Applications 
 
Space Heating Application 
 
The FLASH T-K2 can be used for space heating as well as potable heating of hot water applications. 
 
WARNING 
 
•  Toxic chemicals such as used for boiler treatments chemical, alcohol, glycerol and glycol 
group will not be introduced into the system when used for potable water and space heating. 
•  The FLASH T-K2 can be used to supply potable water and space heating and shall not be 
connected to any heating system or component(s) previously used with non-potable water 
where any chemicals were added to the water heating appliances. 
•  When the system requires water for space heating at temperatures higher than required for 
other used, a means such as a mixing valve shall be installed to temper the water for those 
uses in order to reduce scald hazard potential. 
•  Water temperature over 125 °F can cause severe burns instantly or death from scalds. 
•  Chemicals such as diluted Glycol can be used for radiant floor, Hydro-warm air or Baseboard 
heating only. 
 
Basic system drawings and Schematics. 
 
Heating application only: 
 
 
 
Warning: This illustration is for concept only. There are a wide variety of variations to the application 
of controls and equipment presented applications. Designers must add all necessary safety and 
auxiliary equipment to conform to code requirements and design practice. 
 
For more details, contact Technical Department at (888) 882-5244 
 
 
 
Make u
 Water Su
l
 
Ex
ansion Tank
Pressure Relief Valve
Air Vent
Pum
Radiant, Hydro or Baseboard
Heating Equipment.