A heat trap is a feature that reduces heat loss from a water heater by preventing hot water from rising out of the tank and cold water from sinking in. It can be created with pipe loops or installed as check valves on hot and cold lines. By limiting natural convection, heat traps keep water hotter longer and improve efficiency.
/hiːt træp/
A heat trap is a feature that reduces heat loss from a water heater by preventing hot water from rising out of the tank and cold water from sinking in. It can be created with pipe loops or installed as check valves on hot and cold lines. By limiting natural convection, heat traps keep water hotter longer and improve efficiency.
What does a heat trap do?
It prevents natural convection in pipes, keeping hot water in the tank longer and reducing energy waste.
Source: The Cooling Company
Heat traps reduce standby heat loss in water heaters.
A water heater installed in a garage uses heat trap valves to reduce heat loss through piping and lower utility costs.
Include heat traps during new water heater installs or retrofit them to reduce standby losses.
“Include heat traps during new water heater installs or retrofit them to reduce standby losses.”
Some modern water heaters include built-in heat trap nipples to reduce losses.
Do heat traps make a noticeable difference?
Yes. They reduce standby losses, especially when the heater is in a cooler space.
Can I add heat traps to an existing water heater?
Often yes, but a professional should verify compatibility and install them correctly.
Are heat traps required by code?
Some regions require them on new installations or higher-efficiency systems.
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