RedyTemp®'s Green by-design systems solve a number of hot water circulation problems
Check valves allow flow in one direction (hot line to cold line) while preventing flow in the opposite direction (cold line to hot line).
HOT to COLD COLD to HOT
Opening a cold water faucet or watering your lawn instantly drops the water pressure throughout the cold water pipes. The higher pressure in the hot water line forces water past check valves and "normally open" thermostatic valves intermixing with cold water exiting out the open cold tap. Hot water line siphoning is inefficient because siphoned water is replaced with very cold city water entering your water heater. The costly energy waste, decreased water heater life cycle and the frustrations of waiting for cold water associated with hot water siphoning justifies investing in hot water circulation technology that prevents these problems.
Water siphons past check valve when trying to get cold water
a common cause of hot water circulator problems
THERMOSTATIC COMFORT VALVES
Comfort valve hot water circulators utilize a pump installed at the water heater connected to the hot water supply pipe. Thermostatic comfort valves or sensor valves install under sinks connecting the homes hot and cold water lines together. Material within these valves expand and contract (open / close) depending on the temperature of the water contacting the valve. These "normally open" thermostatic valves close when 95F degree water contacts the valve, preventing hot water from entering the cold water lines. This being true also means anytime less than 95F degree water contacts the valve the valve will be open. Any use of cold water, i.e. toilet flushing, watering lawn, etc. drops the water pressure in the cold water lines but, not the hot water lines. The higher pressure in the hot water line force's water to siphon through open thermostatic valves and into the cold water line even though you intended to only use cold water. Until 95F degree water from the water heater reaches and closes the valve the homeowner is left waiting for cold water. It's important to remember that any amount of water siphoned into the cold water line is instantly replaced at the water heater with very cold city water. Thus, repeatedly placing significant needless additional demand on your water heater when using cold water.
SOLUTION: RedyTemp® "normally-closed" silent solenoid
Prevents costly energy waste, wear and tear on your water heater and the frustrations of waiting for cold water associated with multiple daily hot water siphoning occurrences during cold water use.
RedyTemp® solenoid solved many hot water circulator problems
by preventing hot water line siphoning during cold water use
RedyTemp® solenoid is compared to thermostatic valve flaws
which cause hot water circulation problem
Correcting one inconvenience (waiting for hot water) by creating two inconveniences (waiting for cold water / using cold water places demand on water heater) is hardly a solution.
