Open Direct In Floor Heat System

An open radiant floor heat system is one in which the potable water that serves the drinking and bathing needs of the house is also used to heat the floors.

Open direct in floor heat system. The low temperatures of a radiant floor system can become a breeding ground for potentially fatal bacteria. The open system uses one heat source your domestic water heater to provide both floor heating and domestic hot water. The two systems are basically tied together. What is an open loop heating system.

Must use all potable equipment including pumps expansion tanks everything. And check with your local code enforcement folks some places don t allow open direct. This i have personally seen being done around my neck of the woods. Radiant heating systems warm the building by locating heating tubes within a large surface area of the building such as the floors or ceiling and then circulating warm water through the tubes.

The open direct system takes full advantage of the fact that only warm water is needed for both uses instead of the very hot water that is needed by. The same water that ends up in your hot shower or dishwasher for example has passed through the floor first. Why we do not recommend open loop heating systems. The benefit of open direct system is that it is more efficent because there is no heat exchanger.

It is any system where you mix heating water and drinking hot water potable in the same system. Two things to check. Besides in most areas of the us interconnected systems are not code legal by the way the hot tub room that i build for my wife is radiant heated using a 50 gal. Get another waterheater or a heatexchanger and install a dedicated control circulator and expansion tank for the floor heat.

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