Water Heater Size For Whirlpool Tub

You can estimate the necessary tank capacity in gallons based on the number of people in the house.

Water heater size for whirlpool tub.

Before we talk about tankless hot water heaters here is a recap of the above. Typically residential water heater sizes range from 40 to 100 gallon tanks. Tankless water heater sizing calculator. However every family has different water demand requirements.

A 15 amp circuit is the minimum standard but a 20 amp is better and is required by some tub manufacturers. Now you need to understand what temperature rise means. 03 18 2012 at 6 35 am. The water heater tank should be about 2 3 the size of the bathtub.

For example if you have a 40 gallon water heater it would be just large enough for a 60 gallon bathtub. Consequently these are the two most frequently installed sizes. 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. A standard whirlpool tub requires one 15 amp gfci receptacle to run the motor.

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. Incoming water temperature is a critical consideration which varies by region and season. 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. 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.

We fill it halfway wait about 40. For tankless water heaters the key criterion is hot water flow rate. If your whirlpool tub is equipped with a heater you will need an additional 15 amp gfci receptacle. This will happen if the water heater isn t large enough for the bathtub.

A very small bathtub might hold 40 gallons while a larger single person bathtub could. 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. Determining if a water heater is large enough for a bathtub is actually pretty simple. 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.

We already covered gpm. 1 or 2.