Will a 40 gallon water heater fill a bathtub?

By Robert Flores / October 26, 2022

Determining if a water heater is large enough for a bathtub is actually pretty simple; 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. Oct 6, 2011

Is 40000 Btu good for a water heater?

At Home Depot, a 40,000 Btu/hr. input, 50-gallon water heater is considered quick recovery. They consider 36,000 Btu/hr. to be standard recovery. Try to buy a 50,000 Btu/hr. or higher 50-gallon water heater from Home Depot. Oct 1, 2002

What is the downside of a tankless water heater?

In addition to high upfront costs, tankless water heaters have several other disadvantages compared to tank-style water heaters: they take longer to deliver hot water. the water temperature is inconsistent when multiple outlets are on simultaneously. they cannot provide hot water during a power outage. Oct 16, 2022

What size tankless water heater do I need for a family of 4?

What Size Tankless Water Heater Do I Need For A Family Of 2, 3, 4, 5, Or 6? Number Of Family Members: Gas Tankless Heater Size (GPM) Electric Tankless Heater Size (kW) What size tankless water heater do I need for a family of 3? 7-9 GPM 15-23 kW What size tankless water heater do I need for a family of 4? 8-10 GPM 20-28 kW 3 more rows

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What size tankless water heater do I need for a family of 2?

Sizing Guide for Residential Tankless Water heater Household Occupants Usage Capacity Required (Measured in Gallon) 1-2 people High 40-50 2-3 people Regular/Low 40 High 40-50 6 more rows

Which is better tank or tankless water heater?

According to Energy.gov, “For homes that use 41 gallons or less of hot water daily, demand (or tankless) water heaters can be 24% to 34% more energy efficient than conventional storage tank water heaters.” Tankless water heaters (if gas-fired) will save homeowners over $100 annually the longer they remain in service.

What is the best tankless water heater for a family of 5?

The Eemax 27kW Electric Tankless water heater easily makes our list with its whole-house water heater for a family of four or five. Hot water production ranges from 3 to 7 gallons per minute with adjustable, single-degree accuracy from 80 to 140 degrees Fahrenheit. Sept 13, 2022

What is the difference between a condensing and non condensing tankless water heater?

Condensing tankless heaters use a dual heat exchanger design to make maximum use of the energy delivered to the system. Non-condensing tankless water heaters utilize a single heat exchanger so they vent more heat in the exhaust gases.

Is it cheaper to take a bath or shower?

Water Usage A tub takes up a lot of water making it more costly than a shower. While it may seem comfortable to soak yourself in a warm bath, it takes up a lot of water, which may result in high sewerage bills and monthly water expenses.

How much does a 1 hour shower cost?

Assuming that the rates of electricity and water in your area are near the national average, 12 cents per kilowatt-hour and $1.50/1k U.S. gallons, each shower will cost you 25 cents or 51 cents per day for the whole household, according to the shower cost calculator by Omni. Apr 22, 2019

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How much does it cost to shower every day?

This should come out much less. People spend on average eight minutes in the shower which costs between 20-30p and uses 50 litres of water. So those who have a quick shower of about three minutes will spend much less – probably under 10p. So two of those average showers a day costs about 50p – or £161 over a year. Sept 2, 2022

Can I replace my 40 gallon water heater with a tankless water heater?

This is simply due to the fact that tank water heaters are constantly heating and reheating 40-75 gallons of water while your tankless only operates on demand. With the help of a professional you can easily convert from a tank water heater to a tankless water heater. Feb 18, 2021

Can you run out of hot water with a tankless water heater?

Although a tankless system can’t run out of hot water, it can still be overwhelmed with demand. A single tap won’t do this: run that single shower all you want, you’ll keep getting hot water. (But please don’t do this! Save water, save energy!) Sept 11, 2017

Can you oversize a tankless water heater?

When it comes to tankless water heaters, size matters. If you install a unit that’s too small, you won’t have enough hot water to meet demand. On the other hand, an oversized unit will cost more to purchase and operate than necessary, negating one of the biggest benefits of tankless water heaters—energy efficiency! Feb 23, 2020

Can my breaker panel handle a tankless water heater?

Do not use the same calculated amperage as your final size breaker for tankless water heater. Otherwise, you’ll risk accidents because there’ll be no protection for a power surge. The National Electric Code (NEC) states that a circuit breaker should only handle 80% or less of its total capacity. Oct 3, 2022

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Do tankless water heaters require 220?

Requirements for electric tankless water heaters: Voltage — Many retailers sell units that will accommodate 110V, 120V, 208V, 220V, 240V, and 277V.

Can I heat my house with a tankless hot water heater?

With a hydronic air handler, a tankless water heater can perform two jobs, providing heat and domestic hot water to a home. Hydronic forced-air heating can also address two common concerns with electric backup heat, Goyal says: the smell and the cost. Aug 10, 2020

How hard is it to switch to a tankless water heater?

Tankless water heater replacement is a complex process that involves the skills of a highly trained technician. Unless you are experienced and comfortable enough to solder pipe, make gas connections and following local codes, hire a licensed professional.

How do I convert my gas water heater to tankless?

This includes: Mounting the tankless water heater. Running the water heater’s vent to meet local code regulations (for gas models) Installing the gas line (for gas models) Installing new water lines. Installing the pressure relief valve. Connecting the electrical supply to the water heater. More items…

Can I use existing vent for tankless water heater?

Can You Use the Existing Vent for the Tankless Water Heater? It is not recommended that you use the existing vent pipe from an old gas tank water heater. The existing vent for tankless water heaters may not be compatible because most are galvanized vent piping and will rust quickly. Jul 15, 2022

Resources

https://www.startribune.com/is-your-water-heater-too-small-for-your-bathtub/131206354/
https://www.pmmag.com/articles/86574-how-to-keep-home-depot-out-of-the-water-heater-game
https://prudentreviews.com/tankless-water-heaters-pros-and-cons/

What Size Tankless Water Heater Do I Need? (2,3,4,5,6 Family)

What Size Tankless Water Heater Do I Need?


https://www.petro.com/resource-center/tankless-hot-water-heaters-vs-tank-storage-water-heaters
https://www.forbes.com/home-improvement/plumbing/best-tankless-water-heaters/
https://www.hotwater.com/water-heaters/residential/non-condensing-gas-tankless/

Is it Cheaper to Install a Tub or a Shower?


https://www.rent.com/blog/hot-showers-annual-cost/
https://www.walesonline.co.uk/news/cost-of-living/how-much-cost-run-bath-24913720
https://www.mgpmechanical.com/blog/converting-to-tankless-water-heater
https://www.markcarpenterplumbing.com/blog/2017/september/will-a-tankless-water-heater-really-never-run-ou/

What Size Tankless Water Heater Do I Need?

What Size Breaker for Electric Tankless Water Heater?

Tankless Water Heater Buying Guide

Tankless hydronic heating gets simpler


https://www.homedepot.com/c/ah/how-to-install-a-tankless-gas-water-heater/9ba683603be9fa5395fab904246ec3f
https://www.onehourheatandair.com/articles/expert-tips/home-life/how-to-make-the-tank-to-tankless-water-heater-co/
https://www.monkeywrenchplumbers.com/learning-center/existing-venting-for-tankless-water-heater

About the author

Robert Flores