Power VTX Gas Condensing water heater 500, 750, 1000 MBH 225 gallon tank Overview Technical Documents Power VTX® is a high efficiency condensing storage water heater featuring a submerged combustion chamber, enhanced fire tubes and a storage tank fabricated entirely from AquaPLEX duplex stainless steel for increased life expectancy and reliability. Seamless pulse width modulation reduces cycling and improves efficiency up to 99% during low load conditions. Features and Benefits 96% thermal efficiency Modulating burner provides part load efficiency up to 99% Natural or LP gas (combina􏰀on gas train switchable between natural and LP gas is available as an op􏰀on) Premix stainless steel surface burner Low NOx < 20 ppm, SCAQMD compliant Gas trains are ANSI/CSA compliant and include a second safety shutoff valve and gas pressure regulator Category IV venting (positive pressure) up to 200 eq. feet through 6-inch diameter material Direct inlet combustion air venting AquaPLEX Corrosion Protection Highly durable AquaPLEX® engineered duplex stainless steel storage tank and heat exchanger Corrosion-resistant in potable water at any temperature Highly resistant to chloride stress corrosion cracking No lining required Non-ferrous, removable tank connections No anode rods required or used Warranty 15-year AquaPLEX tank and heat exchanger corrosion warranty (8 years full, 7 years prorated) One-year parts warranty Certifications Meets ASHRAE 90.1 Qualifies for LEED certification ETL-listed as low-lead, NSF 372 compliant FM compliant and certified at <20ppm NOx ASME, section IV, part HLW stamped and National Board registered ETL listed to ANSI Z21.10.3/CSA 4.3 CSD-1 (GE-GAP) controls optional Technical Documents Technical Documents Installation and Piping Drawings Installation, Operation and Maintenance Manuals Literature, Performance and Dimensions Product and Component Drawings Specifications Standard and Optional Equipment Startup Forms Warranty Find a Sales Representative Customer Support Share this Product Customer Support Find a Sales Representative Find a Service Contractor Products Documents and Tools Sales Representative Portal CA Supply Chain Disclosure © 2021 PVI, A Watts Brand. All rights reserved. Accessibility Privacy Policy Terms of Use Sitemap