| |
Electrical Boiler |
Fuel, gas-burning boiler |
Coal-burning boiler |
Heating cable |
| Pollution |
The circulation pump of boiler have great noise,
the system has stream noises. |
Oxygen consumption big, waste gas and discharged,
peculiar smell while burning; Boiler circulation pump noise
great, the system has stream noises |
Coal pile, ash dreg, smoke and dust cause environmental
pollution, circulation pump of boiler have great noise, the
system has stream noises. |
No |
| Lifetime |
Must change a new boiler in 8-12 years |
Must change a new boiler in more than 10 years |
Must change a new boiler in 8-12 years |
The same as lifetime of the building |
| --- |
The electric heat pipeline is apt to be damaged,
and apt to emit, drip, and leak. The system reliability is low.
|
Reliability is low. System pipeline too much,
apt to emit, drip, and leak. Need to overhaul regularly |
Need to overhaul once every two years, system
reliability is low, apt to emit, drip, leak |
No |
| Appearance |
Pipeline and radiator uncover, not beautiful. |
Various kinds of pipelines gather, radiator uncover,
not beautiful |
Outdoor chimney stand, indoor pipeline and radiator
uncover, not beautiful |
Only see beautiful thermostat in the room. |
| Comfort |
Hot air convection causes dusts to float in the
room, and air is hot and dry. |
Hot air convection causes dusts to float in the
room, and air is hot and dry. |
Hot air convection causes dusts to float in the
room, and air is hot and dry. |
Clean, warm like sunshine, comfortable |
| Fuel |
No |
High costs to transport |
High costs to transport |
No |
| Initial Investment |
relatively high |
relatively high |
relatively high |
low |
Maintenance
Cost
|
Relatively high expenses for changing a new boiler,
ordinary maintenance of radiator and pipeline also consume manpower
and financial resources |
Relatively high expenses for changing a new boiler,
ordinary maintenance of radiator and pipeline also consume manpower
and financial resources |
Relatively high expenses for changing a new boiler,
ordinary maintenance of radiator and pipeline also consume manpower
and financial resources |
No |
| Operation Cost |
Relatively high |
Relatively high |
Relatively low |
Relatively low |
| Thermal Efficiency |
- |
60%¡«85% |
- |
100% |
| Temperature Controllability |
Temperature uncontrollable,
vertical and level temperature imbalance. Room temperature can
not be reached unanimously, cold and hot temperature between
top floor, ground floor, back side and front side differs greatly
|
Temperature controllable to any rooms, all rooms
can reach the same temperature, only 0.6 ¡æ of temperature difference |
| Energy Consumption |
Unable energy-conservation, so long as someone
lives, the system will work as usual soon |
Able economical operation, economize the energy.
People can close the system or turn down temperature when leaving |
| Water Consumption |
Need make circulation with hot water, and a large
number of water runs off, lead to the fact the waste of water
resource. |
No |
| Land Occupation |
Boiler, pipeline, radiator take certain space
and increase the load of floor. Coal pile, ash dreg of coal-fired
boiler room take up the valuable land for building too. |
No |
| |
Floor
Heating