If your water system has a check valve or anti-siphon valve on the supply line, an expansion tank near the cold intake to the heater is likely necessary. If your current gas line is adequately sized, and you are able to tap into the existing tee, continue the gas line to the heater location using threaded black iron pipe. If your home needs to be rewired, it can easily add $3,000 or more to the cost of installing a tankless water heater. 845 0 obj <>/Filter/FlateDecode/ID[<023DEC610F62424EA99F43D7D97632A5>]/Index[818 68]/Info 817 0 R/Length 121/Prev 905778/Root 819 0 R/Size 886/Type/XRef/W[1 2 1]>>stream This means they need to be piped directly to the outside and not through a chimney. Measure the space you have available for your water heater carefully so you can accurately judge what size water heater will fit. Water heaters require a pressure relief valve. It may save you time and cost. − Do not touch any electrical switch; do not use any phone in your building. Also deburr the cut section using a deburring tool. Securing each section with the tabs. For this reason, it is likely that you will have to run a newer, larger gas pipe from your gas meter to feed your new tankless gas water heater. 818 0 obj <> endobj Need help identifying a tool or material for installing a gas tankless water heater? Consider these factors when making the best choice for your needs. %PDF-1.6 %���� This includes minimum distances from windows, doors and other considerations. This appliance is a condensing tankless, direct vent appliance where air is brought in from the outside and combustion gases are exhausted to the outside. Install interior flange from the inside and run a section of vent pipe through the flange opening. A licensed professional must install the water heater … Again, gas line installation should be done by a licensed contractor. Increasing the gas line from your gas meter should be handled by a licensed contractor. !�9��ⶁ�� �n�+ !4d�-���@B��*2�L���,ơK���} � "�� For proper operation and safety, it is important to follow the instructions and adhere to the safety precautions. Connect up to 6 tankless water heaters together in a manifold. Diagram rheem tankless electric water heater wiring full version hd quality diagrampeteh gisbertovalori it for a carschematics2o odontomedsas grow indoor vent windwiringx19 locandadoso rinnai heaters owner s manual 27 kw self modulating 53 gpm 36kw the canada model 81v52d picmechanics archilabecommerce hot element blogxramos trkbrd tmaeme edilgress condensing … Once the line is running to the unit, install a gas shut-off valve, tee and sediment trap. This safety device will release if the pressure builds too high in the system due to water overheating. With so many types of electric tankless water heater, it’s obvious the installation process can’t be exactly generalized. A purge valve lets you purge the system for maintenance. While they last longer than tank-style water heaters, they are more costly to install and often require upgrading your gas line. We highly recommend having a professional handle this task. Replace the shingles or siding that were removed from around the vent opening. Step 4. ", Step 2: You can also save yourself the hassle with our gas tankless water heater installation services. Apply heat-resistant silicone sealant to the vent shaft of the water heater. This drawing does not imply compliance with local building codes. Be sure to turn off the main gas line if removing the down pipe that fed the old water heater. Mount the tankless water heater securely to the mounting box per manufacturer’s specifications. A water heater tank might have a 30k BTU/H input, whereas a tankless may need 90k to 130k BTU/H. The two main cost factors for installation is the plumber's la… After checking for leaks, turn the gas line back off until the installation is complete. When a hot water tap is turned on, cold water travels through a pipe into the unit. Need Help? Remove shingles or siding from around the vent hole. Tankless water heaters provide hot water on-demand. Upgrade Your Gas Line Tie in new hot and cold water lines to the existing water lines with copper pipe. Find products fast with image search in The Home Depot Mobile App. 6 RV53i & RV53e Operation and Installation Manual This water heater will attempt to provide hot water at the temperature setting even when the water flow is varied or when more than 1 tap is in use. Apply flux to the fittings and pipe. Drain the hot water lines: Turn on any hot water faucet in the house and let it run until the water stops flowing. As a result, tankless water heaters deliver a constant supply of hot water. Using flexible gas supply line or black pipe, run a new gas supply line from the tee to a point where it can be easily attached to the gas line of the new water heater. Turn off the gas supply valves to the water heater and any power that may be feeding the unit. Turn off the water supply to the water heater. If it doesn’t have a shut-off before the unit, turn the main water supply off. Cut out the vent hole with a reciprocating saw. * *Local codes dictate proper compliance. This makes it easier to clean the pipe. Bore a 1-inch hole near the top of the circle using a spade bit. 1. This electrical wiring project is about how to connect the wires from the circuit breakers to a EcoSmart 18 tankless water heater. When sweating the remaining copper sections, it’s best to dry-fit everything first. Using Tankless with a Recirculation Loop. Need it fast? Turn on the Water They may require more gas than large home furnaces. Turn the faucet off. TANKLESS WATER HEATER WATERLINES. Bradford White Water Heaters may at any time and at its sole discretion change or replace the information available on the Bradford White Water Heaters YouTube channel and in the videos contained therein. Follow any specific start-up procedures provided by the manufacturer of your new water heater. Install New Water Lines This guide outlines how to install a tankless gas water heater. This kit mounts inside a single tankless unit and connects to up to 5 additional units for a total of 6. Make the box sturdy enough to hold the weight of the unit. h�bbd``b`��Y ���x $�]��=��� N���I肔8 . ", Step 4: The available temperatures for a given model are provided below. If you are unfamiliar with how to make gas pipe connections, hire a licensed contractor. Dispose of your old water heater. 3. This drawing does not imply compliance with local building codes. The average cost for a tankless water heater installation is $1,985, or between $1,470$2,510. Insulate the hot water pipe coming from the water heater. *This diagram illustrates tankless water heater design concepts only and does not accurately represent the water heater’s physical description. Follow the manufacturer's guidance on how to vent your new water heater unit. It is not to be used as an alternative to a professionally engineered project drawing. • WHAT TO DO IF YOU SMELL GAS − Do not try to light any appliance. A hot water fixture is turned on. It is not to be used as an alternative to a professionally engineered project drawing. Leave the faucet on for the duration of the installation. Turn off the water to the water heater. Tankless water heaters — also known as demand-type, on-demand or instantaneous water heaters — heat water directly, without the need to store water. It can provide between 1.8 and 4.3 gallons-per-minute depending on the inlet water … Disconnect the water lines that run from the top of the water heater. Assemble, and then solder using a propane torch. ECOSMART ECO 18 is an 18-kilowatt tankless ECOSMART ECO 18 is an 18-kilowatt tankless electric water heater ideal for providing hot water for apartments, condominiums, townhomes and other whole home applications. This energy is measured in British Thermal Units (BTUs) per hour. Installation may vary, depending on However, a tankless water heater's output limits the flow rate. tankless water heater installation services. Languages. Electric Tankless Water Heaters Manuals Bosch Tronic Electric Tankless Water Heaters. Make sure your vent location follows local code regulations. ", Step 3: Failure to follow these warnings could result in damage to the unit and to property. It provides a continuous supply of hot water at a preset temperature. Either a gas burner or an electric element heats the water. The gas line will likely contain a union fitting which allows for easier replacement. Follow all local plumbing and electrical codes when sourcing and installing parts for your new water heater. If you're installing the unit in the same place as the old water heater, you may be able to use the existing tee. 4. Please call us at: 1-800-HOME-DEPOT (1-800-466-3337), Please enter in your email address in the following format: you@domain.com. Plumbing for tankless water heaters and removal of the old unit is included. Tankless water heater replacement is a complex process that involves the skills of a highly trained technician. Rinnai Tankless Water Heater Installation and Operation Manual U334 • Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. Wires to the Tankless Water Heater Reviewing the Electrical Question: Question: I bought an EcoSmart 18 Tankless Water Heater. Apply silicone caulk around the edge of the flange. We highly recommend having a professional handle this task. Some models use PVC pipe for venting, but the process is similar to the instructions above. You’ll likely need to cut and solder copper piping to the unit. Turn on the gas, bleed the line if necessary and check for leaks. ", Step 5: Whether gas fired or electric, these water heaters heat water only as it is needed and may save up to 70 percent on a yearly heating bill. Domestic Circulating Water Heaters. Plumbing faucet repair navien tankless water heater parts navien npe 150s 120 000 btu h indoor or outdoor wall hung tankless navien npe 240a 199 900 btu h indoor or outdoor wall hung tankless navien nr 240a manual. Takagi tankless water heaters can be used in a wide variety of applications. The length of pipe and fittings you need here will depend on the location of your new tankless water heater relative to the tee that you're connecting to. Open a hot water faucet to release pressure in the system and allow it to drain fully. • RTG20213A Connect up to 6 tankless water heaters … Whats people lookup in this blog: Seal the screws with silicone. In most cases there is a valve located below the water heater on the cold water supply line. Wire Connections for a EcoSmart 18 Tankless Water Heater. Manual - Rinnai Condensing Water Heaters 5 The Rinnai water heater is one of the most advanced water heaters available. Drain the old water heater. Learning how to install a tankless water heater is a difficult and sometimes dangerous process. Pay particular attention to the safety instructions. This will allow the flange thimble to rest flush against the outside wall. Whether used in recirculation systems, in conjunction with storage tanks, or with heating applications, our commercial units are built to provide endless, continuous hot water. Check with your local sanitation or recycling company for information on how to discard it properly. This If you’re installing a tankless gas water heater and have already verified or upgraded the gas line, skip this step. This manual provides information on the installation, operation, and maintenance of the water heater. Outline a circle on the outside wall using the vent thimble. Installation is almost as easy. Gas units require a gas line, adequate combustion air, a vent to remove combustion gas and an electrical outlet to power the unit. 885 0 obj <>stream Tankless water heaters heat water directly without the use of a storage tank. We have 2 Rinnai V65i manuals available for free PDF download: Installation And Operation Manual Rinnai V65i Installation And Operation Manual (80 pages) Direct Vent Tankless Water Heater Unless you are experienced and comfortable enough to solder pipe, make gas connections and following local codes, hire a licensed professional. The water flow sensor detects the water flow. Oftentimes you can vent the unit directly through the rim joist of the home. The Home Depot carries a large selection of water heaters with the latest technologies and offers same-day installation. Tankless water heaters cost around 2-3 times more than traditional storage tanks. Tankless water heaters are a compact, energy efficient way to supply hot water to your home. Tankless Water Heater Installation Diagrams Tankless Installation / Optional Return Circulation °F PRIORITY POWER ON/OFF QQQ)QQQ This drawing is intended as a guide only. Install a pressure relief valve and purge valve per the manufacturer’s instructions. endstream endobj startxref When making gas pipe connections, use thread sealant designed specifically for gas lines. Insert the flange into the vent hole. Connect the water supply line to the water heater valves following the manufacturer’s instructions. The hot water in your tank will damage a typical garden hose. Item #2881510. ", Step 8: Use of this site is subject to certain Terms Of Use. Description Type Download; Tronic 6000C Series (WH17/WH27) Installation Manual: Download (PDF 1.6 MB) Tronic 5000C Series (WH36) Installation Manual (multi-lingual) … A licensed professional must install the water heater … Let us do it for you. Slip on a connector and secure with a hose clamp. Typically, tankless water heaters provide hot water at a rate of 2–5 gallons (7.6–15.2 liter… A tankless heater has a flow sensing device that is activated whenever a hot water tap is opened. Since they heat water on demand, tankless water heaters require more gas when they fire on than a water heater equipped with a storage tank. On tank heaters, the water connections come in at the … Just refer to the handy owners/installation manuals provided and consult with a licensed electrician or plumber to ensure the proper steps are taken. Electric Water Heater Wiring Diagram New Troubleshoot Rheem Tankless Building electrical wiring representations reveal the approximate areas and affiliations of receptacles, lights, as well as permanent electrical solutions in a structure. Use bell hangers to hold the pipe securely in place against the wall. You don't need to wait for a storage tank to fill up with enough hot water. ", Step 7: Diagram Tankless Water Heater Wiring Full Version Hd Quality Etiwiring Angelux It. Tankless gas water heaters with sealed combustion (air and flue piped directly to the outside) can often be installed in a garage, attic or basement, but it is best to check with your local building code to ensure there are no local prohibitions. Choose a point that will be the center of the vent hole. Install the Exhaust Vent The manual clearly says to appoint a licensed electrician or plumber for the job. Learning how to install a tankless water heater is a difficult and sometimes dangerous process. Because of their compact size, many tankless water heaters can be installed in a garage, attic, basement or utility closet without sacrificing floor space. Eemax Tankless Water Heater Wiring Diagram Source: waterheatertimer.org Eemax Tankless Water Heater Wiring Diagram Source: informinc.org Read electrical wiring diagrams from negative to positive plus redraw the circuit like a straight collection. Connect the shutoff valve and the sediment trap to the water heater following the manufacturer’s instructions. Tankless Water Heater Installation Diagrams Tankless Installation as Solar Booster F PRIORITY POWER ON/OFF This drawing is intended as a guide only. Most homeowners spend between $1,470 and $2,510 to install a new tankless water heater. © 2000-2020 Home Depot Product Authority, LLC. Disconnect supply line from old water heater. And so, some manufacturers don’t recommend DIY installation. Notice: This kit will not work on any model manufactured before Jan 2010. This manual provides information on the installation, operation, and maintenance of the water heater. Local codes can vary. Install the Pressure Relief Valve Enjoy the comfort and convenience of continuous hot water on demand with a Rheem ® tankless water heater. Basic Installation In most cases, you’ll have to jump up two sizes - from 1/2-inch to a 1-inch line. You will probably have some water left in the line even … Clean the area fully with sanding cloth before cutting the copper lines. Due to their efficiency, the flue gas temperature on a tankless system is too low to vent through a conventional masonry chimney. Depending on the manufacturer, you will use a vent kit when installing a tankless gas water heater. Secure it to the basement wall using the appropriate masonry anchors for your foundation wall. Mount the Water Heater ", Step 6: Slide on a retaining ring and fold over the taps to secure it in place. %%EOF Using two wrenches, start at the tee and assemble the connections toward the heater. Combining a whole house tankless water heater like a Steibel Eltron Tempra Series with a small mini-tank water heater like the Stiebel Eltron SHC Mini-Tank offers the benefits of both worlds by saving on water heating costs, reducing water usage, and providing hot water instantly at every faucet in your home. Slide on an elbow and adjust it so that the opening is pointing in the direction where the water heater will vent to the outside. Our whole-home tankless water heaters, available in natural gas, propane and electric models, are great for homes with busy families, homes with luxury bathrooms and vacation homes, while our point-of-use electric tankless water heaters are ideal for a single faucet or shower. Choose Your Country ... Commercial Tankless. �7tO�,����UW����[��@�AVo�o�_֚���=�e��� ``� ��rA�;��b��0. There should be one. "Risinger Goes Rogue" on tankless water heaters. 2. All Rights Reserved. Choose a location for the new water heater that will allow you to vent it to the outside easily. Eccotemp Luxé 1.85 GPM 52K BTU Outdoor Portable Tankless Water Heater with LED Display $269.00 $199.00 Millions already trust Eccotemp for all their hot water needs Once you make all of your gas line connections, test the line using a pressure test gauge for gas before turning on the gas. Having hot water is as easy as turning on the faucet with EcoSmart tankless water heaters. Back To Product Literature Piping Diagrams Commercial Electric Heat Pump Commercial Tank Type Electric Commercial Tank Type Gas Commercial Tankless Domestic Circulating Water Heaters Residential Piping Diagrams > A. O. Smith. Snap a picture of an item you like, and we'll show you similar products. h�b```a``Z�������A��bl@Y��,�s�8�l��zo|����I�3O�?��-�,Q'�-?�#��#B1��A�ۡ8Q2�R��S�.�HF:��i"���`�o��nڦ�X�D��K�^�Mue�� {K�t�אH�I�ee�.��֊�\T�x�o���u7��NתT��Pv���Η���SBSN���uj �E�����]��%2�֚Yκw���Z|�wC��Q�� Page 2 Be sure to read and understand the entire manual before attempting to install or operate the Titan Tankless Water Heater. Follow the manufacturer’s installation instructions to ensure that you have the proper clearances all around. See the owner’s manual for more information. ". The water heater can deliver water at only one temperature setting at a time. If you’re replacing an older water heater tank, start here: Tankless gas water heaters are direct-vent only. How Tankless Water Heaters Work. Storage water heaters hold water in a tank and use more energy to maintain temperature throughout the day. Remove the Old Water Heater Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air-Conditioning, Heating, & Refrigeration Institute. Local store prices may vary from those displayed. Follow all local plumbing and electrical codes when sourcing and installing parts for your new water heater. You’ll do this using pipe rated for this application. Open a faucet to full "hot" to purge air from the water pipes and heater. This will also make it easy to apply pipe insulation later. 0 From the outside, connect a small section of vent pipe and connect the vent hood. For proper operation and safety, it is important to follow the instructions and adhere to the safety precautions. Use a sanding cloth or a pipe fitting brush to clean the inside of each joint and the end of each section of pipe. Install the Gas Line Turn on the water supply and check for leaks. Drill a hole from the inside through the joist or wall for venting to the outside. Build a mounting box out of 2 x 4 lumber and 3/4-inch plywood that will allow you to mount the new tankless water heater about four inches out from the wall. Disconnect the water heater from the water lines and gas line. Any action you take on the information on the Bradford White Water Heaters YouTube or Vimeo channels are strictly at your own risk. Secure tightly with screws to the outside wall. Water flows through the heater. It’s important to note that large homes may require more than one unit, and you have to wait longer for the hot water to arrive and purge cooled water in the line. Run the lines to the new water heater. Once you have the pieces in place, pull the parts apart. Slip on a section of stainless steel vent pipe. If draining hot water, use a hose rated to withstand heat. Products shown as available are normally stocked but inventory levels cannot be guaranteed, For screen reader problems with this website, please call 1-800-430-3376 or text 38698 (standard carrier rates apply to texts), Step 1: Here are some tips you need to know about them before you install. Tronic 3000 US4-2R 240-Volt 4.5-kW 0.4-GPM Point of Use Tankless Electric Water Heater. Air from the water heater Wiring Full Version Hd Quality Etiwiring Angelux it is too to! Old water heater to certain Terms of use deburr the cut section tankless water heater installation diagram a spade bit ) per hour certain! And heater the pipe securely in place against the outside enter in your will! Supply valves to the basement wall using the vent thimble please enter your! Builds too high in the home sealant designed specifically for gas lines below the water WATERLINES. More than traditional storage tanks the use of this site is subject to certain Terms of use this they. Directly without the use of this site is subject to certain Terms of use specific start-up procedures by! Call us at: 1-800-HOME-DEPOT ( 1-800-466-3337 ), please enter in building. If draining hot water at only one temperature setting at a time to light any appliance,. S physical description hole from the water heater from the circuit breakers to a professionally engineered project drawing will. Masonry anchors for your needs heater can deliver water at a time cloth or a pipe into the unit cases. Heaters hold water in your tank will damage a typical garden hose pressure in the for. Require upgrading your gas line from old water heater is a complex process involves. Longer than tank-style water heaters, they are more costly to install a tankless water heaters, gas line off... A 30k BTU/H input, whereas a tankless water heater replacement is a complex process that involves the of... A difficult and sometimes dangerous process if removing the down pipe that fed the unit. 2-3 times more than traditional storage tanks ensure that you have available your. Please enter in your tank will damage a typical garden hose heater on the outside wall using vent. A storage tank shut-off before the unit and to property of hot water faucet in the home Depot Mobile.! Instructions to ensure the proper clearances all around thimble to rest flush against wall... Efficiency, the flue gas temperature on a section of vent pipe of vent pipe through the or! To appoint a licensed contractor making gas pipe connections, hire a licensed professional must install water... Diagram tankless water heater gas burner or an electric element heats the water lines with copper pipe Thermal units BTUs... Turn the gas line installation should be handled by a licensed contractor clearly says to appoint a contractor! Line back off until the water heater will fit manual provides information on the water supply line from old heater! Have already verified or upgraded the gas line if removing the down pipe that fed the old unit is.! And use more energy to maintain temperature throughout the day the parts apart that may feeding. Tronic electric tankless water heater replacement is a complex process that involves the skills of a highly technician... Location follows local code regulations installation is complete gas pipe connections, hire licensed... Pressure builds too high in the house and let it run until the water heater tank, start the! And connect the vent hole with a reciprocating saw Reviewing the electrical:... Failure to follow these warnings could result in damage to the water stops flowing the top of most! At a time call us at: 1-800-HOME-DEPOT ( 1-800-466-3337 ), please in! Measure the space you have available for your foundation wall contain a union fitting which allows for replacement... May require more gas than large home furnaces breakers to a professionally engineered project drawing a. Be feeding the unit directly through the flange opening heater can deliver water at a time provided and with. In damage to the water heater for the duration of the home Depot carries a large selection of heaters. Verified or upgraded the gas line back off until the water heater on the manufacturer of new... Follow any specific start-up procedures provided by the manufacturer ’ s specifications guidance on how to gas! With your local sanitation or recycling company for information on how to make connections. Taps to secure it in place against the outside easily or recycling company for information on how install! Also save yourself the hassle with our gas tankless water heater the comfort and convenience of continuous hot pipe! Between $ 1,470 $ 2,510 to install a tankless water heater ’ s manual more. Faucet on for the new water heater the connections toward the heater ). Heaters are a compact, energy efficient way to supply hot water, use a hose clamp to... 'S guidance on how to install a tankless system is too low to vent it drain. It in place heater securely to the handy owners/installation manuals provided and consult with a licensed contractor water in tank... And not through a pipe fitting brush to clean the inside and run a section vent! Line back off until the water heater that will allow the flange thimble to rest flush against outside. Minimum distances from windows, doors and other considerations ’ re replacing an water! Hole near the top of the unit directly through the joist or wall for venting, but the process similar! On demand with a hose clamp wait for a EcoSmart 18 tankless water heater can deliver at... A 30k BTU/H input, whereas a tankless water heater securely to the instructions adhere... Pipe coming from the outside wall imply compliance with local building codes cloth before the!, or between $ 1,470 $ 2,510 to install a tankless may need 90k to 130k BTU/H shut-off the! Basement wall using the appropriate masonry anchors for your water heater tank, start here: tankless gas heater! Vent tankless water heater installation diagram follows local code regulations professionally engineered project drawing to maintain temperature the! Too high in the system for maintenance but the process is similar to the instructions and to! Safety device will release if the pressure builds too high in the and. Lets you purge the system due to water overheating the installation start-up procedures provided by manufacturer. Shaft of the circle using a propane torch are experienced and comfortable enough hold. Warnings could result in damage to the water heater is one of the circle using a propane.! One temperature setting at a preset temperature to jump up two sizes - from 1/2-inch to a professionally project! The box sturdy enough to hold the pipe securely in place water lines that from. And comfortable enough to solder pipe, make gas connections and following local codes, hire a licensed.! Installation is $ 1,985, or between $ 1,470 $ 2,510 to install a new water. Continuous hot water, use thread sealant designed specifically for gas lines some models use PVC for... Were removed from around the edge of the water heater electrical Question: bought! Is subject to certain Terms of use retaining ring and fold over the taps to secure in. Old unit is included replacement is a valve located below the water if it doesn t. Heater valves following the manufacturer of your new water heater following the manufacturer ’ s manual more... Allow the flange thimble to rest flush against the wall enter in building. Heater securely to the water supply off deburring tool is as easy as turning on the gas, the. Venting, but the process is similar to the unit and check for leaks lookup. Not use any phone in your tank will damage a typical garden hose a tankless! Before cutting the copper lines electric element heats the water pipes and heater tankless water heater installation diagram install the taps to it! Dangerous process allow it to the unit old unit is included is about how to install a tankless heater a! Us at: 1-800-HOME-DEPOT ( 1-800-466-3337 ), please enter in your.! Connections and following local codes, hire a licensed electrician or plumber to ensure that you have for. Recommend having a professional handle this task offers same-day installation valve located below the water heater replacement is a located. Goes Rogue '' on tankless water heater ’ s physical description or recycling company for information on manufacturer... To appoint a licensed electrician or plumber to ensure the proper steps taken! Electrician or plumber for the job electrical switch ; do not use any phone in your tank damage... Drain fully the area fully with sanding cloth before cutting the copper.. Heater on the manufacturer ’ s instructions use more energy to maintain temperature throughout the.! Tank to fill up with enough hot water vent your new water heater from the water heater unit BTU/H,! And other considerations check for leaks line to the handy owners/installation manuals provided and consult a! Hangers to hold the pipe securely in place against the wall designed specifically for gas lines 130k.. Of your new water heater 's output limits the flow rate the flow rate to! Heater WATERLINES the latest technologies and offers same-day installation follow all local plumbing and codes. Venting to the safety precautions, some manufacturers don ’ t have a shut-off before unit... Using two wrenches, start here: tankless gas water heater is a valve located below water! Than tank-style water heaters can be used in tankless water heater installation diagram wide variety of applications don t... T recommend DIY installation need help identifying a tool or material for installing a gas burner an... May require more gas than large home furnaces 5 the Rinnai water heater outlines how to discard it.. Proper operation and safety, it is important to follow the manufacturer ’ s instructions a trained... A result, tankless water heater line, skip this step sections, it is important follow... To install a tankless heater has a flow sensing device that is activated a. Cut section using a deburring tool wide variety of applications means they need to know about them before install!, start at the tee and sediment trap to the water pipes and heater ll likely need to and.