Due to the use of different materials and heating prices are different, so can only be based on the Beijing 1996 edition of construction project budget estimates for the quota provisions to be evaluated. With conventional radiator, building riser, dry tube, indoor pipes, radiator and auxiliary materials and labor costs, every building, Beijing m2 cost: 76 Yuan/square meter; risers and dry pipe represent only 40% of the cost of each building cost about $ 30.00 m², indoor section of horizontal pipes, radiator and auxiliary materials for 60% of the cost of building square meters each, about $ 46.00. Floor radiation heating dry pipe, and riser of consumption compared with radiator can save 50%-60%, while the Interior only 1 to 2 meters of pipes, radiator and heating pipes instead which can dramatically reduce the cost of the materials, and the actual cost of heating in each building square around 40 Yuan.
A comparison of the initial investment,
Due to the use of different materials and heating prices are different, so can only be based on the Beijing 1996 edition of construction project budget estimates for the quota provisions to be evaluated.
With conventional radiator, building riser, dry tube, indoor pipes, radiator and auxiliary materials and labor costs, every building, Beijing m2 cost: 76 Yuan/square meter; risers and dry pipe represent only 40% of the cost of each building cost about $ 30.00 m², indoor section of horizontal pipes, radiator and auxiliary materials for 60% of the cost of building square meters each, about $ 46.00.
Floor radiation heating dry pipe, and riser of consumption compared with radiator can save 50%-60%, while the Interior only 1 to 2 meters of pipes, radiator and heating pipes instead which can dramatically reduce the cost of the materials, and the actual cost of heating in each of the buildings around the square, about $ 50.
II. comparison of running costs
Low-temperature radiant floor heating (floor heating), the biggest advantage is to save energy.
Radiant floor heating water temperature 60 ° c, winter temperature in Beijing down to 15 ° c, widely used in water supply temperature 50 ~ 55 ℃. Therefore, the water temperature is low, small heat loss. Radiant floor heating one major characteristic is the radiation intensity and temperature of the dual role of room heating, forming a more reasonable indoor temperature distribution and heat radiation, and heating and radiator in the same water temperature, heating can have 3 ~ 4 ° c equivalent thermal amenity effect. Therefore, the use of ground heating design room temperature, ambient temperature than ordinary radiator heating and low 2 ° c, could meet the radiator heating the effect you want. By radiator heating water temperature 90 ° c above, the use of ground heating can save 30% energy savings in the same proportion of the cost. Room thermal gradient on low, under the high absolute satisfying the person's physiological needs.
3. comparison of maintenance costs
㈠, any brand of the radiator in the course of using, both live corrosion phenomenon, after several years or ten years of age, radiator and indoor branch pipe corrosion, leakage occurs, each heating season must for repair or replacement, maintenance costs, to tenants and developer increased economic burden.
㈡, floor heating no such defects, plastic pipe maximum advantages: ① corrosion resistance: from electrolyte; ② anti-aging: lead plastic ageing due to ultraviolet radiation, and plastic pipes buried in cement layer, avoids the ultraviolet radiation, so plastic caikang aging; ③ never scaling: plastic pipe itself does not create scale, if the tube with water scale or rusting of may due to the pressure of the motive and plastic pipes with smooth inner wall, scale or corroded materials will not be glued to the pipeline, with pressure flush to return pipe; ④ plastic pipe life span for 50 years, if not man-made damage impermeable product belongs to permanent. So every winter during the first heating without leaving home; under construction as long as acceptance, the pipes are never repair products.
Use of plastic pipes for floor heating, to tenants and developers bring to save money and time and save the largest comprehensive investment benefits.
Fourth, the customer benefits the comparisons
1. use area:
By radiator heating radiator not only takes up the area and indoor heating pipe also occupied the area. Such as radiator thickness is 10cm, installs when away from the wall 5cm, heating network plus heating cover 5cm, thickness is 20cm, width, height 270cm 150cm, which occupies the space area 0.81 cubic metres and covers an area of 0.3 square meters. This is just a group of space occupied by a radiator covers and area of use, this House with 11 group radiator, the customer will lose 3.3 m² usable floor area!
However, one of the advantages of floor heating is not occupying the area, water separator's size is very small, can be placed in the bathroom or kitchen a corner. In particular, developers with floor heating, imperceptibly to customers increased indoor area, can also be used as sales hot selling points, raise the sales price as appropriate.
2. comfort:
Radiator belongs to air convection cooling, heat half through the House, so it flows to the opposite effect is hot feet cool.
But the floor heating is different, the heat rises from the feet, produces the following temperature high and low temperature above temperature gradient, have the effect of foot thermal head clear, consistent with the human physiological needs, to completely avoid the "cold play" from the feet, to feel very comfortable.
3. the decoration costs:
For the sake of aesthetics, radiator for packaging decoration, to tenants and developer increased economic burden. But the floor heating is not required.
4. each room temperature can be adjusted, every floor heating circuit has a valve control, the user can control valve door to adjust the appropriate temperature.
5. on the glass and wall condensation problems
From Korea and Japan, with floor heating and field trips, facts prove that the walls and floor type doors
The window does not cause condensation phenomenon.Furthermore, through our several years of practice also proves that the floor heating is not on the floor-standing and wall and door glass produces condensation phenomenon. Used for 6 years and uses three winter use landing doors and never happens this phenomenon.
These are under floor heating and other heating methods, as well as our many engineering practice results in a conclusion that the reference to members.
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