Should I have 2 water heaters?

If you have fixtures or appliances located some distance apart, it may be advisable to install two or more point-of-use on-demand water heaters to avoid unnecessary energy losses and prolonged delivery times.

Can you run 2 water heaters in series?

Adding another heater in series will allow you to use both heaters with doubled capacity. Usually a cheaper alternative than buying one water heater twice the size of the original.

Why do I have 2 hot water heaters?

In series, the water comes in to the first water heater, then passes through the second hot water heater, and finally goes to your fixtures. If you turn off the second water heater, then the water in the second one cools down between uses. This results in very long warmup times.

How does 2 hot water heaters work?

With a dual-element water heater, there are two heat elements – one on the top and one toward the bottom of the tank. Each element has its own thermostat, and only one element runs at a time. The top element turns on first to start the warming process.

How many water heaters do I need?

For 1 to 2 people: 30-40 gallons. For 2 to 3 people: 40-50 gallons. For 3 to 4 people: 50-60 gallons. For 5+ people: 60-80 gallons.

How many water heaters do I need for my home?

Typically, residential water heater sizes range from 40 to 100 gallon tanks. Usually, most homeowners find that either a 40 or 50 gallon hot water tank is the best fit for their needs.



Water Heater Size Based On Number Of People In A Household.

Family Size Water Heater Capacity
1-2 23-36
2-3 36-46
3-4 46-56
5-6 56-80

Is it better to have two water heaters or one big one?

Greater efficiency can be achieved by installing multiple, smaller tankless water heaters throughout the home. Hot water is then drawn from nearby tankless appliances instead of being lead through the home’s entire plumbing system from basement to point-of-use.

Should water heaters be in series or parallel?

According to AO Smith you should always pipe in parallel. Their reasoning is that if piped in series the first heater does the bulk of the work and will wear out earlier. When piping parallel though it’s important to run equal length and fittings to each to insure each gets equal flow.

Can I add a second water heater?

Provided that the existing water heater is relatively new and functions properly, we often recommend adding a second heater and coupling the two to double the supply capacity. This solution averages $700, a substantial savings over the cost of a stand-alone installation.

How long does it take for a 50 gallon gas water heater to heat up?

Gas Hot Water Heater Recovery



Water coming into a 50-gallon tank at 40 degrees takes just 53 1/2 minutes to reach 120 degrees. For 60-degree water entering the tank, calculate about 40 minutes needed for the water to reach the 120-degree temperature. For 70-degree water, it would take 33 minutes.

How do you hook up two hot water heaters together?

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How does a non simultaneous water heater work?

If you use all the hot water in the tank, the upper thermostat will demand heat and withdraw power from the bottom of the tank. Non-simultaneous means that only one of the heating elements may heat at a time. NEVER turn on power to the water heater unless it is full of water and has been purged from a hot water faucet.

Can you run a water heater with one element?

So, can you run a water heater with only one element? Yes, a water heater can still run if the bottom element quits. However, the water heater won’t run efficiently and likely won’t produce enough hot water to satisfy your family’s needs running on just the top element.

Are upper and lower water heater elements the same?

Upper and lower heating elements are identical, and the temperature is regulated by the upper and lower thermostat and high limit device. Electric water heater elements can be different in size, but the most common is 12″ (300 mm).

What is non-simultaneous wiring?

Non-simultaneous or non-continuous means that only one heating element and related thermostat operates at a time either lower or upper. In other words, the upper and lower thermostats and heating elements are wired such a way where both are dependent on each other.

What does simultaneous mean on a water heater?

Simultaneous mode: allows both heating elements to operate at the same time. That is, if either thermostat (upper or lower) is calling for heat, the corresponding heating element is energized independent of the other.

Which element comes on first on a hot water heater?

lower element

When a hot water faucet is turned on, hot water will be drawn off the top of the tank. The thermostat for the lower element is activated by this cold water near the bottom of the tank. The lower element will start to heat the water.