Open Direct Radiant Floor Heating

Why we do not recommend open loop heating systems.

Open direct radiant floor heating. One where the water used for space heating is also used for bathing cooking cleaning and for consumption. In an open radiant system the potable water is just directed into the floor heating system and eventually comes back to the water heater where it may be directed back to the floor heating system or it may be directed to the shower head of the shower stall where some of that water is atomized into a mist which is inhaled by the bather. The same water that ends up in your hot shower or dishwasher for example has passed through the floor first. The two systems are basically tied together.

We are putting radiant floor heat in our new home. Radiantec s indirect system system basically combines our open direct system with our closed system this system uses a heat exchanger to separate the heating fluid from the domestic hot water when radiant heat is called for by the thermostat the radiant heating zone pump and the heat exchanger pump come on at the same time. The system uses one very efficient water heater to make domestic hot water for the home and warm water for radiant heating. The open direct system by radiantec company is the first truly new heating system in a generation.

Radiant floor open direct systems from reading previous posts it has become clear you guys don t think much of that vermont outfit setting aside that for a moment i m intrigued by their open direct design set forth in their schematic attached. The money saved from not buying a boiler can be used to acquire a high quality condensing water like the polaris. It is any system where you mix heating water and drinking hot water potable in the same system. The overall low temperature of the unit improves efficiency.

The open system uses one heat source your domestic water heater to provide both floor heating and domestic hot water. Additionally know that these higher temperatures are often above what may be necessary for radiant floor heating. Then the heat radiates out from those and warms your room. We are also putting in an on demand hot water heater that will heat the floor water as well as the house water.

Our heating contractor suggested an open loop system that has a card to circulate the hot water every 12 hrs to keep it from getting stagnant. Open direct systems used for space heating. Radiant heating is the most efficient heat. Definition of open direct system.

Radiant heating systems provide direct heat to floor or walls. What is an open loop heating system. The open direct system is a combination system getting two uses out of one unit.