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A Heat Source and Indirect Storage Tank Hookup

This is how you can set up a tankless water heater as a heat source with an indirect storage tank. This gives you alot of Domestic Hot Water along with a Closed Heating Loop Zone for lower Temperature Systems - Radiant or Radiators.

Tankless Water Heater as a Heat Source and Indirect Storage Tank

This is only an example. Actual layouts vary from job to job. 

 

List of materials needed for a project like this (Click Link below to Purchase Product and see more Information)

Domestic Hot Water Side

Quantity 1 - Takagi Gas Tankless Water Heaters

Quantity 1 to 2 - Ball Valves for Domestic Hot Water Side

Quantity 1 to 2 - Boiler Drain and Hose Bibs

Quantity 1 - Stainless Steel Pump  (Size Depends on System Taco 009 Stainless for this one)

Quantity 1 - Stainless Pump Flanges (Most Likely 1 to 1 1/4 Inch)

Quantity 1 - Indirect Storage Tanks

Quantity 1 - Johnson Controls Temperature Controls

Quantity 1 - Pressure Relief Valves

Quantity 1 - Domestic Hot Water Heating Mixing Valves

Quantity 1 - Domestic Hot Water Flow Checks

  

Hydronic Heating Side (Trim)

Quantity 1 - Hydronic Heating Mixing Valves

Quantity 3 to 6 - Ball Valves for Hydronic Heating Side

Quantity 1 to 2 - Boiler Drain and Hose Bibs

Quantity 3+ - Temperature Guages and Pressure Tempeature Guages and Tees

Quantity 1 - Hydronic Heating Expansion Tanks

Quantity 1+ - Cast Iron Pump (For Heating Side and Depends on System One for each zone)

Quantity 1+ - Pump Flanges (For Heating Side and Most Likely 3/4 Inch)

Qunatity 1 - Hydronic Circulator Switching Relay

Quantity 1 - Hydronic Heating Thermostats and Floor Sensors

Quantity 1 - Hydronic BackFlow Preventers and Combo AutoFill Valves

Quantity X - Copper Fittings and Brass Fittings

 

Hydronic Heating Side (Distribution)

Quantity X - Hydronic Radiant Heat Pex Tubing (Depends on Systyem)

Quantity X - Hydronic Radiators and Convectors (Depends on System)

 

X = Various Amounts of Product needed - dependant on actual system