--- title: "Trutankless GEN3 Electric Tankless | Scottsdale" description: "Trutankless GEN3 electric tankless water heater installed in Scottsdale & the Valley. 99% efficient, 7.5 GPM. Call (623) 323-4538." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Plumber", "@id": "https://dominickplumbing.com/#business", "name": "Dominick Plumbing", "legalName": "Dominick Plumbing LLC", "image": "https://dominickplumbing.com/apple-touch-icon.png", "logo": "https://dominickplumbing.com/apple-touch-icon.png", "telephone": "+1-623-323-4538", "email": "info@dominickplumbing.com", "url": "https://dominickplumbing.com", "priceRange": "$$", "foundingDate": "2021-01-01", "identifier": "Arizona ROC 350819", "hasCredential": "Arizona ROC #350819", "address": { "@type": "PostalAddress", "addressLocality": "Scottsdale", "addressRegion": "AZ", "addressCountry": "US" }, "geo": { "@type": "GeoCoordinates", "latitude": 33.4942, "longitude": -111.9261 }, "areaServed": [ { "@type": "City", "name": "Scottsdale, AZ" }, { "@type": "City", "name": "Paradise Valley, AZ" }, { "@type": "City", "name": "Phoenix, AZ" }, { "@type": "City", "name": "Fountain Hills, AZ" }, { "@type": "City", "name": "Cave Creek, AZ" }, { "@type": "City", "name": "Carefree, AZ" }, { "@type": "City", "name": "Tempe, AZ" }, { "@type": "City", "name": "Mesa, AZ" } ], "aggregateRating": { "@type": "AggregateRating", "ratingValue": "5.0", "reviewCount": 200, "bestRating": "5" } }, { "@context": "https://schema.org", "@type": "Product", "name": "Trutankless GEN3 Electric Tankless Water Heater", "brand": { "@type": "Brand", "name": "Trutankless" }, "category": "Electric Tankless Water Heater", "description": "The Trutankless GEN3 is the electric tankless water heater we install for Scottsdale, Cave Creek, and Carefree homes that don't have natural gas — or for homeowners going all-electric. 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One compact 28 lb wall-mounted unit replaces a 50-gallon tank, runs on standard 200A residential service at the R120 setting (the way ~85% of installs are configured), and reaches set temperature in about 15 seconds.", "image": "https://dominickplumbing.com/assets/product-trutankless-gen3-B-ut5Ak4.png", "url": "https://dominickplumbing.com/products/trutankless-electric-tankless-water-heaters" }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Can I install a Trutankless GEN3 on my existing electrical panel?", "acceptedAnswer": { "@type": "Answer", "text": "Most Scottsdale homes already have 200 A service, which supports the full R120 (120 A) setting — the way roughly 85% of Trutankless units are installed. Per NEC 220-82/83, GEN3 is classified as a non-continuous heating appliance and adds only ~40% of nameplate to your service load (about 48 A on R120), so a panel upgrade is rarely required. We always do a load calculation before quoting." } }, { "@type": "Question", "name": "Trutankless GEN3 vs. a Navien gas tankless — which should I get?", "acceptedAnswer": { "@type": "Answer", "text": "If your home has natural gas service, the Navien NPE-A2 gas tankless is usually cheaper to run in Arizona and delivers higher max GPM. Choose the Trutankless GEN3 when your home is all-electric, has no gas line at the heater location, or you're moving off gas entirely. It's also a great fit for casitas and ADUs where running new gas isn't practical." } }, { "@type": "Question", "name": "How much does a Trutankless GEN3 installation cost in Scottsdale?", "acceptedAnswer": { "@type": "Answer", "text": "Most Scottsdale Trutankless GEN3 installs run $3,800–$6,500 fully supplied and installed, depending on electrical work (new double-pole breakers, conduit run, possible subpanel), water-line rework, and whether we're adding a recirculation pump. Always a flat written quote before we start." } }, { "@type": "Question", "name": "Will it actually keep up with two showers running at once?", "acceptedAnswer": { "@type": "Answer", "text": "At the R120 setting on a 200 A panel, GEN3 delivers up to 7.5 GPM — enough for two simultaneous showers in most Scottsdale homes year-round (incoming water in the Valley is warm, which favors electric tankless). For very large homes or extreme demand we'll size a dual-unit install on a 400 A service." } }, { "@type": "Question", "name": "Does it work with a recirculation pump for instant hot water?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — unlike most electric tankless, GEN3 activates at just 0.25 GPM, which is inside the operating range of standard recirculation pumps. We recommend pairing it with a timer set to your household's hot-water schedule to preserve the efficiency advantage." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://dominickplumbing.com/" }, { "@type": "ListItem", "position": 2, "name": "Recommended Products", "item": "https://dominickplumbing.com/products" }, { "@type": "ListItem", "position": 3, "name": "Trutankless GEN3 Electric Tankless Water Heater", "item": "https://dominickplumbing.com/products/trutankless-electric-tankless-water-heaters" } ] } ] --- [![Dominick Plumbing](/assets/dominick-plumbing-logo-kbhHe4U8.png)](/) [Home](/) [Services](/services) - [Water Heater Install & Repair](/services/water-heaters) - [Tankless Water Heater Installation](/services/tankless-water-heater-installation-scottsdale) - [Water Softeners](/services/water-softeners) - [Reverse Osmosis Systems](/services/reverse-osmosis) - [Pipe & Slab Leak Repair](/services/pipe-leak-repair) - [Automatic Leak Detection & Shut-Off](/services/leak-detection-shutoff) - [Drain Cleaning & Hydrojetting](/services/drain-cleaning) - [Toilet Replacement](/services/toilet-replacement) - [Faucet Replacement](/services/faucet-replacement) - [General Plumbing Repair](/services/plumbing-repair) - [View all services →](/services) [Service Areas](/areas) - [Scottsdale](/areas/scottsdale) - [Paradise Valley](/areas/paradise-valley) - [Phoenix](/areas/phoenix) - [Fountain Hills](/areas/fountain-hills) - [Cave Creek](/areas/cave-creek) - [Carefree](/areas/carefree) - [Tempe](/areas/tempe) - [Mesa](/areas/mesa) - [All service areas →](/areas) More - Recommended Products - [TOTO Toilets](/products/toto-toilets) - [Navien Tankless Water Heaters](/products/navien-tankless-water-heaters) - [Trutankless Electric Tankless](/products/trutankless-electric-tankless-water-heaters) - [Encore Reveal Softener](/products/encore-reveal-water-softener) - [Encore IonX5 Conditioner](/products/encore-ionx5-water-conditioner) - [Waterdrop Reverse Osmosis](/products/waterdrop-reverse-osmosis) - [LeakSecure Leak Detection](/products/leaksecure-leak-detection) - [All recommended products →](/products) - Company - [Blog](/blog) - [About](/#trust) - [Contact](/contact) [(623) 323-4538 Call ](tel:6233234538) Recommended by Dominick Plumbing # Trutankless GEN3 Electric Tankless Water Heater All-electric, no-gas-required tankless — assembled in the USA and built for Arizona homes without natural gas service. [Get a Quote — (623) 323-4538](tel:6233234538) - Licensed & Insured · ROC #350819 - Pro install & warranty ![Trutankless Trutankless GEN3 Electric Tankless Water Heater installed by Dominick Plumbing](/assets/product-trutankless-gen3-B-ut5Ak4.png) Why we recommend it ## Trutankless GEN3 Electric Tankless Water Heater — our honest take The Trutankless GEN3 is the electric tankless water heater we install for Scottsdale, Cave Creek, and Carefree homes that don't have natural gas — or for homeowners going all-electric. One compact 28 lb wall-mounted unit replaces a 50-gallon tank, runs on standard 200A residential service at the R120 setting (the way ~85% of installs are configured), and reaches set temperature in about 15 seconds. - The right pick for all-electric Scottsdale/Cave Creek homes with no natural gas line - Tiny 28 lb wall-mounted footprint frees up garage or utility-closet space - Incoloy elements hold up to Arizona's 18–22 gpg hard water far better than copper alternatives - Runs on the 200A panel ~80% of Valley homes already have — no service upgrade in most cases - Pairs perfectly with the Encore Reveal softener to maximize element life Key features ## What you're getting - 99% energy factor — virtually no standby loss vs. a tank heater - Incoloy 800 heating elements — superior resistance to Scottsdale hard-water scale - Seamless passivated stainless steel heat exchanger manifold - Reaches set temperature in ~15 seconds (2× faster than previous Trutankless models) - Recirculation-pump compatible — activates at just 0.25 GPM - Solid-state relays, leak-detection shut-down, and temperature relief built in - Assembled in the USA with field-replaceable components Specs at a glance ## Trutankless Electric Tankless Water Heater specifications Type Whole-home electric tankless (3-element) Dimensions 25-1/4″ H × 17-1/8″ W × 5-1/2″ D · 28 lb Max outlet temp 140°F Flow range 0.3 GPM activation · up to 7.5 GPM max Voltage / wattage 220/240 VAC · 12.4–29.4 kW Power settings R60 / R80 / R100 / R120 (60–120 A configurable) Working pressure 80 PSI (tested to 150 PSI) Energy factor 0.99 (99% efficient) Warranty Standard factory warranty · +5 yr extension available FAQs ## Common questions ### Can I install a Trutankless GEN3 on my existing electrical panel? Most Scottsdale homes already have 200 A service, which supports the full R120 (120 A) setting — the way roughly 85% of Trutankless units are installed. Per NEC 220-82/83, GEN3 is classified as a non-continuous heating appliance and adds only ~40% of nameplate to your service load (about 48 A on R120), so a panel upgrade is rarely required. We always do a load calculation before quoting. ### Trutankless GEN3 vs. a Navien gas tankless — which should I get? If your home has natural gas service, the Navien NPE-A2 gas tankless is usually cheaper to run in Arizona and delivers higher max GPM. Choose the Trutankless GEN3 when your home is all-electric, has no gas line at the heater location, or you're moving off gas entirely. It's also a great fit for casitas and ADUs where running new gas isn't practical. ### How much does a Trutankless GEN3 installation cost in Scottsdale? Most Scottsdale Trutankless GEN3 installs run $3,800–$6,500 fully supplied and installed, depending on electrical work (new double-pole breakers, conduit run, possible subpanel), water-line rework, and whether we're adding a recirculation pump. Always a flat written quote before we start. ### Will it actually keep up with two showers running at once? At the R120 setting on a 200 A panel, GEN3 delivers up to 7.5 GPM — enough for two simultaneous showers in most Scottsdale homes year-round (incoming water in the Valley is warm, which favors electric tankless). For very large homes or extreme demand we'll size a dual-unit install on a 400 A service. ### Does it work with a recirculation pump for instant hot water? Yes — unlike most electric tankless, GEN3 activates at just 0.25 GPM, which is inside the operating range of standard recirculation pumps. We recommend pairing it with a timer set to your household's hot-water schedule to preserve the efficiency advantage. ## Related services - [Water Heater Install & Repair](/services/water-heaters) - [Water Softeners](/services/water-softeners) ![Dominick Plumbing](/assets/dominick-plumbing-logo-kbhHe4U8.png) Family-owned, licensed plumbers serving Scottsdale and the entire Valley. Clean water. Pure confidence. Licensed · Bonded · Insured ## Contact (NAP) - Dominick Plumbing - Scottsdale, AZ Arizona ROC #350819 - [(623) 323-4538](tel:6233234538) - [info@dominickplumbing.com](mailto:info@dominickplumbing.com) ## Service Areas - Scottsdale, AZ - Paradise Valley, AZ - Phoenix, AZ - Fountain Hills, AZ - Cave Creek, AZ - Carefree, AZ - Tempe, AZ - Mesa, AZ © 2026 Dominick Plumbing. All rights reserved. [Privacy & Cookies](/privacy)Scottsdale, AZ · (623) 323-4538 [(623) 323-4538](tel:6233234538) We use cookies to keep this site working and to understand how it's used. 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