are tankless water heaters vented?
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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. 4.
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Within each plumbing system, a minimum of one stack vent or a vent stack shall extend outdoors to the open air. Air admittance valves are not mechanical vents. Mechanical vents are allowed in mobile homes, not site built homes.
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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.
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Venting any type of combustion is ideal. As forwarded by the ventless gas appliance industry, though, ventless gas fireplaces can be safely used because they burn a low enough quantity of gas that it will not present a hazard.
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A new tankless water heater costs between $2,500 and $4,500 installed, while a whole house tank costs between $600 and $800. A tankless hot water heater costs around $430 without installation and a traditional heater costs around $440.
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Average price for a tankless hot water heater ranges from $1000 – $2,800. Tankless water heaters are often a bit more complex to install and generally require additional piping around the unit. Be sure to factor in the installation cost in addition to the initial cost of the unit.
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Do all portable air conditioners need to vent? The short answer is yes. Much like any air conditioning system, all portable air conditioners need to be vented in some form or fashion.
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There are safety concerns, and building scientists point out that ventless heaters can damage homes if they're not sized or used correctly. ... Ventless heaters exhaust 100 percent of their combustion products into the house. This means chemicals like carbon monoxide, nitrogen dioxide and water vapor enter the house air.
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Unlike traditional storage tank water heaters, propane tankless units do not need to be vented through the roof. Their combustion fan blows exhaust from the units horizontally.
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Pressure-relief valves are an essential component of tankless water heaters. ... If there is ever an issue with your tankless water heater, the pressure relief valve is installed to serve as protection for the home and the homeowner.
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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.
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Installing a tankless water heater outside frees up indoor space and requires no additional venting. ... 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.
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Architects and engineers understand that when a tankless water heater reaches the end of its life it will likely leak, just like a tank. Even though the leak is substantially less than a tank, containing the water and conveying it safely away can save thousands of dollars in property damage.
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The reasons a tankless water heater can leak are really the same as the tanks. ... When installed properly by a good professional, a tankless water heater should last 15 to 20 years, compared to about eight to 12 years for tanks. And, many will never leak at all, just like the tanks.
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An indirect storage tank is heated through the boiler, this requires your boiler to get up to temperature to heat the water properly. A direct-fired water heater can be heated by propane, oil, or natural gas and has its own burner.
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['Takagi Indoor Tankless Water Heater. ... ', 'GASLAND Tankless Water Heater. ... ', 'EcoSmart ECO 11 Electric Tankless Water Heater. ... ', 'Blackhorse-Racing 6L 12KW Portable Tankless Hot Water Heater. ... ', 'Suburban 5117A Water Heaters 6 Gallon. ... ', 'Marey Propane Gas Tankless Water Heater.']
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Gas tankless water heaters work better than electric in cold climates. ... Though it is true that most electric tankless heaters do not perform well in cold weather, many natural gas tankless systems do.