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Green Horizon provides a complete range of energy efficiency and green building solutions for home owners and businesses.

Most homeowners are always looking for ways to improve their living space. This can be especially frustrating when money is expended for improvements when we don't realize any tangible benefit right away. For example, installing a new heating and cooling system is an upfront expense that will take some time to recoup via the energy savings.
Sometimes homeowners avoid certain improvements because of the cost involved. Consider how many politicians fight against legislation to help curtail greenhouse gases because they say it costs too much. What they don't realize is that maintaining the current direction will cost dearly in the not too distant future.
Sir Nicholas Stern, a British economist, believes cutting harmful emissions down to an acceptable level will cost about 1% of the global GDP by the year 2050. He also maintains that failure to act soon will cost about 20%. Taking the right steps now will not only reduce emissions but actually be an economic benefit.
From the personal standpoint of the homeowner, it is hard to justify spending money for certain home improvements. There are no set in stone standard projections for everyone on what they will save on their utility bill by upgrading to more energy efficient appliances, sealing and caulking penetrations, adding insulation, and providing other changes to their homes. An energy audit is the best way to get a realistic estimate on the possible savings and expenses involved with home energy improvements.
Just as the world communities can't immediately change global warming even if everyone is on the same page, we can only incrementally change our carbon footprint based on what we can do economically. If everyone contributes something, the whole benefits.
If you can't replace your old HVAC system at the current time, then find out what you can do. The more you can save starting now the sooner you will be able to buy a new HVAC system and begin recouping the cost via energy savings. There is an old saying, "Take care of the pennies and the dollars will take care of themselves." Start where you can and improve as opportunity allows you to do so.