technology is state of the art. We exclusively manufacture our own
circuit boards, guaranteeing the highest quality control of the system.
mixture is constantly regulated for optimal efficiency.
temperature flowing in and out is monitored continuously,
maintaining a constant temperature.
Legacy of Innovation and Dependability
For more than
sixty years, Takagi’s innovative technology has been efficiently
heating water in homes, businesses and institutions around the world.
We are confident of the build quality, dependability and long-term
performance of our products.
vs. Tanks: What Are The Differences?
and tankless units have operational differences you need to be aware
you can expect to use only approximately 70% of the tank’s volume;
i.e., a 50-gallon tank should provide approximately 35 gallons of
hot water. The burner initiates to reheat the tank, but the latter
can only recover at approximately 1 GPM. Thus, the recovery wait begins.
This stored volume, in combination with the standing pilot light,
usually results in an Energy Factor (EF) in the low range of 0.53
~ 0.62 for gas fired, tank-type water heaters. “Energy factor
is what the end user pays for. A water heater with an energy factor
of 0.62 means that for every dollar spent heating water, $0.62 is
being used to heat the water. The remaining $0.38 is wasted.”
Operation: A tank-type heater stores a volume of water
at an approximate set temperature 24/7/365. As you draw hot
water at your fixture, cold water replaces the outgoing water
in the tank and the temperature of the water in the tank begins
the tank has been set to a high temperature (which wastes
energy and shortens its life) and the flow rate is fairly
low, it will provide adequate hot water for one reasonably
If the tank is set near the ideal 120°F, one shower
will start to “run cold” in as little as
Operation: Takagi units operate differently. Each unit
modulates fully between its minimum and maximum BTU/hr input
ratings. It only uses the amount of gas needed to do the job,
so there’s no waste!
Takagi water heater requires a minimum flow of 0.75 GPM
(the T-K3=0.50 GPM) to initiate the burner. Without this
minimum flow, the heater may continuously run and heat
exchanger would overheat
maximum flow rate for any tankless unit that flow is continuous for
as long as there is demand. And unlike a tank-type heater, the temperature
remains constant at the selected set point. There is no stored water
and no pilot light, so Takagi’s high EF range is between 0.81
and 0.94, depending on the model and gas type.