Does a non condensing tankless water heater need a drain?

The excess heat that is not transferred to the water is expelled through the exhaust venting. This exhaust is higher temperature than on a condensing tankless heater to lessen the risk of corrosion. However, non-condensing heaters generally require metal exhaust venting to withstand the higher temperatures.

What is the downside of a tankless water heater?

The main disadvantage of tankless water heaters is their upfront cost (unit and installation) is significantly higher than tank-style heaters. Including installation, tankless water heaters cost 3 times more than tank-style water heaters on average. … they cannot provide hot water during a power outage.

What are the requirements for a tankless water heater?

Why are tankless water heaters condensing?

Condensing tankless water heaters save more money by recycling their byproducts to produce extra heat. Depending on how you’ve connected the condensation line, this byproduct can potentially be recycled back into your water lines, thereby reducing your water bills (slightly).

What’s the difference between condensing and non-condensing tankless?

A Non-Condensing tankless water heater will push these hot gases through its vent to the outside. They will then cool down outside the unit. … Condensing Tankless Water Heaters extract the additional heat from the exhaust gases through various means and therefore exhaust cooler gases, usually around 100 degree F.

Is a GFCI outlet required for tankless water heater?

In a garage, every 120, 15 and 20 Amp receptacle outlet needs to be GFCI protected, so if you have a tankless water heater in the garage, it should be protected as well.

Can you install a tankless water heater in a closet?

Your tankless water heater can be installed just about anywhere! Due to the small size of your water heater, it can be mounted in many small spaces, including closets, under sinks, in pantries, or under stair storage areas.

Do tankless water heaters have to be on an outside wall?

It is possible to install a tankless water heater outside and free up indoor space. The roof or side wall can be used as a vent for the tankless water heaters. Venting through the roof is required for traditional gas tank water heaters.

What are the electrical requirements for an electric tankless water heater?

One whole-house tankless water heater has four 7,000-watt elements, for a total electrical load of 28,000 watts. This load re- quires wire and a circuit breaker that will handle at least 120 amps, at a cost many times that of electrical service to a conventional tank water heater.

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

A gas tankless water heater only needs a 15-amp, 120 volt dedicated single-pole breaker for this purpose.

How do you wire a tankless hot water heater?

Do I need an electrician to install a tankless water heater?

You might also need to hire an electrician, depending on the type of tankless water heater you’re installing, whether you already have the necessary hookups in place, and the plumber’s skills. Either way, you should get estimates from several contractors before you select one or two to do the installation work for you.

Do tankless water heaters plug in?

It can be plugged into an outlet or wired directly to a service panel. An indoor, electric tankless water heater does not need to be vented to the outside. It does require 240-volt power. It may be plugged into a 240-volt outlet or directly wired to a service panel.

Does tankless water heater use more electricity?

Tankless heaters can be 24-34% more energy-efficient than regular water heaters for households that use 41 gallons or fewer of hot water daily. Tankless heaters can be 8-14% more energy-efficient for households that use around 86 gallons daily.

How much do plumbers charge to install a tankless water heater?

The average hourly rate for a plumber to install a tankless water heater falls between $45 and $150 per hour. Final labor totals average between$100 to $450.

How much does it cost to have a plumber install a tankless water heater?

Some plumbers charge between $45 and $150 per hour to install and connect a tankless water heater. The ultimate costs for labor usually average between $100 and $450. Need a new water heater? A top-rated professional will install it for you.

Where should a tankless water heater be installed?

The ideal location for your water heater is inside the home. Most installations are small and unobtrusive so they will easily fit in a pantry, under the stairs, or under your sink. If you must place the water heater outside, make sure it’s safe from direct sunlight, rain, and insects.

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.