Air Source Heat Pump Radiant FloorPerhaps the most suitable heating system for any heat pump is radiant floor heating. The reason is simple, the lower the design temperature, the higher the performance of the heat pump. Radiant floors usually require a supply temperature of 110-120 F, while larger systems can be as low as 80-90 F. This lower design temperature/higher performance is applicable to any type of heat pump including geothermal systems. In fact, all modern circulating heating is designed around lower temperatures. Condensing gas boilers, solar heat pumps and heat pumps all work better at lower design temperatures.
Radiant floor heating is an ideal choice for heat pumps because of its lower design temperature and its greater cushioning quality compared to other heating emitters. The large mass allows the heat pump to have a small temperature change, but at the same time the mass can hold a large amount of energy, thereby reducing the short cycle of the heat pump. The radiant floor heating heat pump can adjust its frequency to match the load to achieve the highest performance output. Because floor radiation is a very stable thermal mass, the radiant floor heating heat pump can adjust itself to match the load and maintain its frequency to match the load, which is much better than other types of transmitters that quickly dissipate energy. For example, the mass of a forced-air furnace is small, it is difficult to maintain an accurate temperature, and it requires more on/off cycles.
Types of radiant floor devices-There are four main ways to introduce radiant floor heating when using heat pumps. The larger the quality, the better, so concrete slabs or suspended slabs are always the best. There are also some good products that use aluminum panels, which can be installed between the joists or above the plywood subfloor.
Full hydraulic control
The radiant floor heating heat pump can be integrated into any floor radiant heating design and replace any gas or electric boiler. Using a buffer tank, we can set the heat pump to operate at the lowest design temperature and maintain that temperature in the buffer tank. From here, the system can deliver heat to any part of the house by removing the energy in the buffer tank.
Hydraulic radiant floor cooling can also be achieved by floor radiant cooling. This is done by monitoring the dew set point in the system to avoid condensation. The radiant floor heating heat pump now cools the buffer tank, and the control system uses cooling water to remove heat from the floor. Remember that heat is always transferred from heat to cold, so the frozen floor is like a large sponge that can absorb the hot air in the building.
If you are considering adding radiant floor heating, please let us help. We can provide you with all the materials and controls for any type of radiant floor heating project, including the correct calculation and supply of PEX and manifolds, controllers and pumps.
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