How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
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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