Practical guides and expert advice to help you maintain, troubleshoot, and extend the life of your water heater.
Tankless water heater keeps shutting off mid-shower? Learn the 8 most common causes — from low flow rate to scale buildup — and how to fix each one yourself or with a pro.
A brand-by-brand guide to tankless water heater error codes for Rinnai, Navien, Noritz, and Rheem. Learn what each code means, why it triggers, and when to call a pro.
Learn the key signs of water heater sediment buildup, how serious they are, and what to do about it before it shortens your water heater's life.
Wondering if you need a water heater expansion tank? Learn what it does, how to tell if your home requires one, local code rules, sizing, and installation costs.
Find out exactly what voids a water heater warranty, from DIY installation to improper maintenance, and what you can do to protect your coverage.
An anode rod is the single most important part protecting your water heater from rust. Learn what it does, when to replace it, and how to extend your tank's life by years.
Tankless water heater installation costs $1,000–$5,000 depending on fuel type, unit size, and whether you're switching from a tank. Full cost breakdown, charts, and money-saving tips.
Learn what a heat pump water heater is, how it works, costs, savings, pros and cons, and whether it's the right choice for your home. Complete 2026 buyer's guide.
Learn how tankless water heaters work, including gas and electric models. Covers flow rates, sizing, costs, pros and cons, and whether tankless is right for your home.
Tank vs tankless water heater — which is right for your home? Compare upfront costs, energy efficiency, lifespan, maintenance, and more in this detailed guide.
Not sure whether to repair or replace your water heater? Use our age-based decision framework, cost comparison charts, and expert guidelines to make the right call.
Compare propane and natural gas water heaters side by side — costs, efficiency, performance, and which fuel type is best for your home and budget.
Find out what size water heater you need based on household size, bathrooms, and usage. Includes sizing charts for tank and tankless models.
No hot water? Learn the most common reasons your water heater stopped working and how to fix them — troubleshooting tips for gas and electric models.
Step-by-step guide to safely relighting your gas water heater's pilot light, with safety precautions, troubleshooting tips, and when to call a pro.
Why is your hot water brown, yellow, or rusty? Learn the most common causes — sediment buildup, corroded anode rods, aging tanks — and how to fix it.
Running out of hot water too quickly? Learn the top reasons your water heater can't keep up and how to fix each one, from sediment buildup to broken dip tubes.
Hearing popping, crackling, or rumbling noises from your water heater? Learn what causes these sounds, whether they're dangerous, and how to fix them.
Gas water heater won't light? Walk through the most common causes — from a dirty pilot tube to a bad gas valve — and learn how to fix each one safely.
Find the ideal water heater temperature setting for your home. Learn why 120°F is recommended, when to go higher, and how to adjust your thermostat safely.
Spot the warning signs your water heater is failing — rusty water, strange noises, leaks, and rising bills — so you can replace it before disaster strikes.
Learn how to prevent water heater rust with anode rod maintenance, tank flushing, and other proven strategies that extend your water heater's lifespan by years.
Find out how often to flush water heater tanks based on your water quality, plus step-by-step instructions and signs that your tank is overdue for a flush.
