# What size hot water heater do I need for a 4 bedroom house?

## What size hot water heater do I need for a 4 bedroom house?

So for a four-bedroom house, you’d calculate based on having five people live there. Multiply this number by 12 gallons, and that is the FHR. So in a three-bedroom home that has four people, the FHR would be 48 gallons (4×12 gallons).

## What size water heater do I need for a 4 bedroom 3 bath house?

For example, a family of 3 to 4 people should purchase a 50 – 60 gallon water heater. On the other hand, a household with 5 – 7 people may require a water heater with a 60 – 80 gallon water tank.

Is a 30 gallon water heater enough for 4 people?

A 30 gallon water heater should be able to supply enough hot water to meet the needs of a household of 1 -2 people with only one bathroom. A good way of measuring your hot water requirements is calculate your peak hot water usage and compare it the first hour rating of a water heater.

Is a 50 gallon water heater enough?

A 50 gallon water heater is the most common tank we install. It is such a common size because it can supply hot water for 3 – 5 people. Considering an average shower uses 17.2 gallons of water you can typically have enough hot water for up to five people to take a shower within an hour.

### What size water heater do two people 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.

### Which is better tall or short water heater?

The main difference between short and tall water heaters is just the height and not the efficiency of the heater. Choosing between the two will depend on the height of the plumbing connections and where you can fit the heater. Taller heaters are useful to run more hot water if there are several people in your home.

Is there a big difference between a 40 gallon and 50 gallon water heater?

The Energy Factor The cycling losses measure how much heat is lost as the water circulates through the system. With the energy factors being equal, the difference in cost of running a 50-gallon heater over a 40-gallon heater is essentially insignificant.

How long should a 50 gallon water heater last?

Factors Affecting The Lifespan Of A 50-Gallon Water Heater. The standard life expectancy of the heating element in oil or gas water heaters is set at 8 to 12 years. On the other hand, electric tankless water heaters promise hot showers for as long as 18 -20 years.

#### How many showers can you take with a 50 gallon water heater?

So if ratio would be close, you should be able to get about 4 showers on 50 gallons, but you will have the heater kicking before the end, so maybe 5-6 should be doable, as long as not looooong showers.

#### How big of a water heater do I need for a family of 4?

If your family size is between 3 and 4, you’ll need at least a 50-gallon capacity tank (electric) or a 40-gallon capacity tank (natural gas or liquid propane). If your family size is 5 or more, you’ll need an 80-gallon tank (electric) or a 50-gallon tank (natural gas or liquid propane).

How big of a water heater do I need for a bathtub?

If one or more people in your house choose to take a bath in the morning instead of showering, you may require a larger water heater size. A standard small bathtub is able to hold an average of 40 gallons of water. On the other hand, a large bathtub may be able to accommodate up to 140 gallons of water.

What’s the best way to size a water heater?

To properly size a storage water heater for your home — including a heat pump water heater with a tank — use the water heater’s first hour rating. The first hour rating is the number of gallons of hot water the heater can supply per hour (starting with a tank full of hot water).

## How big does a solar water heater need to be?

A large tank is appropriate for four to six people. For active systems, the size of the solar storage tank increases with the size of the collector — typically 1.5 gallons per square foot of collector. This helps prevent the system from overheating when the demand for hot water is low.