" thats a lot of money for a few hours of work" article listed in the nacho gallery spoke a lot about the more difficult conversations to have with clients concerning money and the cost of services. comparing it to that of picaso’s work
Aside from code requirements, it is hard to understand why a plumber who is installing a water heater would choose not to include a ten-dollar pan under the fixture. Sooner or later, nearly every water heater ends up leaking. A drain pan, known in the trade as a smitty pan, is very cheap insurance when you consider the costs of repairing and replacing damaged building materials, not to mention the potential consequences of mold infection. Instead of debating what is or isnt required by code, plumbers should recommend smitty pans to all of their water heater customers and should agree with home inspectors who recommend drain pans.
An expansion tank is a metal tank connected to a buildings water heating appliance designed to accommodate fluctuations in the volume of a buildings hot water supply system. These fluctuations occur because water expands in volume as it gets hot and loses volume as it cools. Expanding water volume in a closed system can create dangerously high water pressure. As water is forced into the tank by expansion, it compresses air contained inside of a rubber bladder. Air is used as a cushion because it exerts less force on its container than water, which cannot be compressed.
In this particular installation, the electric water heater discharge tube does not terminate six to 12 inches from the floor. The discharge tube instead proceeds through the sheet rock wall, and presumably through three floors (inspection was of a 3rd floor condo)- Discharge tube terminates approx. 24" above ext. grade (see photos). ( Local multifamily building code permits this discharge pipe routing.)
Examined the plumbing gallery photo of gas water heater “sediment trap” and noted that there is no gas shut off upstream of the sediment trap. The Water Heater Course points out that the gas shut off should be so located so that a plumber can remove the sediment trap for cleaning without shut off main gas shut off to the home.
Attached is a photo of an installed hot water heater. During the time of the photo i noticed that there a couple of things missing on the installation of this tank. The drain pan is acutally not plumbed to drain anywhere at the moment and the pipe is not plugged so if any water was to leak into the pan it would go all over the floor. The Relief valve also does not have any piping to direct any of the water to a safer place.
In sticking with my photo showing the missing TPR Valve discharge pipe i thought i would discuss the article on TPR valves. These valves are installed to release built up pressure in the tank that is higher than the safe levels of pressure. If this valve were to fail it could cause the tank to expand almost 1600 times the volume it has. It would have enough energy to propel through multiple floors in a home.
The photo shows an electric water heater not properly wired which creates a really serious hazard for anybody approaching the appliance either for maintenance or operation purpose, it could be even worst if the water heater is close to a wet area like a mop sink.
The water heater expansion tanks are a very smaller than the actual hot water tank because thy are designed just to aliviate the over pressure generated due to the fluctuation of the temperature, and the heat transfer inside of the hot water tank.
what an amazing post admin thanks for this.
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This water heater had many problems and obviously had not been installed by a licensed plumber. A couple of the callouts were, missing a drain pan that was piped to the exterior, on unit that was located in a pantry. If water heater failed there were possible flooding issues and damage to surrounding areas. Also the TPR was missing a discharge pipe that runs to the exterior of the home. I let them know that if this TPR were to release, that scalding water and steam could harm anyone near it, as well as damage to the surrounding area.
An issue that I have come across on many water heaters is a off center vent connector or vent line completely disconnected. This was usually found after a new roof had been installed, where the roofers while removing and replacing shingles, shift and move the vent line and never bother to check after completion. One home had both water heaters in the attic disconnected, so both vented directly into the attic. Another was on an interior water heater in a closet just outside the master bedroom, fortunately with supply air from the attic, but again all that exhaust was going into the attic. This is a good example of why there should be at least 3 screws on every vent connection.
This is an image of a Whirlpool hot water heater. This is an electric heater and there are two heating elements instead of a burner area. The upper element is located just below the Whirlpool sticker and the lower element is located just above the drain valve at the bottom of the tank. During the inspection I will turn off the power to the tank and remove these covers to examine the electrical connections.
The image shows the gas piping to a hot water heater. As the gas line is run to the gas valve an extension is placed in-line with a T fitting and drops down a few inches and then is capped off. This extension, or sediment trap, will collect dirt, debris or moisture that is in the line so it will not clog the gas valve.
This is a vent above a water heater in a fourplex. There is a forced air gas furnace in the foundation crawl space area below which has a vent that is coming into the water heater vent at a T. This is not meant to be a T but should come into the water heater vent as a Y so that the flow is not obstructed.
Sediment Trap at Gas-Fired Water Heater Tank
This is an image of a standard gas fired water heater. It shows a sediment trap which should be on any water heater or other equipment that operates with gas.
What it does is takes particles which may otherwise block the flow of gas and lets them drop into the sediment trap which can be cleaned out from time to time.
As a not this image does not show a pan or drain line going to an exterior of a building but it is not known where it is located.
the water heater does have extreme signs of corrosion, that indicates that leaks for extended periods of time, affecting the cold and hot water pipes, also getting inside the burning chamber, a certified plumber must inspect repair or replace the water heater
A gas fired water heater should have enough air for the combustion purpose,If the volume of space in which water heater is located, is less than 50 cubic feet of space per 1,000 Btu per hour of aggregate input of the appliance, then it is a confined space.
Here is a water heater in an attic I inspected in Baton Rouge. The TPV was terminated where I could not see. This was reported because the client was renovating after the 2016 flood last year. Did not want her to have another problem after reno.
On gas fired water heaters it is recommended to have gas valve installed before the drip leg. This is because in the event of cleaning drip tube, you could stay local instead of turning gas off to the rest of the house.