what is condensate vent for tankless water heater

You may be considering installing a Tankless Water Heater Venting in your home to save money on your utility bills. Tankless water heaters are convenient, take up little space and save you money. Gas-fueled water heaters are more complex than a traditional water heater installation.

vent for tankless water heate
what is condensate vent for tankless water heater
  • Vent to the outside. If you want to install a tankless water heater, there are two types to consider: gas-fired or electric. Both are safe and efficient, but electric models require special venting and cooling systems. Gas-fueled models require access to a separate air source or use a different method of heating.
  • No common venting. The tankless heater cannot share vent piping with any other appliance, and it cannot use a masonry chimney flue for venting.  Tankless water heaters are incredibly efficient, but they’re not for everyone. In order to get the most out of your tankless water heater, you need to make sure that you’re not using it for other things, like a wood stove or propane heater. You also need to make sure that any other appliances in your house are properly vented. The most common use for a tankless water heater is for hot water and only for hot water. ”
  • Special stainless steel pipe. The vent pipe must be made of stainless steel for venting corrosive gases. The standard galvanized vent from your old heater would quickly rust away if your tankless heater vented through it.
  • Downhill slope or condensate drain. The vent pipe should be sloping downward from or have a condensate drain near the exhaust outlet.  This is to prevent condensate from draining back into the heater. If the heat exchanger is not kept clear of corrosive condensate, its durability will shorten by years..
  • Short vent run. The exhaust should be as short as possible to ensure complete combustion of the gases from the home. Because the stainless steel vent pipe is much more expensive. Thinking of using a tankless heater, it makes sense to move the vent closer to where the gas supply and water supply piping will leave the house.

7 Tips For Tankless Water Heater Vent

Features Discuss Venting Tankless Water Heater

When choosing a tankless water heater, one of the most important decisions is to find the one that fits your needs.

Once a tankless water heater has been selected for installation, the choice of whether a vent pipe is needed or not is one of the most important decisions made during the installation process.

Tankless hot water heaters require special venting to blow hot exhaust gas outside, where it dissipates. Unlike traditional tank-style water heaters, gas tankless hot water heaters do not require a water tank.

what is the downside of a tankless water heater? (pros and cons)

Tankless Water Heater Venting Features.

  1. Indoor gas water heaters draw in outside air, while tankless water heaters are vented directly or through a power vent. Direct-vent units draw in air from outside the home or building, and have two vents. This configuration allows tankless units to fit in smaller spaces. Power vent units, also known as chimney boxes, heat only one room because they only have an exhaust vent. When placed in a larger area, they help to create plenty of hot air and create less odor.
  2. Outside tankless water heaters free up indoor space. Tankless units withstand below-freezing temperatures thanks to automatic, self-warming components and can therefore be installed outside in warmer climates. Installing a tankless water heater outside frees up indoor space and requires no additional piping.
  3. Tankless water heater design allows for multiple venting options, whereas tank-based models can only vent through the roof.Traditional gas tank water heaters require vents which can only be installed on the side of the house. Tankless water heaters use exhaust fans to blow the heat outside.
  4. To lower the cost of installation and make installation easier, condensing tankless water heaters are up to 95% more efficient The condensing units (CCU) and the non-condensing units (NCU) generate a comparatively cooler exhaust gas. The exhaust vent can be PVC or polypropylene, an affordable feature that lowers the cost of installation.
  5. Tankless water heaters with a concentric vent design provide additional safety benefits. The intake and outtake pipes are in the same 5″ concentric vent.so the vent is cool to the touch when the air is cooled. If a pipe develops a leak, the air inside doesn’t leak out because the outer vent is insulated.
  6. Recess boxes are sinks that allow tankless water heaters to fit inside walls and not stuck in the exterior of a home. Certain home builders now offer recess boxes for non-condensing tankless water heaters. This configuration allowed the unit to fit inside of the house’s framing.
  7. Pipe covers and creative termination points provide aesthetically pleasing venting solutions. Tankless unit manufacturers have different installation options, and it’s best to specify what kind of unit you have and what kind of pipes you want covered.

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