Under floor heating

Solar water heater: click to view diagram

The hudu water heating system was designed in conjunction with AOG to offer a cost effective and efficient under floor heating solution which is specifically suited to the requirements of our market. The system is based on AOG’s original Ondol design which has been vigorously tested and is in use in many countries around the world.

The hudu system provides a very real alternative to the conventional “in-screed” electrical and water heating systems currently available. In a market where building construction often fails to adequately address the issue of floor insulation, the hudu solution remedies this and all the other requirements for a more efficient and cost effective method of under floor heating.

System Description

The hudu system consists of four key components; the under floor heating panels, a heat source provided by solar collector panels and/or a heat pump, a hot-water storage tank and a control system consisting of a manifold, solenoid valves and control panels.

Advantages of hudu under-floor panels

The hudu panels are pre-engineered with purpose designed connections to avoid the need for welding.
The hudu panel is laid on top of the screed. It avoids the time consuming laying of pipes in the screed and is easy to repair or replace.
The panels are ultra light and suitable for installation on existing flooring.
The panels are fitted just before the tiling, wood flooring or carpeting is laid, and so minimizes the potential for damage in the finishing process.
The insulation in the panel minimizes heat loss into the screed. This can pro-vide significant efficiency improvements of up to 30% over conventional under-floor heating.
The panels provide a load resistance of 45kg/cm² with good sound damping properties.
The panels avoid the use of electrical current.
The combination of a high heat conductivity and insulation enables good under-floor heating at relatively low water temperatures, to provide significant savings in energy costs.

Underfloor panels cutaway

System configuration

Heat source

The energy required to heat the water for the UFH system is provided by solar collector panels, a heat pump, or a combination of both. This provides a more eco friendly and cost efficient alternative to the gas boilers, electrical boilers and electrical elements which have been more commonly in use.

Manifold / Solenoid Valves

The manifold stage consists of solenoids and valves that can be tuned either manually or electronically to control the flow of hot water to the desired locations. The desired temperature at each location is achieved by setting the valves to allow the appropriate amount of hot water to reach the panels.

Panels

The panels are made up of Hydro pipes, expanded polystyrene and an insulation plate.
The panels deliver the heat energy to the location to be warmed up. The layout configuration of the panels for the location is determined according to the clients requirement.