gas water heater vent terminatin

[Zibby Swieca]

Can anyone tell me if this is proper vent termination? (gas water heater)
Thanks

[Billy Stephens]

Zibby,

Looking at IRC 2003 G2427.8 Venting system termination location.

The minimum clearance from any opening into a building is 6 inches and the distance goes up with the Btu rating of the appliance.

[Scott Patterson]

Can anyone tell me if this is proper vent termination? (gas water heater)
Thanks

Depends on what type of water heater it is. If it is a direct vent, this is most likely the approved cap as it takes in fresh air as well as disposing of the combustion air. How far is the cap from the crawl space? It looks like it could be OK.

[Zibby Swieca]

edited

[Billy Stephens]

Depends on what type of water heater it is. If it is a direct vent, this is most likely the approved cap as it takes in fresh air as well as disposing of the combustion air. How far is the cap from the crawl space? It looks like it could be OK.

Scott,
IRC 2003 G 2427.8(503.8) Section 3

Direct Vent 10,000 Btu at least 6 inches from any air opening into a building

over 10,000 Btu but not over 50,000 Btu shall be installed with a 9 inch vent
termination clearance

over 50,000 Btu shall ave at least a 12 inch vent termination clearance.

Zibby,

T&P discharge line is improper.

[Zibby Swieca]

edited

[Zibby Swieca]

Thanks,
It is 40.000 Btu

[Billy Stephens]

Thanks.
What if house is wired with aluminum wiring.

What does TREC say about Aluminum Wiring?


Thanks,
It is 40.000 Btu


Mechanical draft venting system at 4 feet below,4 feet horizontally from, or 1 foot above any door,operable, window or gravity air inlet into any building......

[Gunnar Alquist]

Zibby,

Depends on what part of the wiring is aluminum. If the conductors are the larger size for electric appliances or other panels, then AL is fine. If it is for the branch circuits, then there is a potential problem and corrections should be designed and implemented by a licensed electrical contractor.

[Zibby Swieca]

Yes it is for the branch circuits.

[Michael Thomas]

Check the manufacturer's instructions - I've been surprised more than once at the the small separation some require from potential means of air entry to a structure.

[Billy Stephens]

Check the manufacturer's instructions - I've been surprised more than once at the the small separation some require from potential means of air entry to a structure.


Good Advice,

Most Water Heater Manufactures do not address Vent Termination. :)

[Scott Patterson]

House is wired with aluminium wiring. Acceptance of this condition rest solely with client. Houses wired with aluminium wiring are known by insurance industry to have higher risk of electrical fires and insurance rates are usually higher for houses with aluminium wiring.

Do you agre or disacree with above statment.
How do you comment on house with aluminium wiring.
Thanks.

Personally I don't care for the Alum Wire verbiage. I like telling my client this "This home has single strand aluminium branch circuit wiring. Although many homes have this type of wire and show no signs of problems it is considered to be a fire hazard and it should be replaced. Some repair options are available but they have been proven to have problems as well. Have a qualified electrician provide a quote for replacement of all aluminium branch circuits."

As for the water heater:

That is not a direct vent.
The vent termination is wrong.
The TPR line is wrong.

[Zibby Swieca]

edited

[Billy Stephens]

Can anyone tell me if this is proper vent termination? (gas water heater)
Thanks


Those are combustion air openings for hot water
heater.

Zibby,

?????

Isn't one a combustion gas vent ? (round) one an inlet for combustion air ? (rectangular)

[Jerry Peck]

Scott is correct:


As for the water heater:

That is not a direct vent.
The vent termination is wrong.
The TPR line is wrong.

That is a natural draft water heater, thus that vent and termination are completely and totally wrong.