Readers ask: How To Vent A Tankless Water Heater?

Can I use existing vent for tankless water heater?

The tankless heater cannot share vent piping with any other appliance, and it cannot use a masonry chimney flue for venting. Special stainless steel pipe. The standard galvanized vent from your old storage tank heater would quickly rust away if your tankless heater vented through it.

Can you use PVC to vent a tankless water heater?

Because tankless water heaters require PVC or special stainless steel piping as the vent material (which is much more expensive than copper, PEX or CPVC), a short venting run is better for both the heater itself, as well as your savings, so many homeowners choose to move the location of their heater closer to an

How far can a tankless water heater vent?

3 inches for a single pipe — they don’t require additional clearance through the wall. Concentric vents also offer a safety benefit, too. If the inner exhaust vent develops a leak, the exhaust air will stay contained within the intake pipe and thus cannot enter the home.

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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.

Can you vent tankless water heater in attic?

Simply put, as long as there is enough combustion air provided, tankless water heaters can be installed in any area of your home, from a utility room to a garage to, yes, even an old, dusty attic. in general, most plumbers recommend simply installing it where your old water heater was located.

Do all tankless water heaters require venting?

4. Outdoor tankless water heaters don’t need venting. In warmer climates, it’s easy to install a tankless water heater outdoors, with no additional venting required. Tankless units are designed to withstand below-freezing temperatures through self-warming capabilities that prevent freezing and cracking.

Can you mount a tankless water heater horizontal?

Gas or liquid propane tankless water heaters can be installed either vertically or horizontally.

Where is the best place to install a tankless water heater?

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.

How long do tankless water heaters last?

Most tankless water heaters have a life expectancy of more than 20 years. They also have easily replaceable parts that extend their life by many more years. In contrast, storage water heaters last 10–15 years.

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Can you vent a hot water heater under a deck?

As long as you abide by the venting instructions with the heater and maintain maximum runs (or equivalents) you are okay with thru the deck venting. if you want to inhale fumes from the water heater exhaust as you sit out on your deck, go for it

Does a tankless water heater 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 is the best brand for tankless water heaters?

Best tankless water heaters

  1. Best overall: Rinnai RUR160iN Water Heater. Courtesy of Amazon.
  2. Editor’s pick: Rinnai RU130iN. Courtesy of Amazon.
  3. Best for low prices: EcoSmart Eco 18 Electric Tankless Water Heater. Courtesy of Amazon.
  4. Best electric tankless water heater: Rheem RTEX-24.
  5. Best point-of-use heater: Bosch Tronic 3000.

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