Water Heater Size For Whirlpool Tub

If your whirlpool tub is equipped with a heater you will need an additional 15 amp gfci receptacle.

Water heater size for whirlpool tub.

Incoming water temperature is a critical consideration which varies by region and season. 1 or 2. Before we talk about tankless hot water heaters here is a recap of the above. We fill it halfway wait about 40.

Now you need to understand what temperature rise means. Your tub is only halfway full and you re out of hot water. However every family has different water demand requirements. That is a water heater in the north either tank or tankless will need a higher btu input in the winter than the summer to heat and deliver water to a given temperature.

Determining if a water heater is large enough for a bathtub is actually pretty simple. We have a 6 foot whirlpool tub in our bathroom that we hardly use because filling it takes more than an hour since we only have a 40 gallon water heater. A standard whirlpool tub requires one 15 amp gfci receptacle to run the motor. We already covered gpm.

Usually most homeowners find that either a 40 or 50 gallon hot water tank is the best fit for their needs. For tankless water heaters the key criterion is hot water flow rate. This will happen if the water heater isn t large enough for the bathtub. For example if you have a 40 gallon water heater it would be just large enough for a 60 gallon bathtub.

Before we get to how to use the calculator to size a tankless water heater let s talk about the factors that go into understanding what size inline water heater you need. You should post a photo that sounds like a cool tub but an average hot water heater is 40 gallons it would take 2 3 tankfuls to fill that tub. If filling a fairly large whirlpool tub is something you like to do you re stretching the capacity of a 50 gallon standard water heater. 03 18 2012 at 6 35 am.

For a tank style heater household size is a simple indicator of hot water needs. You can fill it but no one else can take a hot shower for about an hour or so until the water heater catches up. Consequently these are the two most frequently installed sizes. You can estimate the necessary tank capacity in gallons based on the number of people in the house.

A very small bathtub might hold 40 gallons while a larger single person bathtub could. A 15 amp circuit is the minimum standard but a 20 amp is better and is required by some tub manufacturers.