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The hot water discharge pipe may

The hot water discharge pipe may also have a shutoff valve, often identified by a red handle. But the threads into which the new TP valve would have to screw were rusted beyond re-sealing with the new relief valve. 10 0 obj <> endobj if the problem is adequate total hot water quantity when hot water demands vary significantly over time then he'd want to use the cascade approach - hook up the heaters in series. Apologies for the delay. We've updated our Privacy Policy, which will go in to effect on September 1, 2022. I prefer piping water cylinders in series in a cascade design for more economical hot water production - that avoids the question entirely. The anode rod is bolted and fastened to the top of the tank and extends deep into the tank. In series hookups the hot water out of heater 1 is taken into the cold inlet of heater 2 and the hot water outlet of heater #2 then feeds the building. Watch out: your boyfriend, being a plumber, will doubtless convirm another little installation detail that we mention for other readers: the water heater shutoff valve should be only on the cold inlet side of the heater. The flue must be properly exhausted to the outdoors, and there are specific code requirements for the construction of the flue. By periodically draining the tank using the tank drain valve, these sediments are removed and problems are avoided. The pilot light and burner adjustment are key to proper and energy-efficient operation of the water heater. Just below is an example of what can go wrong. Our Comment Box is provided by Countable Web Productions countable.ca, Click to Show or Hide Citations & References, HOW TO IDENTIFY THE ORIGINAL USE OF WATER TANKS FOUND IN OLDER HOMES, TANK TYPES: EXPANSION, OIL, SEPTIC WATER, ALL, Heat Exchangers for Solar Water Heating Systems, Heat-Transfer Fluids for Solar Water Heating Systems, Solar Water Heating System Maintenance and Repair, Solar Water Heating System Freeze Protection, Scaling and Corrosion in Solar Water Heating Systems, Building Owner Water Heater Safety Notice, SCALE FORMATION in WATER HEATERS and METHODS of PREVENTION, SCALE FORMATION in WATER HEATERS - EXCERPTS, HOME INSPECTION EDUCATION COURSES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES, Typical time to remove an old water heater: 45 minutes to an hour, Time to position the new water heater in place: 30 minutes.

NZ) and that IF nothing went wrong the installation would be quick: simply unscrew the pipe plug, screw in the TP valve, install a discharge tube, and go. Continuing my demonstration of idiocy I drove 40 minutes back to my shop, tossed my plumbing tools in the truck, stopped off at Davies Hardware (106 Main St., Poughkeepsie, NY) to pick up a new TP valve and some new teflon tape. I know some fellows would have been in their truck long before all of this, but really? The valve top and valve stem shot into the air and whacked into the basement ceiling, and water geyser ed into the air in a hot fountain. To better serve you, our valued customers, we are performing a system maintenance that will temporarily interrupt our phone and voicemail systems on Tuesday, August 10, from approximately 8:00 PM-10:00 PM ET. Ref your diagram third down this page HOT WATER QUANTITY IMPROVEMENT - D.R. We could just shut off the well pump and drain pressure from the system. One Residential/LD Atmospheric Vent Model with Integrated Mixing Device, One Residential/LD Atmospheric Vent Model with Return Circulation & Integrated Mixing Device, One Residential/LD Atmospheric Vent Model with Storage Tank, One Residential/LD Power Direct Vent Model, Two Residential/LD Atmospheric Vent Models, Two Residential/LD Atmospheric Vent Model with Return Circulation, Two Residential/LD Atmospheric Vent Models with Integrated Mixing Device, Two Residential/LD Atmospheric Vent Models with Return Circulation & Integrated Mixing Device, Two Residential/LD Atmospheric Vent Model with Storage Tank, Three Residential/LD Atmospheric Vent Models, Three Residential/LD Atmospheric Vent Model with Return Circulation, One Residential/ LD Electric with Return Circulation through Drain Valve, One Residential/LD Electric Models with Storage Tank, One Residential/LD Electric Wall Hung Model, One Residential/LD Electric Utility Model, Two Residential/LD Electric Models with Return Circulation, Two Residential/LD Electric Models with Storage Tank, Three Residential/LD Electric Models with Return Circulation. In contrast, an in-parallel piping means that if you could balance the flow, you're providing an equally-large reservoir of hot water even if, as demand varies, you didn't need it. He wanted me to look up Parallel plumbing on two water heaters for opening a new bar. All rights reserved. Drive time back from the job is usually not billed by the plumber so we'll eschew that final 40 minute trip back to Poughkeepsie. At this point any sane plumber would have insisted on replacing the whole water heater. endstream endobj startxref On newer water heaters, this component is known as a flame sensor. A gas water heater works by a law of physics knowns as convectionwhich defines how heat rises. Please wait as we prepare your PDF.

Other methods for shutting off building water supply in an emergency are. I found this to be a challenge to see if this was something very ingenious and would like to make sure and understand and share that maybe you are getting more hot water this way or it's a mistake is labeling. Tank-type water heaters are available in both gas and electric versions, but the gas models are more prevalent thanks to their lower initial cost and lower operating cost. Only an idiot would jump into three feet of water and try flipping an electrical fuse box switch. And there was the well pit: with three feet of water covering most of the equipment and a fuse box mounted on the wall to power the well pump. There are just too many variables in any plumbing installation to give a number for plumbing work when we have not a shred of information about the job. There are very different reasons for hooking up multiple water heaters in series versus in parallel as I outline just below. You didn't say what energy source these heaters use - I'm guessing they are electrical, but the parallel / series hookup question and answer remains the same for all energy sources. Replacing an anode rod is a fairly easy DIY project. A battle, no a war, between me and the damned heater. Instead I grabbed a bigger wrench. In glass-lined tanks, there willbe a metal rod in the tank, usually magnesium or aluminum, called a sacrificial anode. Interesting. The thermocouple or flame sensor is a key safety feature, since it senses the presence of the pilot flame and prevents gas from flowing to the burner if there is no pilot flame to ignite it. 10 minutes to remove the worthless water heater tank drain valve and install a new one. Whiletankless water heaters that heat water as it is needed are becoming more popular, the tank-type is far less expensive and still preferred by most homeowners. If you're not familiar with that approach see the article on this page beginning at WATER HEATER PIPING. This approach is economical and allows each tenant to be charged for their individual water heater use (if metering is installed). she wailed. If hot water coming from faucets becomes smelly or discolored, it may be an indication that the anode rod has been consumed. Again, at this new point any sane plumber would have insisted on replacing the whole water heater. This was a home built in the 1960's. Now what happens if we hook up two or more water heaters in series? Probably less than an hour of time for the plumber. The hot water tank can build up sediments in the bottom of the tank over time, leading to a number of problems. water exchanger steam heat piping diagram sterile document untitled Shutting off the cold water supply effectively shuts off the water flow entirely, since it is the pressure from the cold water entering the tank that keeps the hot water flowing outward.

In many installations, the cold water supply shutoff valve will be identified by a blue handle. The owner had dozens of cardboard boxes of stuff stored on the basement floor. Fitted to the top of the tank, there are two water pipesa cold water supply pipe and a hot water discharge pipe. Water heater piping installation & connections: Here we describe the plumbing connections and piping options for hot water system hook-ups. The gas burner that heats the wateris controlled by a gas regulator assemblymounted on the side of the water heater, which includes a thermostat that measures the temperature of the water inside the tank and turns the burner on and off as needed to maintain the set temperature of the water. One of his specialties is repairing old systems dating back to the 1920s, including galvanized water pipes, knob-and-tube wiring, and more. Is this a mistake? For your boyfriend's case, hooking up hot water supply for a bar, to decide how to hook up his two water heaters depends on what problem he's solving. SPEW! The gas line feeds into a gas regulatorthat includesa thermostat for the water heater. Bradford White is American Strong. 15 minutes of pre-job discussion, (I won't count time to discover the problem nor time for other unrelated tasks). "I don't have my plumbing tools, no parts, nor anything I need," I continued. Do You Need a Water Heater Expansion Tank?

To test the valve, lift up on the handle slightly; tank water should discharge out of the overflow pipe. An exhaustflue runs through the center of the tank to allow exhaust gases to flow up through the tank and out of the house via a chimney or vent pipe. Total time to this point: 95 minutes before the work could begin. OK?". A water heater full of sediments will not heat efficiently, and you may hear bubbling, gurgling sounds caused by the moisture-saturated sediments boiling. hbbd```b``*~ q+t 2drO>_A"`3h `s30` = For details. Reader Question: 9/11/14

I ran 100 yards back to the house to grab a broom. Or is there an advantage to taking water from bottom of tank. You might as well as me how long will it take me to drive to Christchurch. Depending on how the water heaters are located and how their use is intended, I'd consider a revision to pipe them in series rather than in parallel. Attach a garden hose to the drain valve and place the open end of the hose in a floor drain or utility sink. to the Poughkeepsie shelter. No worries! But I would not install a shutoff between the two water heaters - doing so creates the same unafe condition. are the same between the two heaters. What does the plumber say about shutoff valve locations on a multi-heater installation in series? the handle blew off of the water heater drain.

I found two sites with the same hookup Cold water to Cold Water and Hot to Hot on cold water. At a home inspection I noticed that a water heater (cylinder) had no pressure/temperature relief valve installed: instead there was a pipe plug screwed into the opening where the TP valve belonged.

- C.B. John Cranor [Website: /www.house-whisperer.com ] is an ASHI member and a home inspector (The House Whisperer) is located in Glen Allen, VA 23060. During this brief period, please contact us via email: techsupport@bradfordwhite.com warranty@bradfordwhite.com. Note: see how the cold and hot are hooked up. By now I had run 300 yards, risked electrocution, got the well pump OFF, AND there was 2" of water all over the basement floor. These services will not be available during this timeframe. Replacing a thermocouple or flame sensor is a fairly easy job. I made a big mistake. These are inexpensive and easy to install, but it is important to avoid blocking the burner access panel and the flue hat at the top of the tank. Included ar typical time estimates to install a water heater. Plumbing war story: geyser wars: what can go wrong when installing a part on a water cylinder (water heater). Find local Bradford White Contractors. %%EOF The gas flames should about 1/2 inch in height and should have blue tips (yellow flames indicate dirty burner jets or an improper air mixture). See WELL PITS if you don't know what these holes are. There are construction guides with standard "job times" that one could consult but those offer time ranges that do not allow for problems that might be encountered. When the tank is empty, shut the tank drain valve, and open the cold water supply valve to refill the tank. The owner can instead make a contribution to a local charity for what a plumber would have charged for a service call. Adrenalin gave me strength to toss aside the huge, heavy well pit cover. Richard Epstein is a licensed master plumber with over 40 years experience in residential and commercial plumbing. Parallel water heater hookups (Which I think you are describing) basically are feeding cold water in parallel to multiple water heaters (i.e. I'll give an example in a moment. Cold water supply pipe:Cold water is provided to the tank by acold water supply linecontrolled by a shutoff valve. You will likely see discoloration in the draining water as the sediments flush out. In addition to the longdip tube that supplies cold water to the tank, and the shorter hot water discharge pipe through which hot water flows into the plumbing system, there areother key components inside the tank. simultaneously) and the outpout from each of the heaters (the hot out) feeds either different building areas, apartments, or users (case Parallel 1) , or feeds a manifold that then joins the output from all of the heaters to feed a single hot water line feeding a large building (case Parallel 2). Get quotes. Or see WATER HEATER PIPING FAQs - questions & answers posted originally at the end of this page. Parallel 2, which I've heard-of but never seen and which I think has less application, is in my OPINON an inefficient variation on the cascade water heater approach designed to give a high hot water output quantity to a single destination. Hooking up a water heater backwards gives bad results. I think my customer is in for some bad news His pipes are totally NOT symmetrical and as I thought that is probably his problem with only one of the two identical cylinders supplying a barn conversion! ". Thank you. Another key safety feature of a hot water heateris the temperature andpressure-relief(T & P) valve and discharge pipe. If two water heater cylinders are next to one another the solution is easier as we can make the input supply pipe lengths equal to each of them from a common tee point, and we can join their outlet pipes at a second outlet tee common point again making sure that lengths, elbows, etc. heat loop pump water closed cooling source pumps commercial capacity winter gpm We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. We'll call it $100. Read reviews. The home owner, an elderly woman, began to cry. Is it a fairly easy job? Watch out: keep in mind that there is good reason that the incoming cold water must be connected to the "COLD" marked inlet on the water heater, as the manuacturer specifies - a dip tube is delivering cold water to the heater tank bottom. "I'd have to return later with the TP valve, pipe dope, tools, and so on" I explained. The dense cold water at the bottom of the tank is heated by agas burner located below the sealed tank.

Then turn the gas control valve to the ON position and check to make sure the gas burner ignites. The standard "tank-type" water heater is found in most homes, and with just a little maintenance, it can provide years of trouble-free operation.

One just connects a garden hose to the water heater tank drain at the tank bottom, then carries the other end outside or to a suitable drain location. 8/5/2013, Illustration provided Courtesy Carson Dunlop Associates, used with permission, I'm not sure I have a clear picture of the question but it seems to me that, 1. This valvealsosupplies gas through a small secondary tube to the pilot light, which serves to light the burner when the regulator valve and thermostat call for it. The home buyer looked at me with a funny glint in his eye, then he suggested that it would be fine with him if I fixed the water heater TP valve problem. We sincerely apologize for any inconvenience. I just touched it on one edge. More suggestions are at HOT WATER PRESSURE IMPROVEMENT, Shown at left are two of five water pipe connections found at an antique water storage tank fonund in the attic of a California home. hb``b``2` 1W0230|2ht#Sr06)/` I That is, both water heaters will always have to run when any hot water is used from the pair of them. These steps took about another 95 minutes, Total plumbing job time to this point: 115+ 105 = 220 minutes, I walked (exhausted) back to the well pit, use a broom to return power to the lethal flooded well pit pump, Document and warn the owner of the shock hazards at the well pit (buyer already knew this). 22 0 obj <>/Filter/FlateDecode/ID[<04C934A1124F6A38FE200B10809132EB><58C6C1E8F6EF9946BC135AFB86828E09>]/Index[10 16]/Info 9 0 R/Length 78/Prev 159583/Root 11 0 R/Size 26/Type/XRef/W[1 3 1]>>stream Open the tank drain valve and allow all water to drain out of the water heater tank. This assembly includes the pilot light and gas burner itself. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. Hot water discharge pipe:This is the business end of the hot water heaterthe pipe that supplieshot water to all your sinks, tubs, showers, and appliances needing hot water. endstream endobj 11 0 obj <> endobj 12 0 obj <> endobj 13 0 obj <>stream Parallel 1 is what we would expect to see in a small apartment building or multifamily house - essentially each tenant has their own water heater - common cold water in but individual hot water out is fed to each tenant or apartment or building area. That tank was ultimately identified and described in detail, The following piping arrangements are discussed in more detail. A variation of the cascade approach is to install a simple water stoarge tank indoors ahead of the heater; water in the storage tank absorbs heat from the ambient indoor environment before feeding the water heater - reducing the heater's workload. %PDF-1.6 % If for some reason he has no room for a larger capacity single water heater but needs a large quantity of hot water always available then a parallel hookup (Parallel hookup case 1 above) might be usable. Total plumbing job time to this point: 115 minutes, 40 minutes back to Davies Hardware to buy a 3/4" pipe thread chase/tapping tool to clean up the rusted threads and a bottle of LeakLok sealant to be applied (with care so as not to subvert the new TP valve). Just touched it, I swear.

I was losing. Contact Mr. Cranor at 804-873-8534 or by Email: Thanks to Scott C. LeMarr, for sharing his file of keys to decode, www.energysavers.gov/your_home/water_heating/index.cfm/mytopic=12850 is the base U.S. DOE website for these article, Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the. My boyfriend is a long time plumber in a small town here in Northern Calif.

I decided to hook up a garden hose to enable draining pressure off of the building plumbing system and out of the water heater (cylinder) itself, sufficient to lower water level below the TP valve opening on the side of the water cylinder tank. - D.R. The natural gas or propane that heats the wateris supplied by a pipe having its own gas shutoff valve attached to a gas pipe made from steel black pipe or copper tubing. I already had an appropriate threaded adapter and section of 3/4" copper piping to use for the discharge tube. Continue readingat PLUMBING SYSTEM INSPECT DIAGNOSE REPAIR - home, or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. His home repair articles for The Spruce span more than 10 years. Thanks for your time in this matter, my boyfriend hooked up the units as always but, my question wants to see if this is more efficient in a bar setting needing more hot water. As Carson Dunlop Associates' illustration (left) shows, one way to improve hot quantity in a building is by hooking up more than one water heater, in parallel or in series. No worries, I could just shut off the well pump so that we'd only drain 40 gallons of water onto the basement floor and onto the boxes of stuff stored there. Happily SNAFU 3a did not occur: the fuse switch did indeed shut down the pump without falling into the water. HW-+&60c80lK!~9d`}ok;-O_o0~Vj=zo?z[Gof>w=axtLGm[M#(G78i--m50|?38:n}O`qb^a. 0 We explain the piping for a basic water heater installation compared with options for connecting hot water heaters in parallel, in series, or ganged. I just touched the handle. Flushing a tank isn't particularly hard. This debate whined on for a time.

It operates like the radiator cap on your car. Just look at the water heater installed in our photo at left: the location along will add considerable time to any work that has to be done on this unit. A sort of insanity set in. From the gas regulator, gas flows to the gas burner assembly, which you can access through a metal panel on the bottom of the water heater's outer casing. This was going to be a catastrophe. A simple approach is to install an automatic, adjustable flow balancing valve on the heater outlets, but Watch Out: never install a valve that can close off all hot water outlet or you may be asking for an exploding water cylinder. "But I'm a lonely frail widow, living waaaay out here in the country, allll alone, I'll never get a plumber to come out here" she continued. In explaining why plumbing job time & cost estimates are just that: estimates, let's use a real-world example of a simple plumbing task: the installation of a temperature & pressure relief valve (safety valve or TP valve) on an older water heater that is itself already in place. While at Davies' I also picked up a replacement water heater tank drain valve, 8 minutes to re-chase the tapping in the water heater tank and clean the opening, 5 minutes to cut and solder a thread adapter and fit the discharge tube. Shut off the cold water supply to the water heater. Good question, D.R.

I ran 100 yards up to the well pit, kicked away snow, banged on the cover to dislodge it from being frozen in place. I'm sorry but that question is a bit tricky to even try to answer. At the job site I looked at the water heater again. The hot out of heater 1 enters the cold inlet to heater 2. Some models do not have a separate anode rod but instead have a hot water outlet pipe that is coated with magnesium or aluminum to serve the function of an anode. In most designs, a spiral metal baffle inside the flue captures heat from the exhaust gases and transmits it to the surrounding tank. On a two hot water cylinders install, how do you ensure equal flow from each cylinder? We have no relationship with advertisers, products, or services discussed at this website. The in-series allows you to use one of the heaters to boost temperature when the hot water in the other has begun to run out - reducing hot water cost while still providing more hot water quantity. Thisinner tank is made of high-quality steel with a vitreous glass or plastic layer bonded to the inside surface to prevent rusting. Does this work both at same time or just one at a time. In thecenter of the tank is a hollow exhaust fluethrough which exhaust gases from the burner flow up to an exhaust vent. He specializes in estimating as well as design and engineering for plumbing systems, and he works for one of New York's largest union plumbing construction companies. I ran 100 yards back to the well pit and used the broom handle to push down the fuse switch. heater water gas tank heaters light parts internachi lifespan tanks plumbing components relight course anatomy pilot energy construction heating inspect

Watch for leaks (there were no more leaks), Total plumbing job time to this point: 220 + 45 = 265 minutes, Mop up basement, turn on fans, move boxes, These steps took another 2 hours and 15 minutes (135 minutes), Total plumbing job time to this point: 265 + 135 = 400 minutes - nearly 7 hours to "just install a simple TP valve". Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly. This valve is located on top of the tank and often is threaded directly into the tank top itself. Christchurch in what country? WHAM! Bob Formisano is a licensed architect and builder with nearly 40 years of experience building new homes and restoring older homes. 2022, Bradford White Corporation, USA. With the new parts on the water heater it was time to turn water pressure back on, refill the heater, turn it on, and check for leaks. If it doesn't operate properly, the T & P valve should be replaced. The hot water discharge pipe is much shorter than the dip tube, since its goal is to funnel off the hottest water, which is found at the very top of the tank. You can also supplementthe insulation by adding a fiberglass insulation tank jacket to the outside of the hot water heater. This approach is often used for both heating and hot water heating in large buildings and is sometimes called a cascade approach; with proper heater control settings it allows very economical heater operation - we just run one smaller heater when demand is low, but we can run two or more heaters when demand is greater; In a cascade arrangement the heaters downstream from the first one act as boosters and turn on only as needed. Easy Steps for Cleaning the Burners on Your Gas Stove. I'm not even sure what you mean by "hot water feeder" nor what is involved: piping, lengths, number of connections, accessability, time to drain existing plumbing, re-fill, valves, mounts etc. It was surely the case that these would be all the parts I'd need. As the name suggests, a tank-type water heater heats cold water and stores the hot water until it is needed by various plumbing fixtures and appliances in the home. There are a couple of approaches depending on how you set the thermostats but bascially the second of the in-series heaters doesn't turn on until cold water enters it from the now-used-up first water cylinder.

Its purpose is to draw rust-causing ions in the water to itself, thus preventing the metal tank from corroding. Products made by Bradford White are manufactured in the United States using the finest raw materials and components from around the world to deliver the highest quality and value to our customers. All were either missing completely or were frozen solid. First off the well and pump and pressure tank were not in nor near the home but were about 100 yards up in the woods in a well pit.

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The hot water discharge pipe may