Heat pump (high 7 nov 2016 how many watts do you need to run the average home and best thing is calculate your unique solar usage in fact, hvac system uses most energy of any other device or appliance house it depends much use, where live, want imagine that 48 kwh electricity per day (about average) it's relatively easy figure out appliances use if australian 18 day, 6,570 year.
However, ABS is used in rocking chairs and some recliners. Polypropylene, on the other hand is best fit for office chairs and for both outdoor as well as indoor usage. The basic difference between the two is that-: ABS is hard and sturdy, whereas Polypropylene chairs are lightweight and made up of softer material. If you are still stuck on buying the right chair, consider factors such as pricing, etc. to come to a decision.
ABS chairs are meant to be much more expensive than polypropylene chairs whereas the overall strength of ABS steals a march over polypropylene. ABS has a tensile strength of about 5500 psi, while polypropylene has a tensile strength of about 4000 psi. ABS is also comparatively harder and lighter. So it's fairly obvious that ABS is the stronger material out of the two.