How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
WATER HEATERS
Monday, May 28, 2018
Here’s links to a collection of our blog posts about WATER HEATERS:
• What is a "tabletop" water heater?
• Are water heaters required to be raised off the floor?
• Can a Temperature and Pressure Relief (TPR or T&P) valve be mounted to discharge horizontally?
• Where are gas water heaters not allowed to be installed?
• Is a double heating element water heater better than a single element water heater?
• Is the minimum size water heater inlet pipe 1/2" or 3/4" according to the building code?
• Can you use a light switch for a water heater disconnect?
• How can I tell if a water heater is HUD-approved for mobile/manufactured homes?
• Can you wire a 240-volt water heater with 120 volts?
• Is it alright to have a shut-off valve on both the hot and cold water pipes at a water heater?
• What is the minimum clearance to doors and windows for an outdoor tankless gas water heater?
• What is required clearance for access and working space in front of an electric water heater?
• Why is the water heater older than the house?
• Does a water heater need a shut-off valve?
• Why should a tankless water heater have an isolator/service valve kit installed?
• When was a gas water heater first required to be elevated 18 inches above a garage floor?
• What is the purpose of a thermostatic mixing valve above a water heater?
• Does a tankless gas water heater still work with no electricity during a power outage?
• Why do water heaters have a sacrificial anode?
• What is the difference between a manufactured/mobile home water heater and a regular water heater?
• Does a tankless water heater require a pressure relief valve?
• When is a water heater drain pan required?
• Why is there water in my water heater drain pan?
• What does it mean when a water heater Temperature/Pressure Relief (TPR) discharge pipe is "trapped"?
• Can I leave a gas water heater in place when remodeling a garage into a family room or bedroom?
• Where do I find the water heater in a mobile home?
• Does a tankless water heater in an attic require a drain pan?
• Does an electric water heater require a disconnect?
• Is a catch pan and drain piping required for a replacement water heater?
• What is the difference between a single element and dual element electric water heater?
• What is an FVIR water heater?
• What is a heat pump water heater?
• What's that powdery crust on the pipe connections at the water heater?
• What are the most common installation mistakes with water heater replacement?
• Why is my water heater making strange (rumbling, gurgling, knocking or banging) noises?
• What can I do to make my water heater last longer?
• How does a hydronic heating system work?
• What is the difference between a regular water heater and a direct vent water heater?
• What is the difference berween a regular water heater and a power vent water heater?
• What is backdrafting at a gas water heater?
• How do I determine if a water heater is gas or electric?
• What does it mean when a gas appliance (water heater, furnace, or range) has been "red tagged"?
• Why does the water have a rotten-egg smell in some empty houses?
• What's the valve with the flip-up handle on the water heater for?
• Why is an older water heater an insurance problem?
• What is the average lifespan of a water heater?
• What is the First Hour Rating (FHR) of a water heater?
• Can you connect CPVC pipe directly to a gas water heater?
• What are the special code requirements for installation of a gas water heater in a garage?
• Can a water heater Temperature/Pressure Relief (TPR or T&P) valve to mounted to discharge upward?
• What is a "heat loop" at a water heater?
• Can I replace a single element water heater with a double element one?
• Do I need a pan under a water heater in the garage?
• What is the red switch for in my mobile home?
• Can you use PVC pipe for the water heater temperature pressure relief (TPR) discharge pipe?
• How much clearance is required around a gas water heater?
• Is it safe to sleep in a room with a gas water heater?
• Can you install a gas water heater in a bedroom?
• Can you install a gas water heater in a bathroom?
• Can you install a gas water heater in a closet?
• How can I tell if a water heater is 240-volt or 120-volt?
• What is the small pipe on the side of the house that is dripping water?
• What is the best location for a water heater in a house?
• What does a home inspector check at a water heater?
• Can a water heater and air conditioner use the same drain?
• Can a Type B vent connector be run horizontally?
• Can you use PEX as discharge pipe at water heater temperature and pressure relief (TPR) valve?
• Why is a leaning water heater a safety problem?
• Can PEX pipe be connected to a water heater?
• When were gas water heaters first required to be FVIR (Flammable Vapor Ignition Resistant)?
• What is the little tank on top of the water heater for?
• Can a water heater thermal expansion tank be installed sideways/horizontally?
• Do I need a permit to replace my water heater?
• Is a water softener bad for my water heater?
• Are water heater expansion tanks required by code?
• Is a thermal expansion tank required for tankless water heaters?
• Can a water heater be cord and plug connected?
• Can a tank water heater be installed outdoors?
• How do I move a water heater?
• Is water heater corrosion a sign it’s time for replacement?
• What does ECO INSTALLED mean on a water heater data sticker?
• Can I install water heater in the crawl space by code?
• Is a drain pan required for a small (2.5 to 6 gallon) water heater?
• What are the signs it's time to replace my water heater?
• When were water heater thermal expansion tanks first required by code?
• Can you use an electrical cord and plug for an exterior tankless gas water heater?
• What causes the powdery crust on CPVC pipe connections at the water heater?
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