How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
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Frquently Asked Questions (FAQ) about Tankless Gas Water Heaters
Saturday, November 13, 2021
What’s to know about tankless gas water heaters? For one, unlike tank water heaters, they need a maintenance flush every couple of years; and two, they don’t work during a power failure. Othewise there’s plenty to like:
• Why should a tankless water heater have an isolator/service valve kit installed?
• Does a tankless gas water heater still work with no electricity during a power outage?
• Does a tankless water heater require a pressure relief valve?
• Does a tankless water heater in an attic require a drain pan?
• What is the minimum clearance to doors and windows for an outdoor tankless gas water heater?
• Is a thermal expansion tank required for tankless water heaters?
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