rinnai tankless water heater nrh. All of the key components in the CU199 are designed for commercial requirements and manufactured by Rinnai, ensuring maximum quality and reliability from the industry leader in commercial tankless water heating solutions. rinnai tankless water heater nrh

 
All of the key components in the CU199 are designed for commercial requirements and manufactured by Rinnai, ensuring maximum quality and reliability from the industry leader in commercial tankless water heating solutionsrinnai tankless water heater nrh Warranty

A copy is provided with each tankless water heater in the rack system. 5 GPM, Natural Gas, Indoor Installation. Description & Specifications. Ideal for small to medium homes or remodels, compact, easy-to-install, reliable and perfect for indoor locations. com. All of the key components in the CU199 are designed for commercial requirements and manufactured by Rinnai, ensuring maximum quality and reliability from the industry leader in commercial tankless water heating solutions. 26 – 11. Founded in 1920, Rinnai has. 230V AC 50Hz 1ph. In fact, Rinnai Tankless Water Heaters use up to 40% less energy than a traditional tank water heater. Rinnai products provide peace of mind with warranties that surpass. Save 25% $3,920. +. For information on permitting requirements for othe r water heating system types and configurations, see section 150. Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5. V75i water heater pdf manual download. 03 GPM, which is plenty of capacity, even for a large household that requires hot water from multiple fixtures at once. Rinnai has an extensive network of professionals who are experienced in providing you with superior product performance. Rinnai Tankless Water Heaters use up to 40% less energy than a traditional tank water heater. Reliability They Can Count On. Hot exhaust and vent may cause serious burns. The manual covers the installation requirements, safety precautions, operation procedures, and troubleshooting tips for your specific model and application. Purchase and install a rocker switch or “doorbell” style buttons to activate the NRCR “on-demand” mode to prime the pump for use only when you want it. It delivers up to 7. Check Current Price. Remove any remaining water by blowing compressed air through the lines. 2 months and have already seen the benefits of a tankless system in terms of financial savings. 5 GPM 130,000 BTU Natural Gas Interior Tankless Water Heater Enjoy an endless supply of hot water with the RUCS65iN, our Super-High Efficiency condensing natural gas tankless water heater. All. 3M BTU capacity. Hot exhaust and vent may cause serious burns. Rinnai tankless water heaters are available with natural gas or propane fuel options and can be installed inside or outside. Rinnai products provide peace of mind with warranties that surpass the. 00 / each. 817-262-0989. All factories are ISO 9001 and/or ISO. Learn how to install and operate the Rinnai N Series tankless water heater, a high-efficiency and eco-friendly model that provides hot water on demand. Check for bleed over. Now, with Smart-Circ, Rinnai RSC model water heaters learn your water usage patterns to start circulating hot water on your schedule, anticipating your hot water needs for a shorter wait and saving energy during times when you don't. Overall, however, Navient tankless water heaters are slightly more efficient than Rinnai ones. Only the size of a small suitcase, is easy-to-install, reliable, and perfect for outdoor locations. Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. Please select a product category above to display all brochures, case studies, certifications, energy guides, manuals, spec sheets, tech sheets, and warranties for that category or model. With technology that operates only when hot water is needed, super-efficient heating coils, no pilot light and no storage tank to heat and reheat water, you save on energy and utility costs. With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. CU199eN is designed for exterior installation, natural gas fuel, is WiFi ready to. (330) 364-5571. Rinnai RU199IN - RU199IN 199,000 BTU Super High Efficiency Condensing Indoor Tankless Water Heater (Natural Gas)- Rebates: This product qualifies for a federal tax rebate of up to $600. This manual. For information on permitting requirements for othe r water heating system types and configurations, see section 150. Minimum water pressure is 50 psi. The U. Tankless 101. 68. Isolation Valve Included. 516 N. 67 USD. Only the size of a small suitcase, is easy-to-install, reliable, and perfect for indoor locations; Rinnai products provide peace of mind with. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless. Got my ac working when I needed it. Commercial. Rinnai offers a 12-year warranty on their tankless water heaters, while Rheem offers a 10-year warranty. Rinnai Tankless Water Heater Price. The water heat-er must be installed according to the exact instructions in this manual. RINNAI Super High Efficiency Plus 11 GPM 199,000 BTU Natural Gas Interior Tankless Water Heater. Rinnai’s super high-efficiency models offer sleek design, maximum output and an array of features ideal for the hot water demands of large homes. 199,900 Btuh, 9. RE160iN is the perfect combination of high efficiency, comfort and value in a natural gas non- condensing tankless water heater from Rinnai. On new installations ensure hot and cold water lines are not reversed. Plus, they save energy by heating water only when it is needed. RE160iN is the perfect combination of high efficiency, comfort and value in a natural gas non- condensing tankless water heater from Rinnai. • BURN HAZARD. Ideal for small to medium homes or remodels. Enjoy an endless supply of hot water with this high efficiency non-condensing propane fueled tankless water heater from Rinnai. Shop water heaters and a variety of plumbing products online at Lowes. Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe. Open a hot water tap: The Rinnai tankless water heater will automatically ignite the burner and start heating the water as it flows through the unit. Select a region. How a Rinnai Tankless Water Heater Works. Welcome to ultimate efficiency. That’s why more consumers and businesses choose Rinnai over any other tankless brand. RE140iN is the perfect combination of high efficiency, comfort and value in a natural gas non-condensing tankless water heater from Rinnai. Find My Store. Consumer financing and rebates are also often available. My point is that Rinnai doesn’t have hot water heaters and Rheem has a lot of them. S. More Options Available. us 5 Optimized Concentric Venting for Non-Condensing Models Rinnai Tankless Water Heaters were the first to use a unique concentric venting system – featuring an inner pipe for exhaust and an outer pipe forThe Rheem ECO160DVLP3-1 Indoor Liquid Propane Tankless Water Heater can provide up to 7. RE199iN is the perfect combination of high efficiency, comfort and value in a natural gas non-condensing tankless water heater from Rinnai. 95. RE180iN is the perfect combination of high efficiency, comfort and value in a natural gas non- condensing tankless water heater from Rinnai. Compare. Uniform Energy Factor (UEF): 0. 69 ( 15 %). Rheem 13kw Tankless Electric Water Heater RTEX-13. Only the size of a small suitcase, the propane fueled RSC160iP model is compact, easy-to-install and perfect for indoor locations. Wi-Fi Control Module for Rinnai Tankless Water Heaters. 46. _____ Download the SENSEI™ brochure to look inside the vertically integrated components of the new SENSEI with advanced recirculation technology for superior product performance. 5 GPM 130,000 BTU Natural Gas Interior Tankless Water Heater Enjoy an endless supply of hot water with the RUCS65iN, our Super-High Efficiency condensing natural gas tankless water heater from Rinnai. Rinnai Tankless Water Heater Installation and Operation Manual 3 If You Need Service ontact your local dealer/distributor or call Rinnai ustomer are at 1 -800-621-9419 Monday to Friday between 8 AM to 8 PM ET. com. 4. Add to List. Unlike many competitors, Rinnai makes the vast majority of our key components, allowing for consistent control of quality. 61 $1182. In fact, Rinnai Tankless Water Heaters use up to 40% less energy than a traditional tank water heater. Price: At $740, it’s moderately priced for the GPM and EF rating. Rinnai products provide peace of mind with warranties that surpass. The Control-r™ WiFi module quickly connects using your local Wi-Fi network and with the free Rinnai Central™ mobile app, you can set up your tankless water heater temperature, activate recirculation control and scheduling patterns, and get real-time status and maintenance alerts. Rinnai tankless can last twice as long as tanks, making them a better investment as well as increasing the value of your home. 37 Save $125. The 160,000 BTU Liquid Propane Tankless Water Heater is designed to supply continuous hot water for 1 - 2 bathrooms at the same time. Install with PROs in the Network. Only the size of a small suitcase, the RUCS75iN is compact, easy-to-install and perfect for indoor locations. Expert Installation Available $ 2244. Tankless Water Heaters Toggle "Tankless Water Heaters" menu. Martin from Ernie's plumbing came to my house and was able to effectively communicate my options or repairing/replacing my water heater. RE140eP is the perfect combination of high efficiency, comfort and value in a propane gas tankless water heater from Rinnai. 1-888-837-1451. We never run out. 4 GPM at a 35° temperature rise. Number of Tankless Water Heaters 2 Flow rate @ 70°F rise (gpm) 10. Welcome to ultimate efficiency. More Options Available. So Navien has the edge if you are installing it in 2023 as you might get a tax break when you do your taxes in 2024. (Training can be accessed on-line at. 95. Hot exhaust and vent may cause serious burns. Consumer financing and rebates are also often available. 81 UEF - Gas Tankless Water Heater - Concentric Vent Model: V65IN Ultra Low NOx Emissions (SCAQMD Rule 1146. Gas lines are typically ½” to ¾” and will work with a Rinnai system, but 1” is more fitting for a tankless water. Enjoy an endless supply of hot water with the SENSEI™ RU160iP Super High Efficiency Plus condensing tankless water heater from Rinnai. Early Black Friday Deals. In fact, Rinnai Tankless Water Heaters use up to 40% less energy than a traditional tank water heater. Homeowner Features. Enjoy an endless supply of hot water with the SENSEI™ RSC160eN Super High Efficiency Plus condensing tankless water heater from Rinnai. 1 GPM at 60° F Rise - 0. By. 78. Tankless Truths™ Condensing Rinnai’s super high-efficiency models offer sleek design, maximum output and an array of features ideal for the hot water demands of large homes. Rinnai Tankless Water Heaters Set aside the “Rinnai Tankless Water Heater Installation and Operation Manual” as you will need to reference clearances, venting options, and other information specific to the water heaters. Dover, Ohio 44622. #1 Home Improvement Retailer. Innovative technology : With condensing technology, Rinnai takes tankless water heating to the next level, delivering higher efficiency than ever before. Tankless Water Heaters Give Your Clients the Best of the Best Built to commercial-grade standards, Rinnai tankless water heaters are individually tested, backed by the. For an electric tankless water heater, we recommend the Rheem Performance RETEX-36. Super High Efficiency 6. (CAUTION: Ensure building occupants do not have access to hot water outlets during this procedure. , the first—of many non-condensing tankless water heaters—rolled off the line. Find wholesale prices on top Rinnai Propane Water Heaters. Super High Efficiency Plus 9 GPM Residential 160,000 BTU Natural Gas Interior Tankless Water Heater. It’s usually a flexible metal or corrugated tube running to the unit. Rinnai Tankless Water Heaters are only compatible with natural gas or liquid propane for maximum operating efficiency. EF rating: This tankless heater has an 81% EF rating – which isn’t the best amongst the group. Enjoy an endless supply of hot water with the SENSEI™ RU160iP Super High Efficiency Plus condensing tankless water heater from Rinnai. • Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. ADD TO CART. While tankless water heaters are the more environmentally friendly option, achieving 91 percent efficiency with non-condensing. Number of Showers: 1-2. Gas. A Rinnai PRO will help you choose the right model for your needs, provide. If I look at the tax breaks though for 2023 (not 2022 - current taxes you are doing now), you get a tax break for installing a tankless that is UEF 95% or higher. KM Series Manual 3 CAUTION URN HAZARD. Save on the Rinnai RU199iN from Build. More Options Available. 0. The Rinnai difference . With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. Super High Efficiency Plus 11 GPM Residential 199,000 BTU Natural Gas Interior Tankless Water Heater. This guide applies to storage gas water heaters, instantaneous or tankless gas water heaters, electric resistance water heaters, and electric heat pump water heaters. Expert Installation Available. REP160eN is the perfect combination of high efficiency, comfort and value in a natural gas non-condensing tankless water heater from Rinnai. Uniform Energy Factor (UEF): 0. He helps anyone with plumbing, including speaking the truth about tankless. You can even qualify for energy. 0 mobile app features timers, programmable schedules and. More Buying Choices $927. I do use the running water to rinse dishes for the dishwasher, fill the dog water dish, water. Rinnai. Rinnai M-Series boilers offer faster, easier installation with the compact and lightweight design and convenient mounting brackets. At approximately 6:15 am on a crisp Tuesday morning, Rinnai America Corporation made history in the United States, and all of North America. FREE delivery Thu, Nov 16 . 367 Reviews. 3 GPM. Plus, with premium technology, increased energy efficiency, an improved Home Energy Rating System (HERS) Index Score and. Rinnai fault code 02 – No burner operation during freeze protection mode. Manufacturer. Keep small chil-Rinnai11 GPM Interior Commercial 199,000 BTU Natural Gas Tankless Water Heater. Ideal for small to medium homes or remodels. Tankless gas water heaters can have several advantages over traditional tank-style gas water heaters. • Install the vent system per local and na-tional codes. 81 Results Brand: Rinnai. Boiler Venting & Accessories; Direct Vent Furnace Accessories. 74 each. The Rinnai RH180 Hybrid Tank-Tankless Water Heater is a unique combination blending the benefits of advanced technology and simple supply; it pairs an. Find wholesale prices on top Rinnai Tankless Water Heater. In compliance with California’s. Save $559. Actually the wireless control will be introduced the first of the year which will allow you to see what is going on with the unit from your phone or mobile device. 5/5 stars from 191 reviews. Installing venting through a wall or roof. Only the size of a small suitcase, is easy-to-install, reliable, and perfect for outdoor locations; Rinnai products provide peace of mind with. Rinnai’s durable and innovative system delivers a high-efficiency solution for heating your water. $186. compact, wall-mounted boiler can be easily installed as a retrofit to replace traditional, less efficient boilers. e. 06 USD. Insulate the heater and the pipes with foam. 0 mobile app features timers, programmable schedules and. Direct Vent Tankless Water Heater. 00 /mo† suggested payments with 12 months† financing Apply Now Unlimited Hot Water Less space for heating gives you more space for living If you have the do-it-yourself skills to install a water heater on your own, be sure to consider the cost of any additional tools and materials you may need for the job. Rinnai tankless water heaters are available with natural gas or propane fuel options and can be installed inside or outside. This user guide provides detailed instructions, diagrams, and troubleshooting tips for the S-Circ Logic recirculation pump. Free Delivery. 8 Gpm - Natural Gas. us 5 Optimized Concentric Venting for Non-Condensing Models Rinnai Tankless Water Heaters were the first to use a unique concentric venting system – featuring an inner pipe for exhaust and an outer pipe for All of the key components in the CU199 are designed for commercial requirements and manufactured by Rinnai, ensuring maximum quality and reliability from the industry leader in commercial tankless water heating solutions. SEE IT. x 15. Space Saving Design: They are wall hung and compact. Plus, with premium technology, increased energy efficiency, an improved Home Energy Rating System (HERS) Index Score and optimized LEED eligibility, our tankless solutions can increase your home's value. 68. They were fast and fair priced. Welcome to ultimate efficiency. As Rinnai is a top brand, most of their water heaters are higher priced than those of many. This item: Rheem 18kW 240V Tankless Electric Water Heater. Compare Rinnai models, prices, and specs to find the perfect Rinnai Tankless Hot Water for your application. 1. Rinnai RL75IP - RL75IP 180,000 BTU, Non-Condensing Indoor Tankless Water Heater (Propane)- <b>Overview</b><br> Rinnai Luxury Series Tankless Water Heaters take hot water performance higher, delivering the most impressive output of our non-condensing line. The unit will then run fine. With technology that operates only when hot water is needed, super-efficient heating coils, no pilot light and no storage tank to heat and reheat water, you save on energy and utility costs. 4/5 stars from 1364 reviews. It's ideal for big households or in cold climates. from the Sensei Collection. Rinnai; Uncategorized; No comments to show. Internet # 306655616. Again, you can use the arrow buttons to increase the temperature beyond 120 degrees. Ideal for small to medium homes or remodels. Rheem 18kw Tankless Electric Water Heater. Navien vs Rinnai tankless water heaters. Rheem RTEX-13 Tankless Electric Water Heater . This item, the RE199i, is for indoor installation and, therefore, requires venting. Recent reviews for North Richland Hills tankless water heater installation services. Free Delivery. Super High Efficiency Plus 11 GPM Residential 199,000 BTU Natural Gas Exterior Tankless Water Heater Let’s find your ideal Rinnai tankless water heater system. 92: 0. Only the size of a small suitcase, is easy-to-install, reliable, and perfect for outdoor locations; Rinnai products provide peace of mind with warranties that surpass. Rinnai tankless water heaters last up to twice as long, and save energy-heating water only when needed . Includes pre-installed pump with check valve and air purge valve. Rinnai products provide peace of mind with warranties that. Stiebel Eltron DHC Trend Point-of-Use Electric Tankless Water Heater. Only the size of a small suitcase, the RUCS65iN is compact, easy-to-install and perfect for indoor locations. Warranty (Residential) - Limited 12-year on heat exchanger, 5-year on parts, 1-year on labor (5-year optional on labor) These new Rinnai RUCS Condensing Tankless Water Heaters expand Rinnai’s Ultra Series condensing lineup to 6 models, in both indoor and outdoor versions, ranging from 130,000 to 199,000 BTU. Only the size of a small suitcase, is easy-to-install, reliable, and perfect for indoor locations. Country of origin: United. EneryStar Rated Performance: Rinnai has 23 EnergyStar rated gas tankless water heating models. 5 GPM Residential 180,000 BTU Interior Natural Gas Tankless Water Heater (10) Questions & Answers (37) +5 Hover Image to Zoom $1006. Rebates are also often available. With technology that operates only when hot water is needed, super-efficient heating coils, no pilot light and no storage tank to heat and reheat water, you save on energy. $38550. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting. RL75eP. Products; Tankless Water Heaters; Accessories; Featured Products; NEW NRCR w/ Recirc; EZ Series; Column 2 [Residential Image] Column 4 [Commercial Image] Column 3 [YouTube Video] About Us. Whether you are washing the dishes, washing your clothes, taking a shower or drawing a hot bath, Rinnai’s tankless water heater technology will supply endless hot water to your lifestyle demands-even if it demands you do them all at once. The tankless water heater has four 7,000-watt elements, for a total electrical load of 28,000 watts. • Install the vent system per local and na-tional codes. Concentric vent installation is beneficial. For an electric tankless water heater, we recommend the Rheem Performance RETEX-36. Keep away from the water heater. Only the size of a small suitcase, the RUCS75iP is compact, easy-to-install and perfect for indoor locations. Regardless of the model, the cost of repair will cost between $170-$450. The old style was used until 2009, and the new style is used today. Rated 2 out of 5 by ShortestLifeforaW1975 from New Rinnai Water Heater Only Lasted 3 Months I have. With Rinnai tankless water heaters, you never run out of hot water. — WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. Conditions apply and only on select models. Rheem 13kw Tankless Electric Water Heater RTEX-13. With tankless, you’ll enjoy continuous hot water and space savings. Keep away from the water heater. There are two different styles of Rinnai water heater serial numbers. Control and Convenience. Condensing. Welcome to ultimate efficiency. In fact, Rinnai Tankless Water Heaters use up to 40% less energy than a traditional tank water heater. RU199IN 199,000 BTU Super High Efficiency Condensing Indoor Tankless Water Heater (Natural Gas) SKU: RU199IN. In fact, Rinnai Tankless Water Heaters use up to 40% less energy than a traditional tank water heater. In fact, Rinnai Tankless Water Heaters use up to 40% less energy than a traditional tank water heater. Both Rinnai and Navien tankless water heaters are Energy Star compliant and efficient. Takagi T-KJr2-IN-LP Indoor Tankless. Only the size of a small suitcase, is easy-to-install, reliable, and perfect for outdoor locations; Rinnai products provide peace of mind with. Bosch. 95. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit. 4. 8 GPM. Shipping Info. Learn how to use the recirculation with on-demand accessories for your Rinnai water heater. RSC Model Series. Rebates starting at $600 available from energy providers for 66952. Every Rinnai tankless water heater is individually tested for quality before shipping. The Rinnai difference . 00:53. 50+ bought in past month. 69. Ideal for small to medium homes or remodels. No Gas Supply or Inadequate gas pressure. EST Monday through Friday and will be happy to assist you. Explore More on homedepot. RE180eN is the perfect combination of high efficiency, comfort and value in a natural gas non-condensing tankless water heater from Rinnai. 9. Water heater replacement, repair and installation North Richland Hills Texas including tankless water heaters installation and replacement. Rinnai's super high-efficiency plus condensing outdoor tankless water heater models offer the most advanced technology. Super High Efficiency Plus 9 GPM Residential 160,000 BTU Natural Gas Interior Tankless Water Heater. " > Rinnai Rebate Center</a></b> <br><br> <b>Note: Controller Cable accessory no longer comes. W. See reviews, photos, directions, phone numbers and more for Rinnai Tankless Water Heaters locations in North Richland Hills, TX. Model # RSC199iN SKU # 1001736504. • Proper installation is the responsibility of This guide applies to storage gas water heaters, instantaneous or tankless gas water heaters, electric resistance water heaters, and electric heat pump water heaters. The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. At approximately 6:15 am on a crisp Tuesday morning, Rinnai America Corporation made history in the United States, and all of North America. ‎Get customizable control and convenience for your Rinnai tankless water heater with Control-r™. onnecting gas lines, water lines, valves, and electricity. C199eN (REU-KBD3237WDC-N) C199iN (REU-KBD3237FFUDC-N). See Low Price. The U. Rheem 13kw Tankless Electric Water Heater RTEX-13. 95. Reliability They Can Count On. In this article, we’ll discuss how to determine the Rinnai water heater age from the serial number. In fact, Rinnai Tankless Water Heaters use up to 40% less energy than a traditional tank water heater. 5 in. Stiebel Eltron Tempra® Plus Whole House Electric Tankless Water Heaters. For a tankless unit to qualify, it must have a Uniform Energy Factor (UEF) of at least 0. Our office support teammembers are experts in maximizing rebate and incentives while making the process simple and easy. Ideal for small to medium homes or remodels. Two-story house with 4 bathrooms plus kitchen. Dover. RE160eN. ATLANTA (April 1, 2021) – Creating a healthier way of living® is Rinnai’s brand promise, and there’s no better way to uphold it then to. 75 (5 new offers) Rheem RTGH-68DVLP-3 Super High Efficiency Condensing Indoor Tankless Liquid Propane Water Heater, 6. 3). Turn on the gas, bleed the line if necessary and check for leaks. Whether you are washing the dishes, washing your clothes, taking a shower or drawing a hot bath, Rinnai’s tankless water heater technology will supply endless hot water to your lifestyle demands-even if it demands you do them all at once. E-mail us: plumbshieldplumbingllc@gmail. Accessories. Rinnai products provide peace of mind with warranties that. Imagine never running out of hot water even when your dishwasher is running, someone is doing laundry and you have multiple showers running at the same time. M. The Rinnai PRO Network. 3 bar. With technology that operates only when hot water is needed, super-efficient heating coils, no pilot light and no storage tank to heat and reheat water, you save on energy and utility costs. About Us. The Tankless Water Heater Code 10 is a diagnostic code that indicates a problem with the unit’s gas valve. They were able to get everything switched out and replaced within 24 hours. Only the size of a small suitcase, is easy-to-install, reliable, and perfect for outdoor locations. With technology that operates only when hot water is needed, super-efficient heating coils, no pilot light and no storage tank to heat and reheat water, you save on energy and utility costs. Ideal for small to medium homes or remodels. Some tankless models qualify for local rebates. V53e/RV53e. • DO NOT install this water heater above 10,200 ft (3,109 m). Only the size of a small suitcase, the RL75eP is compact, easy-to-install, reliable and perfect for outdoor locations. Rinnai's super high-efficiency plus condensing outdoor tankless water heater models offer the most advanced technology. Only the size of Welcome to ultimate efficiency. As with any tankless water heater from Rinnai, it is compact and powerful enough to meet the needs of a busy home as it consistently delivers hot water around the home. This manual covers both internal and external models, as well as natural and propane gas types. RE140iN is the perfect combination of high efficiency, comfort and value in a natural gas non-condensing tankless water heater from Rinnai. Company. Enjoy an endless supply of hot water with the RUCS75iN, our Super-High Efficiency condensing natural gas tankless water heater from Rinnail. • Do not touch any electrical switch; do not use any phone in your building.