Warm from the earliest western countries was introduced into China, because it is from the floor to the heating, in line with the requirements of human head cold feet warm physiological, high comfort and because the heating does not occupy wall, installation invisible, not walls blackened and does not affect the furniture such as reasons, coupled with the heating company to conceal its shortcomings, or because the floor heating in China started soon, the vast majority of people, not just consumers, including HVAC companies and developers responsible person, are still not very clear the disadvantage to warm, and some are even fatal flaw, thus leading to warm in our country development is very rapid.

However, this rapid development is lopsided development and blind development. Not only does not consider the energy saving and environmental protection, without taking into consideration the warm hazards to human health.

Some need to open during the day to night off the intermittent heating office buildings, schools, kindergartens and other public areas is also installed to warm, a lot during the day and work at home not only need heating in the evening of working families also installed to warm, due to the thermal inertia of the warm not intermittent heating, no 24 hours of heating, resulting in a waste of energy.

Not only such, heating and other up to 15 the shortcomings of 4 health hazards, below the floor heating to decorate the effect, heating speed and energy consumption level, health effects and the installation and maintenance of analysis you warm what specific shortcomings.

(a) the influence of decoration

First, we should raise the installation of floor heating ground 8-10cm, the impact of housing clearance. Now the high-rise buildings have height is not high, to raise so much, some families the ceiling, resulting in life in this space a sense of depression; due to the development of sliding door and door below reserved space is not high, if installed to warm to remove elevation reinstall.

Second, can not be installed with the wood floor wood floor. Due to the thermal resistance of solid wood flooring, to make the wood floor heating room, installation of solid wood flooring will not be installed. However, due to the comfort, health and high-grade solid wood flooring, many families still prefer to use solid wood flooring. If installation of floor heating, surface covering material only tile, marble, enhanced wood floors and composite floors and due to the enhanced thermal resistance of solid wood flooring and laminate flooring is generally three times the tiles and marble. Therefore, install tiles and marble is best choice, or energy consumption will be much higher.

Third, warm once after laying, the ground can not again such as slotting, drilling, screw nail changes, otherwise it will destroy the warm, so warm, if installed, after if the second decoration is more difficult; and the bathroom twice waterproof and closed water test, very troublesome.

(two) heating speed and energy consumption

Fourth, is the slowest heating heating heating mode. Generally 3-4 hours indoor in order to achieve the ideal temperature. Therefore, installation of floor heating are generally throughout the winter always open, not suitable for the use of the stop and go.

Fifth, can not be intermittent heating. Not suitable for only need heating in the evening of working families and day open late Shangguan and schools, kindergartens, office buildings and other public places to install. For half the time this day to open half stop places if the installation of floor heating 24 hours will be about 50% of energy consumption. Now many HVAC company didn't take the owner's interests, but also to ask is not working families are unified to recommend they installed to warm, in fact, this is as is not responsible for the behavior.

Sixth, not energy saving and environmental protection. Due to warm heat accumulated in concrete slowly to disseminate, is the most energy intensive heating mode. Practice has proved that the heating is generally 2-3 times that of ordinary heating energy consumption, is 3-5 times that of skirting heating energy consumption (PS: skirting warm is the latest type skirting line heating). A good example, we have to an elderly households home installation of wall mounted gas boiler + hanging wall type radiator for heating, because the elderly children are working in the field, at the start of the annual heating let us to help open, probably 2000 winter to the end of December is cold to let us to give him open. At that time I asked him: old weather in such a cold, now is not heating, you not cold? ", old point upstairs, said: upstairs, equipped with the warm, I do not open heating, home have 14 and 15 degrees." Ah, I was feeling his family did not really cold, visible to warm the heat loss is much, some families if upstairs downstairs are installed to warm, his house without heating, indoor will very warm.

(three) the health effects of the four major

Seventh, Yi Yangchen, easy to cause respiratory diseases. Because the heating from the heating up, will be on the ground in dust floating in the air, especially easy to cause the chronic pharyngitis, rhinitis, bronchitis and so on. Some installed to warm the winter pharyngitis always treatment is not good, if for a not installed to warm the environment live 10 days to half a month had a pharyngitis almost good feeling, and it is for this reason. Especially the old chronic bronchitis and emphysema patient home must not be installed to warm.

Eighth, easy to cause varicose veins and varicose veins and other diseases. If warm leads to long-term high surface temperature, foot and leg ministry at high temperature for a long time, can cause blood vessels to dilate, eventually leading to varicose veins and venous inflammation and other diseases. In the "JGJ142-2004 floor radiant heating technology procedures" in the third chapter, it is clear that the surface temperature of the area of the person in the long term is not higher than 28 degrees. This is in fact a few decades ago the European experience and lessons, the first European use