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Hydronic heating with continuous circulation

  • US 6,299,071 B1
  • Filed: 06/19/1999
  • Issued: 10/09/2001
  • Est. Priority Date: 06/19/1999
  • Status: Expired due to Fees
First Claim
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1. A hydronic heating system having a boiler providing hot supply water and a reservoir of cooler return water, a boiler supply water line and a boiler return water line to said boiler reservoir, comprising,(a) a main loop fed boiler supply water by said boiler supply line, a main water pump compelling water flow through said main loop from said boiler supply line to said boiler return water line, (b) a satellite distribution station feeding one or more satellite station heating loops, (c) a satellite injection water connection along said main loop and a satellite return water connection along said main loop, (d) said satellite distribution station including a satellite heating loop supply header and satellite heating loop return header at opposite ends of said satellite loop and a satellite station pump pumping satellite water from said satellite return header to said satellite supply header, (e) a water temperature control valve body for modulating water flow through the satellite return water line to the main loop to control satellite water temperature constant, (f) said control valve body is immersed in said satellite water and (g) a thermostatic actuator attached to said valve for controlling the position of said valve in response to the satellite water temperature, (h) said control valve body has a seat, a moveable plug and a plug stem and (i) said thermostatic actuator positions said valve in response to heat flow from said valve plug, through said stem to said actuator, (j) whereby said valve controls heat flow from said main loop to said satellite loop.

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