A hot water tank size for family of 5 would be in the 230-300L range (60-80 gallons)*. For an instantaneous hot water unit servicing two water saving shower heads, you would need a hot water heater with a flow rate of at least 16L/min.
What size hot water tank do I need for a family of 5?
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).
What size hot water system do I need for a family of 4?
Hot water for a family of four
To put it briefly, for a family of 4 you will need: Electric Hot Water: A 125160L tank for a continuous system or 250315L for off-peak. Gas Hot Water: A tank of about 135170L, however there are also instantaneous system options.
How do you determine what size hot water tank you need?
You can estimate the necessary tank capacity (in gallons) based on the number of people in the house:
- 1 or 2 people23 to 36 gallons.
- 2 to 4 people36 to 46 gallons.
- 3 to 5 people46 to 56 gallons.
- 5 or more peopleover 56 gallons (add 10 gallons per additional person)
Is a 40 gallon water heater enough for a family of 5?
A hot water heater that has an FHR within a couple gallons of the number you just calculated should meet your family’s needs.2-3 people need a 40-gallon water heater. 3-4 people need a 40-50 gallon water heater. 5 or more people need a 50-80 gallon water heater.
Is a 50 gallon water heater enough for a family of 5?
Water Heater Sizes
The answer to this question will vary depending on the total number of kids you have. 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.
What size hot water heater do I need for a family of 6?
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.
What size hot water system do I need for a family of 3?
Electric hot water size guide
| Household size | Electric storage hot water system size |
|---|---|
| 1 – 3 people | 125 litre |
| 3 – 5 people | 160 litre |
| 4 – 6 people | 250 litre |
| 6 – 8 people | 315 litre |
What size hot water system do I need for a family of 2?
Every family and home is different, so you need to make sure you choose carefully when deciding what size hot water system to install. Hot water heater sizes start at around 25L and go up to around 400L.
Electric hot water system.
| Number of people | Peak usage | Tank size |
|---|---|---|
| 3 6 | High | 315 |
| Low | 160 | |
| 2 4 | High | 160 |
| Low | 125 |
How much hot water does a 10 minute shower use?
The average shower water usage is calculated by multiplying that average flow rate of 2.1 gallons per minute by the average shower length of 8.2 minutes. So, 17.2 gallons is, on average, how much water is used. In a 10-minute shower, you’ll go through 21 gallons.
What is a normal size hot water tank?
A tank size of 36- to 46-gallons is best for homes of up to four people. A home with five people can be served by a 46- to 56-gallon tank. For six or more people, look at larger tanks with a 60-gallon or greater capacity.
Is 40 gallon water heater enough for a family of 4?
Typically, the rule-of-thumb is that you want a 40 gallon tank for 1 to 4 people, a 50 gallon tank for 4 to 6 people, and a 50 gallon high recovery or 75 gallon tank for 6 to 8 people. Energy consumption for 40 and 50 gallon standard water heaters is quite comparable.
Is a 20 gallon hot water heater big enough?
20-gallon water heaters are a unique size. They’re large enough for smaller homes that don’t require large amounts of hot water, yet they’re an excellent choice for high-demand point-of-use (POU) applications such as bathrooms with showers. The versatility of the 20-gallon size makes these heaters ideal for many uses.
How many showers can you have in a 40-gallon tank?
A 40-gallon water heater can provide up to 2 showers in an hour (if you’re not using any other water appliances).
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 many showers can you take with a 50 gallon water heater?
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.
How long should a 38 gallon hot water heater last?
While today’s water heaters are better designed than older models, they still require regular maintenance in order to prolong their lives. With regular inspection, draining, and flushing, you can expect a gas water heater to last anywhere from 8-12 years and an electric water heater to last anywhere from 10-15 years.
What size water heater do I need Litres?
In a home with low consumption, you’ll need 20 to 30 litres of hot water per person per day. In a home with average consumption, you’ll need 30 to 50 litres of hot water per person per day. In a high-consumption home, you’ll need 50 to 70 litres of hot water per person per day.
How many Litres of hot water does a shower use?
An average shower uses 56 litres (15 gallons) of hot water based on a water saving shower head using 7 litres/min (1.8 gallons/min) and a shower duration of 8 minutes. Assuming an average 8 minute hot water shower, consumption is 56 litres (15 gallons) of hot water to take a shower.
Is a 40 minute shower too long?
Showering for too long Between the steam, streaming water, and warmth, it’s tempting to spend 15, 20, even 30 minutes in the shower, but many experts say anything more than 10 minutes is too much. You shouldn’t shower for more than 5 to 10 minutes, says Dr. Farris.
How long of a shower can you take with a 30 gallon water heater?
Say your electric heater is 30 gallons.
WAIT TIME FOR HOT SHOWER.
| Tank Capacity (gallons) | Minutes of Hot Water (electric) | Minutes of Hot Water (gas) |
|---|---|---|
| 30 | 19 | 30 |
| 40 | 25 | 40 |
| 50 | 31 | 50 |
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