First of all, these two devices are one-way? If you are one-way and you and a loop-powered, are you looking for a 40A circuit breaker with leakage protection. This calculation, a total of 5.85 kilowatts two devices. Conservative about equal to 6 kW. Electricity voltage single phase 0.22 kV consider 0.8 (power factor why 0.8 is a professional, you know that the data just fine). Usually two devices operating at full capacity, the loop current is calculated as 6/0.22/0.8 approximately equal to 34A. Taking into account the family, the distance of the wire is not long, and Concealed in the wall, one-way 6 square copper wire ampacity just in case ambient temperature of 30 degrees is 34A. 6 square wire though you can use, but still not very reasonable. 'll Tell you why. Small inner tube circuit switch 34A profile, but also to meet 34A of equipment use, and amplification of adjacent 40A small switch should choose a file. This time the problem came out, although the front to help you calculate the carrying capacity of conductors are relatively conservative. But it is difficult to take into account the quality of domestic wire, so can not say if the phase current last more than 34A wire can the chin could not carry the consequences wire premature aging. And did you notice the loop with a small switch is 40A a file, that is the load 34A 40A following the switch does not trip! So in theory, with 6 square wire a little less reasonable. . Best with 10 square. The leakage switch to bring. Family of all electrical equipment, as long as usual to hand can touch the exposed metal should install the GFCI. Ground wire this should be needless to say you know. Upstairs says the device comes with leakage protection switch so without belt.

Practice has proved that the use of combined solar heat pipe vacuum tube collectors with lithium bromide absorption chiller air conditioning technology program is successful, it is for the use of solar thermal technology has opened up new application areas. Solar absorption air conditioning compared with conventional air conditioning with three obvious advantages: (1) solar air conditioning season adaptability, that is, the system cooling capacity increases with increasing solar radiation, which is just summer people an urgent requirement for air conditioning consistent; (2) conventional compression chiller Freon media have a great role in the destruction of its atmosphere, and absorption chillers using non-toxic, harmless lithium bromide as medium , it has to protect the environment is very favorable; (3) the same set of solar absorption air conditioning system can be cooling in summer and heating in winter and other seasons hot water combined, significantly improve the utilization of the solar system and the economy.

Not a direct answer, but you can make a comparison: ordinary domestic solar glass vacuum tube solar, which is the tube off the water, by the water quality impacts, tube easy scaling, the air can not exist due to weather; glass vacuum tube solar impact squib system paralysis, air to water supply to large, continuous water supply, the water temperature is constant, but the precondition is the consumption of electricity, installation, landlord due to the top floor, does not exist much problem in two ways, Two of the service life are also similar. The air can be heated up to 1000 kg, 15 ° C the 55 ℃ example is basically tariff multiplied by about 7 kWh specific conversion landlord under consideration or landlord can find in the market under the split solar water heater to sub style coupled with electric heating, this is good advice, more provinces