Water Heaters
Common Types of Water Heaters
Tank Water Heaters
Tank water heaters store and keep a ready supply of hot water, with common capacities from 30 to 80 gallons. They’re a budget-friendly, straightforward replacement for most homes, with tall and short (lowboy) models to fit your space.
Tankless Water Heaters
Tankless water heaters heat water on demand, so you get a continuous supply without waiting for a tank to refill. Their compact, wall-mounted design saves space, and because they’re not keeping stored water hot, they can lower energy costs.
Point-of-Use Water Heaters
Point-of-use water heaters install right where you need hot water, like under a sink or near a remote bathroom, so you get hot water in seconds instead of waiting for it to travel from your main heater. Available as compact mini-tank and electric tankless models, they’re ideal for kitchens, bathrooms, garages, workshops and additions, and can help cut down on wasted water and energy.
Water Heater Parts & Accessories
Keep your water heater running or complete a new install with heating elements, thermostats, anode rods, temperature and pressure relief valves, thermocouples, expansion tanks, drain pans, supply lines and venting components.
Water Heater FAQs
What size water heater do I need?
As a general guide, a 30 to 40 gallon tank suits 1 to 2 people, 40 to 50 gallons suits 3 to 4 people, and 50 gallons or more suits larger households. For tankless models, size by flow rate (gallons per minute) based on how many fixtures you run at once.
How long does a water heater last?
Tank water heaters typically last 8 to 12 years, while tankless units can last 20 years or more with regular maintenance.
Should I choose gas or electric?
It mostly depends on what your home already has. Gas heats faster and is often cheaper to run, while electric is simpler to install and doesn’t need venting. Switching fuel types usually requires new gas, venting or electrical work.