The Rinnai Sensei tankless water heater offers 14 possible venting configurations and can use PVC, chlorinated polyvinyl chloride (CPVC), or polypropylene venting. Chlorinated polyvinyl chloride (CPVC) piping and polypropylene venting eliminate this worry.
Can you use PVC pipe on a tankless water heater?
Can you use CPVC for tankless water heater?
Can I vent water heater with PVC?
Do you need special pipes for tankless water heater?
Where do you vent a tankless water heater?
Tankless water heaters can vent through the roof or a side wall, creating more flexibility and options for placement. Traditional gas tank water heater require venting through the roof. Tankless water heaters use fans to blow exhaust from the unit horizontally, allowing vents to terminate on the side of a house.
What is the difference between condensing and non condensing water heaters?
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.
What pipe is best for hot water?
CPVC pipes are an ideal choice for hot water plumbing. They are made after adding material that goes through extra chlorination process which gives CPVC higher quality.
Is PEX better than CPVC?
CPVC Pipes Offer Better Water Pressure Than PEX
Depending on the fitting used, this can reduce the internal diameter of a ½” pipe by 21% to 35%. At a rate of 8 feet per second, PEX fittings create a 23% to 54% reduction in flow. For every ½” fitting, a PEX fitting can introduce 2 to 3 psi of pressure drop/fitting.
What type of pipe is used for furnace exhaust?
Traditional gas-fired, forced-air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes, or chimneys. In contrast, modern high-efficiency condensing furnaces exhaust much cooler gasses and need only plastic pipe materials—such as SS, PVC, CPVC, or ABS—for their exhaust vents.
How hot is tankless water heater exhaust?
The remaining heat creates a hot exhaust gas that requires metal venting, typically stainless steel or thick aluminum. Condensing units, on the other hand, are typically about 95 percent efficient, so the temperature of the exhaust gas is lower — around 110 to 120 degrees.
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.
How long do tankless water heaters last?
Longer Product Life
A standard water heater tank lasts about 8-12 years. A tankless water heater can last as long as 25 years!
Does a tankless water heater have to be installed on an exterior 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 better tankless or water heater?
Tankless: Gas and electric tankless water heaters run more efficiently than the conventional water heaters of the same fuel type. We rated the annual energy consumption cost Excellent for a gas model but only Fair for an electric, but both rate Very Good for energy efficiency.
How do you vent a tankless water heater?
Tankless water heaters can vent through the roof or a side wall, creating more flexibility and options for placement. Traditional gas tank water heater require venting through the roof. Tankless water heaters use fans to blow exhaust from the unit horizontally, allowing vents to terminate on the side of a house.
How acidic is tankless water heater condensate?
“Water-heater condensate usually has a pH of two or three,” says Oshiro. “This acid can corrode drain pipe walls over time, leading to permanent damage.” He says one solution is installing neutralizer agent that essentially removes the liquid’s acidity, protecting the pipes from damage.
Is it better to use copper or plastic pipes?
PVC pipe is thicker than copper which also helps with impact damages and abrasions. Less noise compared to copper piping, even with higher water velocities and speeds. Easier installation vs copper pipes, especially for do-it-yourself enthusiast. Significantly cheaper than alternative option.
Is galvanized pipe OK for gas?
You do not want to use galvanized pipe for gas because of the galvanized coating. Over time pieces of the galvanized steel will flake off and clog your gas regulators and burner units. Never mix galvanized and black iron or where they touch corrosion will be accelerated.
How long does PEX plumbing last?
PEX: Due to its flexibility and durability, PEX piping should last at least 50 years. PVC / CPVC: Under typical conditions, these pipes should last up to 100 years.
Can a hot water heater be vented with PVC?
A standard will be needed for plastic flue pipes that should include a temperature gauge and a high limit probe. Then PVC, CPVC and polypropylene flue gas piping can be safely used on high efficiency boilers and water heaters.