people with seperate wood fired and oil fired appliances in the same flue that have been that way for 20 to 30 years with no problems. As I said I do not agree with it as it could be a potential problem. Tom

Tom_4

Sorry for all the posts. I keep getting error messages when trying to post a reply. Tom

Tom_4

Bob Gagnon plumbing and heating

check the top of the chimney

you could have 2 flues in the same chimney. Bob Gagnon

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Tom_4

Tom_4

Tom_4

radioconnection_3

same flue

It is a violation of code, a wood fire can create excessive draft over the oil appliance from what I understand. Some of the German dual-fuel boilers (Kunzel, and not approved in the States!) have a stack thermostat on the solid-fuel flue that is interlocked with the oil burner; when the solid fuel flue gases are over 140 F the oil burner is locked out.

Pete

Bob Harper_2

inspection

The point here is, you need a proper inspection. The very fact these issues have been raised is grounds for a Level II inspection, which includes visualization of the flue with a video or digital camera. If there are separate flues, you still need to know their condition. Most homes have one chimney like a double barreled shotgun: one barrel for the heater and one for the fireplace.

The hazards include CO, fire, odors, and damage to the chimney. If this is indeed the situation, it must be repaired immediately. Also, the home cannot be sold like this as it constitutes a "hidden defect". Should anyone get hurt, you could become liable.

Get a chimney inspector in there ASAP! Go to www.f-i-r-e-service.com to locate a qualified inspector near you.

HTH,
Bob