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Tankless Water Heater Propane, 4.21GPM 16L Indoor,Instant Hot Propane Gas Water Heater,Constant Propane Water Heater with Fahrenheit Digital Display,Multi-Protection (Black) - Amazon.com
Amazon.com: Viessmann 7179114 Sensor #5 (DHW, Immersion NTC) for Vitodens B1HA/B1KA/B2HA Series : Tools & Home Improvement
Amazon.com: Viessmann 7828718 Ignitor & Ionization Electrode for Vitodens B1HA/B1KA/WB1B/WB1Bc Series : Tools & Home Improvement