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- TK3 Tankless Instant Hot Water Heater -
Please don't forget to see items related to these Takagi TK3 tankless water heaters:
"Is it possible to drain a tankless water heater to prevent freeze damage when not in use?"
Simple answer: yes, BUT The T-K3 (TK3) unit comes equipped with heating blocks to prevent freezing which can damage the heat exchanger. The T-K3 also ignites automatically, without the water flow, to prevent freezing the heat exchanger as well. The freeze protection system will activate when the temperature drops below 36.5°F and is rated to protect the unit down to -22°F in a wind-free environment. If you will not be using your heater for a long period of time or if the temperatures (including wind chill) drop below -22°F; Simply drain both lines 'to' and 'from' the unit. As long as there are no check valves in the way, that should drain the water from the unit. To guarantee that there is no water in the unit, we recommend two drain valves - one before and one after the unit - as well as blowing air through the water line.
"What type of vent do these tankless water heaters require?"
These tankless water heaters require Category III stainless steel vent only.
"I would like to convert my natural gas tankless heater to be able to use LPG (propane) gas instead. Do you offer a conversion kit?"
Sorry, but we don't. Even if we could, we probably wouldn't, as in most cases it is not a good idea to convert one type of gas for another. Burners can be different, orifices, etc. Not only is the BTU rating different for these two gases, but also the heat of the flames and a number of other factors. We simply do not wish to sell ("profit from") something that might create a non-safe environment.
"If these units don't have a tank, how do they know when to turn on?"
These tankless water heaters have a flow switch built into them. When you turn on the hot side of a faucet the water begins moving. Once the water is traveling at minimum flow rate for the heater, the flow switch will turn on the gas or electricity.
"What's the difference between a conventional flue and a direct vent?"
A conventional flue is what most people are familiar with. It typically consists of a double-wall flue pipe going from the top of the heater through the roof, venting outside. The fixture draws its combustion air from the space around it (utility room, garage, hallway, etc.). A direct-vent unit vents and draws its combustion air through a specially designed pipe from the outside via an adjacent wall.
"Your products specify the 'temp. rise' based on the GPM flow; what do you mean by this?"
Temperature rise is the amount the heater raises the temperature of the incoming water, based on the flow rate shown of that water.
"Will a tankless water heater save me money on my utility bills?"
Yes, however, the amount of savings will depend on the type of fuel used to heat the water. Usually electricity is more expensive than propane, and propane is usually more expensive than natural gas. In most cases you and the environment will benefit from a tankless water heater.
"Will the Hot Water Heater Scale Inhibitor System change the taste or odor of water?"
No. The active ingredient is colorless, tasteless, and odorless when used as recommended.
"How does the Hot Water Heater Scale Inhibitor System prevent corrosion?"
It forms a thin protective layer on the inside of pipes and metal parts. This film or layer is microscopic in thickness and will not build up over time.
"What are the best reasons to install a Scale Inhibitor System?"
It helps protect the system by removing scale and adding to the longevity of the heater.
"Is the Hot Water Heater Scale Inhibitor System's active ingredient safe?"
Yes! All ingredients used are 100% pure food grade materials. They are approved by the USDA and meet purity requirements as a food additive by the World Health Organization.
"What happens if you don't change cartridges often enough on the Scale Inhibitor System?"
The original water condition and problem will reappear. Hardness will begin to build up again, which you want to avoid.
Takagi tankless water heaters must be installed by a licensed professional.
We hope that we have helped you with the Takagi TK3 tankless water heater at PlumbingStore.com.
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