Tankless water heater plumbing

What is the downside of a tankless water heater?

The primary disadvantage of on demand or instant hot water heaters is the upfront cost. The smaller units that you often see won’t produce enough hot water to serve most households. They’ll only serve one faucet at a time—a problem if you want to shower while the dishwasher is running.

Do tankless water heaters need a drain?

Every major brand of tankless requires a drain pan if the unit is installed where a leak can cause damage to the home or building. Architects and engineers understand that when a tankless water heater reaches the end of its life it will likely leak, just like a tank.

Can a homeowner install a tankless water heater?

Installation . While it is possible to install your own tankless water heater , it’s not a job for inexperienced do-it-yourselfers. There are a number of different sizes and styles of tankless water heaters , including propane, natural gas and electric, along with single-room or whole-house sized models.

Can a tankless water heater fill a tub?

A small tankless water heater can take a long time to fill a large tub . Two smaller water heaters can do the job of one big water heater .

What are the pros and cons of tankless hot water heaters?

Are Tankless Water Heaters Worth It? 10 Pros and Cons Pro #1: Instant Hot Water. Con #1: Inconsistent Temperatures. Pro #2: Longer Lifespan. Con #2: Higher Initial Cost. Pro #3: Lower Month-to-Month Costs . Con #3: Limited Hot Water Supply. Pro #4: Space Savings . Con #4: Additional Equipment is Often Necessary.

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 be overwhelmed with demand. If more than one tap is on-demand hot water at the same time, however, such as other showers or a running washing machine, the water heater will struggle to keep up and drain extra power.

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What size breaker do I need for a tankless water heater?

Electrical Requirements

Model Recommended Breaker Recommended Minimum Wire Gauge
ECO 18 2 x 40 Amps DP 2x #8 AWG
ECO 11 1 x 60 Amps DP 1x #6 AWG
ECO 8 1 x 40 Amps DP 1x #8 AWG
POU 6 1 x 30 Amps 1x #10 AWG

What size tankless water heater do I need for a family of 5?

In short, a family of 5 would need a 10 GPM gas tankless heater or 27 kW electric tankless heater if you live in the northern part of the USA where the input water has a lower temperature. There the tankless heater has to work extra hard to bring the water temperature up to 110˚F or 120˚F.

What is the lifespan of a tankless water heater?

20 years

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

Sizing Guide for Residential Tankless Water heater
Household Occupants Usage Capacity Required (Measured in Gallon)
2-3 people High 40-50
3- 4 people Regular/Low 40
High 50-75

Are tankless water heaters bad for water softeners?

Tankless Water Heaters For customers who either already have a tankless water heater or are considering switching to tankless , a water softener is a great idea. Because it helps protect your water heater , we will actually recommend a water softener with all tankless installs we do!

Why do tankless water heaters cost more to install?

In general, purchasing and installing a tankless water heater costs about 2 to 2.5 times as much as a standard water heater because of the higher production costs of the unit, venting, and resizing the gas line and gas meter required to support the unit’s demand.

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Why is tankless water heater installation so expensive?

Installation is expensive because the unit needs a bigger gas supply than a conventional water heater does, and it needs to run its own exhaust flue to the exterior. Installation costs can vary widely, depending on the location of the flue and the gas supply. The unit itself costs between $800 and $1,000.