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Volume Indirect Water Heating for Residential & Commercial Applications
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The Takagi T-K2 Tankless Water Heater can be used as an indirect water heater in
conjunction with a storage tank for high volume situations. The Storage tank should be 30 gallons or larger.
The standby losses that are associated typical gas water heaters are eliminated because
there is no flue dumping the stored heat out of the storage tank. Recovery time can be
over 5 to 6 times faster than a typical gas water heater
due to the high recovery rate of the Takagi T-K2. Efficiency is also maintained over time, which is not the
case with a storage tank water heaters.
You can use a typical electric tank water heater for the storage tank -
you disconnect the heating elements and use the lower aquastat to activate the circulator relay to turn the
circulator so when the tank's aquastat calls for hot water - it activates the circulator that will pump
water from the tank to the Takagi T-K2 tankless water heater and then back to the tank.
You can use different size tanks to accommodate up to 5 bathrooms or more. For those of you
using multi-shower heads - this is an excellent and efficient way to use multi-shower heads
and still get the efficiency of a tankless water heater.
Also - if you want to use this in an open or closed loop heating system - you can heat your radiant floors with this
also as show with the optional domestic hot water recirculating line.
Houseneeds, Inc sells all the components needed for this system.
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Components for an Indirect Water Heating System
All the below components can be found on the Heating Supply Page or
by clicking
here.
Use the browser back button to return to this page.
You must use bronze parts for an all open loop systems.
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1.
Taco 0011 Bronze Pump - $297.00
2.
Bronze 3/4 inch flange set - $29.75 or $41.27 for shut off flanges
3.
Bronze 3/4 inch
flow check - $28.20
4.
Circulator Relay - $55.20
Please Note: You should obtain the electric hot water storage tank from a local source as the cost to ship
one of these is generally more than the cost of tank it self.
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Components for an Open or Closed Loop Heating System
Since the Takagi T-K2 has a built in aquastat - the T-K2 can be used
in a closed loop heating system or with a heat exchanger with or without
a tank.
All the needed components can be found on the Heating Supply Page or
by clicking
here
How?
With a Tank The heat exchanger will be feed from the storage tank and the back side of
the heat exchanger will feed your hydronic or radiant heat system. This way - you can
keep the potable water and heating system separate. We sell a flat plate heat
exchanger for this system. Click on the "Contact Us" button
on the top of this page or most other pages to inquire about this system.
Without a Tank In conjunction with a water sensor flow switch and flat
plate heat exchanger - the Takagi T-K2 will provide hot water and act as a
heat source for your radiant or hydronic system.
Contact us for more information on this.
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