Saturday, February 16, 2013

Mini Split Cost. The Heat pump or Gas Heating.


Mini Split Cost. Law of Thermodynamics.



A heat pump is a machine for transferring thermal energy as heat from one environment to another, as needed. To achieve this action requires a work input according to the second law of thermodynamics, according to which the heat is directed spontaneously from a hot reservoir to a cold, and not vice versa, until their temperatures are equalized. This phenomenon of transfer of heat energy is performed, mainly, by means of a compression refrigeration system refrigerant gases, whose particularity lies in a cycle inverter valve forming part of the system, which can reverse the direction of cooling flow transforming the evaporator and condenser vice versa.




With gas heating the most common is that we have a common boiler for whole house (or block, or community) that is responsible for heating water and circulated by all the radiators in the building. These radiators, which are placed in the rooms, transmit heat carrying hot water to the air inside the room in which they are placed.


 


With this type of heating are multiple losses, since the heat generated in the combustion gas is not absorbed by the water 100%, and the rest goes through the chimney. Also, the building walls absorb a large proportion of heat, both the pipes and the recessed side of the radiators.


Mini Split Cost Test. Preliminary Considerations on the Winter Climate.



The commercial heat pump (single stage), does not work properly when outside temperatures below 7 ° C and stops working when those descended from 0 ° C approx. (Any brand). Neither work in extreme winter conditions called heat pumps geothermal principle, except in exceptional cases (very good driver or Subsurface volcanology)


 


The only heat sources remain safe and continuous: The combustion process (boiler) and the direct conversion of heat energy into electricity (Fixed).


The commercial heat pump works with excellent performance (COP = 2.5 to 4. 5 approx.), If outside temperatures are only moderately low (7-15) ° C approx. There remains however the drawback of low temperature heating fluid generated (T = 40-45C °) clearly insufficient feed stoppage installation of radiators comfortably even under moderate winter.


Mini Split Cost Power Supply. Considerations as Heat Energy.



The heat pump installation in any case should not involve removal of boiler or electrical resistance which can not substitute in extreme winter (Tex <= 7 ° C). You can only do it in the field of moderate outdoor temperatures indicated above.


The heat pump is suitable for large unused spaces of continuous and whose climate should have a quick answer.


The cheapest way to heat our homes depends on our budget and the price of the energy required, but for a normal family, the current fuel prices, the best option is a gas heating or otherwise of diesel.

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