Jeremy

First let me state that I am in no way suggesting that the trap in Phillip's photo should not be called...rules are rules after all. But, simply for the sake of discussion, what would be the actual safety hazard of that trap, if it was at an interior location as opposed to an unheated garage? I can see that a trap located where the standing water could be frozen would be a huge no-no, but I've never quite got my head around the issues involved in one like Phillip's. So, aside from the flex, can someone convince me why this particular trap poses a threat? Hi Richard, What comes to my mind is that it would be a place for critters to nest or if wet a place for scum to grow, either one causing a restriction. I'm sure you've seen ac condesate traps clog with scum. Then, when it dries it becomes like a plug. Just my thought...

Using any kind of flex on the TPR befor the air gap would not be good. A rigid tube is much more tamper proof, especially in areas exposed to children with curious hands. Flex would be subject to having a trap snatched in it without notice.

My dryer vent terminal would also have adequate clearance from the ground, to include any accumulation of snow. Especially today.

www.observertoday.com/page/content.deta ... l?nav=5093 Here is what was left of a home that exloded in Bemus Point this past summer. Natural gas.

I agree. I was curious as I have been called out by an AHJ on this over a little 2 1/2 ton unit that I had installed. I suppose it is a matter of what the inspector decides is readily accessible.

You'll find the definition for "Location, Dry" in article 100. Personally, I think that the MC cable is fine in this instance. The disconnects shouldn't be located behind the condenser units. - Jim Katen, Oregon Unless the units are located 36" or more away from the building.

Monday mornings can be tough! Was that before or after the coffee?

You checking to see if everyone is anal like me? They are. I learned it here. BTW it's compressor and condenser. Second only to masonary. Yeah, the condenser could make you "sor" when reaching for the disconnects on the "masonary" wall.

Did you call out the location of the condensor disconnects?

Best hunting this year!

I find it interesting that a brickmaking family would have such a house and not have any brick anywhere. ??

We don't really own our homes. We purchase the right to occupy the home so long as we pay the taxes. We lease our property from the government one year at a time. We make improvements, call it our own, and sometimes even refer to it as our castle. But, when it is all said and done, if we don't pay the annual lease, then we no longer have the right to occupy the property. And the more we improve the property the more the lease cost.....just a thought.....

The water heater was still working and no signs of leaking, but plenty of corrossion at the nipples and the draft hood was eroded away where one of the lines passed by it. It was one of those large hoods. The house was built about 72 and I think it is likely that this is the original water heater. It is old.

Does anyone want to take a shot at it? Image Insert: 210.31 KB

You suspect correctly, and they were certainly informed of that. It is my own curiosity I am trying to solve at this point. Mike, you right, that is not a reducer. The TPR itself has 3/4 inlet and 1/2 outlet and so as far as IRC goes, it meets the requirements. ...but I still like TPRs with 3/4 all the way through... Do you concur? I'm glad the heater is toast!

This water heater was raped. All tags, stickers identifying info and manufacturer are gone. So is the life of the heater.[:-bigeyes

I never heard of that either. I had this in my library. I'm not sure where I copied this from since I don't have a copy of the IRC 2006. IRC 2006 P2803.6.1 Requirements for discharge pipe. The discharge piping serving a pressure-relief valve, temperaturerelief valve or combination valve shall: 1. Not be directly connected to the drainage system. 2. Discharge through an air gap located in the same room as the water heater. 3. Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap. 4. Serve a single relief device and shall not connect to piping serving any other relief device or equipment. 5. Discharge to the floor, to an indirect waste receptor or to the outdoors. Where discharging to the outdoors in areas subject to freezing, discharge piping shall be first piped to an indirect waste receptor through an air gap located in a conditioned area. 6. Discharge in a manner that does not cause personal injury or structural damage. 7. Discharge to a termination point that is readily observable by the building occupants. 8. Not be trapped. 9. Be installed to flow by gravity. 10. Not terminate more than 6 inches (152 mm) above the floor or waste receptor. 11. Not have a threaded connection at the end of the piping. 12. Not have valves or tee fittings. 13. Be constructed of those materials listed in Section P2904.5 or materials tested, rated and approved for such use in accordance with ASME A112.4.1. I'd say the TPRV has been modified and ask if the manufacturer of the tank thought that this was OK. Hey, thanks Mike. I completely overlooked that. There is a change form the IRC 2003. The 2003 would have permitted this TPR by the way it reads. It says "The diameter of the discharge tube should not be less than the diameter of the relief valve outlet." Thanks for the extra eyes.[:-bigeyes

And are the weep holes plugged too??[?]

Must have been some ugly brick.

I saw those too when I googled. I can see how it could double as a system pressure relief by the lower press relief setting rather than the typical 150/160 setting. Or if you had a system that you wanted to run higher than 160 psi. This one has 3/4 inlet and 1/2 discharge. My mind keeps saying the discharge needs to be 3/4, but I can't find the back up for it. There is a ANSI reference in the IRC, but I don't have any ANSI literature. All the TPRs I've seen til this one have had 3/4 discharge and the manual relief lever that we never touch. But ??? Is it o.k.????

Image Insert: 103.56 KB TPR valve? 1/2" discharge tube? What is this?

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Maybe he was trying to compensate for reversing the hot and cold?[:-glasses

That looks like a really expensive roof job to me![][]

Advanced panelized conventional framing? How is the insulation protected until dry in?