furnace roof vent

[imported_noel]

Hello,
I will need to reroof my house soon, and I would like to do something about my ugly furnace and water heater roof vents. I would like to know if anyone knows of a company that makes a more decorative vent, or what the code requirements are for spacing vents. Or where I could find out the code for such.
Thanks

[Wgoodrich]

There are many rules pertaining to flues for furnaces and water heaters. Many homes have a flue liner for the furnace and water heater combined beside the masonary flue all looking like a rock or brick chimney yet inside that one brick or rock chimney is two or three flues.

Then there is the decorative metal flues where the flue is a triple liner metal flue contained in a wood chimney totally hidden in wood with the triple liner stack or flues allowing 6" clearance to wood or other decorative construction design.

Then you have reburners and 90 % effecient furnaces and water heaters that are vented by using the same flue exhaust as the plumbing vents on your drain system.

If you can tell me the efficeiency rating of your furnace and water heater and relative locations of each such as back to back next to the same flue, etc. Also tell me the type construction of the chemney you want then we will try and provide that certain copied section of the rules found in the International Dwelling Building Code.

Without knowing your desired look and your type equipment then we would overload the forum posting rules that apply to all types of exhaust systems.

Curious

Wg

[imported_noel]

Thanks Mr. Goodrich,
Man, you got a lot of irons on the fire. Keeping up on all these different codes, I don't know how you do it. I've been up in the attic doing wiring and trying not to knock over the vent stack from the water heater. This is when I got the idea to do something with these vents. I have to get the electrical done, but the roof is the next big project. I was just thinking ahead. I don't have a chimney, but I have thought about puting in a small gas or log free standing stove/fireplace. The metal chimney is something I wasn't aware of. I have to crawl under the house to wire the lights and switch up soon, and I have an underfloor furnace, which I'm not crazy about, but, I will get the furnace info then. I was thinking of a cupola like structure, a metal chimney might be the ticket.
Thanks

[Wgoodrich]

You can install one stack to serve you furnace and water heater using triple liner stack pipes with 6" clearance from combustable material. However you must size your stack large enough to meet code to serve multiple appliances.

You may buy a gas fire place that is ventless if you like. There are many rules that apply to this sizing etc.

Remember this stack must create draft.

For example a wood stove or wood fire place must have its chimney above the ridge of the home to ensure the proper draft in high winds etc.

You really need to do you homework to ensure you design your system as you want it but flexibility in design is almost unlimited.

Your cupalo [please forgive the spelling] idea is fine. Just remember that you will need a non combusible top on that vent allowing the vent to clear the roof to ensure venting.

Good Luck

Wg