Water heaters ELDOM with insulation of new generation

Water heaters ELDOM with insulation of new generation

Дата: 10.08.2020

Polyurethane foam (PPU) is the beast insulation for water heaters. We, Eldominvest, always use some of the best polyurethane foam systems. The quality of the insulating material is essential for the energy efficiency of any water heater. It is very important that the product characteristics remain unchanged through the warranty period of the unit.


After completion of the laboratory tests, starting in August, we are beginning mass production of ELDOM water heaters with a Closed-cell polyurethane system (PPU) of new generation of the HFO group (hydrofluoroolefins). The components are manufactured by a world-renowned manufacturer according to a formulation that is specially designed for ELDOMINVEST.
This material has an extremely low global warming potential (<2 GWP) and zero impact on ozone layer, it is non-toxic and non-volatile and features high energy efficiency and thermal conductivity coefficient λ of approx. ~ 0.021 – 0.023 W/mK (Watts per meter-Kelvin). It has long-term thermal stability and excellent dimensional stability in the event of rapid temperature changes that are usually observed in water heaters. These parameters are due to the fine closed-cell structure of the 97% Closed-cell system. That is to say that 97% of air bubbles in the polyurethane foam remain enclosed. Namely, they ensure the heat insulation.
Insulation parameters are not only dependent on its quality and structure but also on some other factors:
- Insulation thickness. Our practical tests have proven that the difference between 30 mm and 20 mm insulation is 7%, and between 40 mm and 20 mm insulation is 13% of heat losses. This difference is insignificant in thicknesses of 60 mm and more, which renders such insulation unprofitable.
- Even coating. The regular distribution of polyurethane foam around the water tank is not insignificant. Thanks to its long years of experience, Eldominvest has improved the method for optimal injection of HFO components.
It should never be forgotten that the user value of the unit depends on its efficiency but not only on its functional features. All water heaters heat water but ELDOM water heaters are proven to keep it warm but not to heat the surrounding area. You can tell the differences between different water heater brands even without complicated calculations. If a friend of yours has a water heater that you also like, touch its casing, if possible, when the water is heated. If you feel nice warming, this is not exactly your water heater.


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Water heaters ELDOM with insulation of new generation